speos caa v5 based optical shape design - optis portal |...

SPEOS CAA

V5 Based

Optical

Shape Design

V13.0

Table of Contents

Getting Started .................................................................................................... 5

Changing the User Interface Language .............................................................. 5

Managing Documents ...................................................................................... 5

Features .............................................................................................................. 6

Parabolic Surface ........................................................................................... 7

Parabolic Surface Overview ...................................................................... 7

Creating a Parabolic Surface .................................................................... 7

Parameters of a Parabolic Surface ............................................................ 8

Elliptical Surface ........................................................................................... 10

Elliptical Surface Overview ..................................................................... 10

Creating an Elliptical Surface.................................................................. 10

Parameters of an Elliptical Surface .......................................................... 11

Collimating Surface ...................................................................................... 12

Collimating Surface Overview ................................................................. 12

Creating a Collimating Surface ............................................................... 12

Parameters of a Collimating Surface ....................................................... 13

Optical Surface ............................................................................................ 14

Optical Surface Overview ....................................................................... 14

Creating an Optical Surface ................................................................... 14

Parameters of a Pillow Surface ............................................................... 14

Near Field Lens ............................................................................................ 25

Near Field Lens Overview ...................................................................... 25

Creating a Near Field Lens ..................................................................... 25

Parameters of a Near Field Lens ............................................................. 26

Optical Lens ................................................................................................. 27

Optical Lens Overview ........................................................................... 27

Creating an Optical Lens ........................................................................ 27

Parameters of an Optical Lens ................................................................ 28

Light Guide .................................................................................................. 37

Light Guide Overview ............................................................................ 37

Creating a Light Guide .......................................................................... 38

Parameters of a Light Guide ................................................................... 38

Tutorials ............................................................................................................ 43

Creating a Smooth Reflector .......................................................................... 43

Creating a Faceted Reflector .......................................................................... 45

Lesson 1: Creating the Reflector ............................................................. 45

Lesson 2: Exchanging the Geometry ....................................................... 56

Creating a LED Lens ..................................................................................... 59

Lesson 1: Creating the Near Field Lens .................................................... 59

Lesson 2: Running Interactive and Direct Simulations ............................... 60

Lesson 3: Measuring of Angular Aperture ................................................ 63

Lesson 4: Measuring of Efficiency ........................................................... 64

Lesson 5: Adding the Lens Array ............................................................ 65

Lesson 6: Analyzing the Influence of the Lens Array ................................. 67

Creating a Light Guide .................................................................................. 69

Creating a High Beam Reflector ...................................................................... 70

Lesson 1: Opening Project ..................................................................... 70

Lesson 2: Creating the Reflector ............................................................. 70

Lesson 3: Cutting the Reflector .............................................................. 73

Lesson 4: Applying Material to the Reflector............................................. 75

Lesson 5: Adding Optical Properties to Materials ....................................... 75

Lesson 6: Creating an Intensity Sensor ................................................... 75

Lesson 7: Creating a Direct Simulation .................................................... 76

Lesson 8: Running the Direct Simulation ................................................. 77

Lesson 9: Creating Measures ................................................................. 79

Lesson 10: Checking the Regulation ........................................................ 81

Transferring Geometrical Data ....................................................................... 83

Index ................................................................................................................ 86

Getting Started of 88

GETTING STARTED

Changing the User Interface Language

To set the japanese language for the user interface, you can view the CATIA V5 User's Documentation.

The technical documentation automatically appears in english for all the selected languages.

Managing Documents

Features

Feature created by Copy/Paste inherits its name from the copied feature’s name followed by a dot and

the index of the copy.

Isolated Simulation

Isolated simulation inherits its name from the original simulation followed by a dot and the index of the

isolation.

of 88 SPEOS CAA V5 Based Optical Shape Design User Guide

FEATURES

ptical Shape Design (OSD) toolbar is integrated in the Shape, Generative Shape Design and Part

Design workbenches.

Opening with CATIA V5 alone

This table describes the capability to open and/or use CATParts including OSD features created with

SPEOS CAA V5 Based V13 with CATIA V5 alone:

R18 R19 R20 R21

PARABOLIC SURFACE

ELLIPTICAL SURFACE

COLLIMATING SURFACE

OPTICAL SURFACE

NEAR FIELD LENS

OPTICAL LENS

LIGHT GUIDE

The warning message displayed at the file opening can be deactivated.

For more details, you can view The startup catalog files in the following list could not be found.

Usability with CATIA V5 alone

This table describes the capability to use the geometrical result of OSD features with CATIA V5

commands with CATIA V5 alone:

R18 R19 R20 R21

PARABOLIC SURFACE

ELLIPTICAL SURFACE

COLLIMATING SURFACE

OPTICAL SURFACE

NEAR FIELD LENS

OPTICAL LENS

LIGHT GUIDE

This limitation can be bypassed by carrying out a procedure.

For more details, you can view Geometrical Data Transfer Tutorial see page 83.

Features of 88

Parabolic Surface

Parabolic Surface Overview

The parabolic surface is designed in order that each ray coming from the focus point be collimated in

surface axis direction after a specular reflection on the surface:

Creating a Parabolic Surface

1. Click Parabolic Surface (Optical Shape Design).

2. Set the parameters see page 8.

3. Click OK.

The parabolic surface is added to the specification tree.


Parameters of a Parabolic Surface

Type

Focal

Focal must be entered.

Passing Point

Passing point must be selected.

Axis

Select a line giving the direction of the revolution axis of the surface.

Direction of the surface can be changed by clicking Reverse Direction.

Focus does not necessarily belong to Axis. When not, the revolution axis of the surface is defined by

the direction of Axis and by Focus.

Focus

Select a point giving the position of the source.

The source is assumed punctual.

Orientation

Select a line fixing the orientation of the surface around Axis.

Orientation may not be defined on a plane normal to Axis; In this case, Orientation is automatically

projected onto such a plane.

Features of 88

Focal

Type the value of the focal length of the surface.

The focal length is the distance between the top and the focus.

This parameter must be entered when type is Focal only. When type is Passing point, this parameter is

driven by the passing point and displayed for information.

Size

Type the value of an edge of the surface (side of the square obtained when considering a plane normal

to Axis).

Passing Point

Select a point which is going to belong to the surface.


Elliptical Surface

Elliptical Surface Overview

The elliptical surface is designed in order that each ray coming from the interior focus be passing by

the exterior focus after a specular reflection on the surface:

Creating an Elliptical Surface

1. Click Elliptical Surface (Optical Shape Design).


3. Click OK.

The elliptical surface is added to the specification tree.

Features of 88

Parameters of an Elliptical Surface

Type

Radii

Center and Axis must be selected.

Transverse Radius must be entered.

Foci

Interior Focus and Exterior Focus must be selected.

Center

Select a point which is the center of the ellipse.

Interior Focus

Select a point which is the interior focus of the ellipse (surface-side).

The focus is the punctual locus where all the light rays converge.

Exterior Focus

Select a point which is the exterior focus of the ellipse (opening-side).


Axis



Center does not necessarily belong to Axis. When not, the revolution axis of the surface is defined by

the direction of Axis and by Center.

Length

Type the value of the size of the arc of ellipse along Axis.

Conjugate Radius

Type the value of the ellipse radius along the normal to Axis.


Transverse Radius

Type the value of the ellipse radius along Axis.

Focal

Type the value of the focal length of the ellipse (distance between the center and one of the foci along

the revolution axis).

Collimating Surface

Collimating Surface Overview

The collimating surface is designed in order that each ray coming from the focus point be collimated in

surface axis direction after passing trough the surface:

Creating a Collimating Surface

1. Click Collimating Surface (Optical Shape Design).


3. Click OK.

The collimating surface is added to the specification tree.

Features of 88

Parameters of a Collimating Surface

Type

Size

Size must be entered.

Thickness

Thickness must be entered.

Axis



Focus does not necessarily belong to Axis. When not, the revolution axis of the surface is defined by

the direction of Axis and by Focus.

Focus

Select a point giving the focus of the surface.


Focal

Type the value of the focal length of the surface (distance between the top and the focus).

Index 1

Type a value for Index 1.

The surface is calculated using two refractive indices. This assumes that the surface is closed to make

a lens.

Index 1 is the refractive index of the external medium.

Index 2

Type a value for Index 2.

The surface is calculated using two refractive indices. This assumes that the surface is closed to make

a lens.

Index 2 is the refractive index of the lens.

Size

Type a value for Size.


Let us consider a plane including Axis and a normal to Axis on this plane. Size is the dimension of the

surface along this normal.

Thickness

Type a value for Thickness.

Let us consider a plane including Axis. Thickness is the dimension of the surface along Axis.

Optical Surface

Optical Surface Overview

The optical surface is designed in order to make a faceted reflector according to specific support and

grid.

The facets of this reflector are shaped with parameters specified by the user.

Creating an Optical Surface

1. Click Optical Surface (Optical Shape Design).

2. Set the parameters see page 14 for each tab.

3. Click OK.

The optical surface is added to the specification tree.

All the groups of pillows appear on the specification tree. For the moment, the feature is limited to

a single group of pillows named Group.1.

Parameters of a Pillow Surface

Reflector

Source

Punctual


This parameter is used to calculate the surface according to the specifications.

Extended

Select a surface giving the emitting surface of the extended source.

In practical, this parameter can be the external surface of a filament, a cylinder, a LED's chip, or any

other surface.

Features of 88

Filament - H1 lamp Cylinder - H1 lamp Chip - Luxeon Rebel ES

This parameter is required to display the source images.

Support

Parabolic Surface

The support of the pillows is a parabolic surface, that means that the four corners of each pillow belong

to a parabolic surface.

Select the parameters:

Axis: line giving the direction of the optical axis of the surface

Orientation: line fixing the orientation of the surface around Axis

The surface also depends of Source (Reflector tab) and Focal (Pillow tab).

On future version, each pillow will have possibly a different value of Focal using groups of pillows.

Axis

Direction of the surface along Axis can be changed by clicking Reverse Direction.


Initial orientation on the left - Reverse Direction for Axis on the right -

Axis is depicted in green and Orientation in purple

Source does not necessarily belong to Axis. When not, the revolution axis of the surface is defined by

the direction of Axis and by Source.

Orientation

When clicking Reverse Direction, both X and Y directions are changed.

In this case, X Start and X End are interchanged, and Y Start and Y End are too.

Initial orientation on the left - Reverse Direction for Orientation on the

right - Axis is depicted in green and Orientation in purple

Orientation may not be defined on a plane normal to Axis. In this case, Orientation is automatically

projected onto such a plane.

Freeform

The support of the pillows is a freeform surface, that means that the four corners of each pillow belong

to a freeform surface.

The freeform support is depicted in green and the optical surface in

beige - The 4 edges of each pillow belong to the support

Select a surface for Support.

Features of 88

Grid

Rectangular

All the dimensions are defined on a plane normal to Axis and not on the support itself.

The origin is optional. By default, it is the projection of the source point on the support in the direction

of Axis.

Surface Size & Element Count

Type a value for:

X Start, X End, Y Start, Y End: size of the surface

X Count, Y Count: number of facets

Surface Size & Element Sizes

Type a value for:


X Size, Y Size: size of the facets

Target

Two ways are available to create the lens: either by using intensity or illuminance values.

This parameter impacts two things on the Pillow tab:

The definition of the viewer

Some parameters shaping the elementary elements

Intensity

The target viewer displays pieces of information being intensity values.

This is useful when the area to light is defined angularly.

Illuminance

This functionality is not available yet.

Use Support Axis parameter can be unticked in order to select a custom axis system for the target.

By default, the target axis of the support is used for the target (ticked case).


Pillow

Freeform

With this type, you can shape the pillows by specifying the target where the light should be sent.

Type a value for:

Alternative algorithm (Beta)

Two different ways to shape the pillows are implemented for the Freeform type.

Tick or untick this parameter to select the algorithm to use.

Parameter ticked Parameter unticked

Beam Specification

X Start: angular boundary demarcating the left line of the target specification

X End: angular boundary demarcating the right line of the target specification

Y Start: angular boundary demarcating the bottom line of the target specification

Y End: angular boundary demarcating the top line of the target specification

Support

Focal: focal length of the parabolic surface carrying the pillows (distance between Source and the

top of the support)

X Center: tilt the parabolic support axis around the X support axis

Y Center: tilt the parabolic support axis around the Y support axis

Focal, X Center and Y Center parameters are only available with a parabolic support.

Only one point on support: boolean imposing that all the pillows have only one point belonging to

the support

This parameter is only available with a freeform support.

Features of 88

Viewer

A click on a facet of the surface displays the target specification (magenta rectangle), the beam pattern

(yellow lines) and the source images (yellow shapes).

The beam pattern is the angular contour of the beam made by the rays ray having reflected on the

pillow and coming from the source point.

The target specification is the angular area ideally lit as a result of the light coming from the source

point and having reflected on the facet.

The viewer is updated each time that a new facet is selected. Several facets can be selected at the

same time by holding the Ctrl key.

Note that on this current version of the feature, a single group of pillows exists, and thus all the pillows

have the same specification.

Radii

With this type, you can shape the pillows by specifying their radii of curvatures.

Type a value for:

Beam Specification

X Radius: radii of curvature of the arcs of circle used to generate the pillows along the X support

axis

Y Radius: radii of curvature of the arcs of circle used to generate the pillows along the Y support

axis

Support


top of the support)





the support



Viewer

A click on a facet of the surface displays the beam pattern (yellow lines) and the source images (yellow

shapes).





Note that on this current version of the feature, a single group of pillows exists.

Sharp Cutoff

WIth this type, you can shape the pillows by specifying a line being the top border of the target where

the light is sent.

This line is called "sharp cutoff" in reference to strict regulations where the line should not be crossed

by the light.

Type a value for:

Alternative algorithm (Beta)

Two different ways to shape the pillows are implemented for the Sharp Cutoff type.

Tick or untick this parameter to select the algorithm to use.

Beam Specification

X Center: position of the specification target line middle point along the X target axis

Y Center: position of the specification target line middle point along the Y target axis

Length Start: length from the specification target line middle point to the left extremity of the line

Length End: length from the specification target line middle point to the right extremity of the line

Tilt: angle made by the horizontal axis and the specification target line

Support


top of the support)




Features of 88


the support


Viewer

A click on a facet of the surface displays the specification target (magenta line ), the beam pattern

(yellow lines) and the source images (yellow shapes).





Note that on this current version of the feature, a single group of pillows exists.

Properties

The Properties panel gathers some display options customizing the viewer.

These options make easier the design process and provide a better understanding of the surface

behavior.

To reach it, right-click inside the viewer and click Properties.

Sources Images

This property is only available when the source has been defined as extended.

With this functionality, you can display some images of the source given by the selected pillow(s).

These images give us information on the surface behavior inside the target.


Source Images with X Samples = 5 and Y Samples = 3

The source images are depicted as yellow polygons bordered by red lines.

The surface of the pillow is discretized according to X Samples and Y Samples giving particular points.

The image of the extended source is then calculated for each of these particular points using the Snell's

law.

The source images are approximated because of the tessellation and the extended source convex hull

considered for the calculation.

When the Display boolean parameter is defined to true, the source images are displayed.

Type a value for:

X Samples: number of source images along the viewer's abscissa

Y Samples: number of source images along the viewer's ordinate

X and Y directions depend on Axis and orientation defined in the Reflector tab.

Beam Pattern

With this functionality, you can display the UV lines of the beam pattern for the selected pillow(s).

These UV lines give us information on the shape of the beam pattern.

Beam Pattern with X Samples = 5 and Y Samples = 3

Features of 88

The UV lines are depicted as a network of yellow lines.

The surface of the pillow is discretized according to X Samples and Y Samples giving a particular

network of lines on this pillow. The reflection of this network of lines is carried out using the Snell's

law from the source point.

The calculation of the beam pattern is calculated considering a punctual source. If an extended source

is used, the barycenter of the extended source is considered as the punctual source.

When the Display boolean parameter is defined to true, the UV lines are displayed.

Type a value for:

X Samples: number of UV lines along the viewer's abscissa

Y Samples: number of UV lines along the viewer's ordinate


Grid

With this functionality, you can display a grid inside the viewer.

This grid gives us information on the size of the beam pattern.

Grid with X Step = 5deg and Y Step = 5deg

The grid is depicted in a dark-colored green network of lines with a scaling.

This grid can be defined in intensity (cd) or in illuminance (lux) depending on the target type defined in

the Target tab.

When the Display boolean parameter is defined true, the grid is displayed.

Type a value for:

X Step: step of the grid along the viewer's abscissa

Y Step: step of the grid along the viewer's ordinate


Manufacturing

Sewing

The pillows are designed in such a way that small gap may appear sometimes between the elements.

When the Sewing boolean parameter is defined to true, these gaps are automatically filled. Else, the

gaps remain unfilled.


Optical surface without sewing - Gaps remain

between the pillows

Optical surface with sewing - Gaps between the

pillows are filled

Compatibility

This table describes the capability to use the sewing functionality depending on the pillow type and the

support type:

PARABOLIC SUPPORT FREEFORM SUPPORT FREEFORM SUPPORT + ONLY ONE POINT ON SUPPORT

FREEFORM

FREEFORM ALTERNATIVE ALGORITHM (BETA)

RADII

SHARP CUTOFF

Features of 88

Near Field Lens

Near Field Lens Overview

The near field lens is an optical component designed in order that a maximum of rays coming from the

focus point be collimated in component axis direction after passing through the component:

The source defined at the focus point is generally a LED located on a printed circuit board (PCB):

Creating a Near Field Lens

A near field lens must be created in a body because it is a solid (not a surface).


1. Click Near Field Lens (Optical Shape Design).


3. Click OK.

The near field lens component is added to the specification tree.

Parameters of a Near Field Lens

Type

Thickness

Thickness must be entered.

Output Radius

Output Radius must be entered.

Source

Select a point giving the position of the source (assumed punctual).

Support Plane

Select a plane giving the position of the input face of the near field lens.

Input Radius

Type a value for the internal radius of the near field lens on the support plane.

Depth

Type a value for the distance between the support plane and the inside of the component along the

revolution axis of the near field lens.

Draft Angle

Type a value for the angle between the revolution axis of the near field lens.

Support Thickness

Type a value for Support thickness.

Features of 88

The near field lens is assumed fastened on a support. The part of the component laying on the support

is a ring of thickness Support thickness.

Index

Type a value for the refractive index of the near field lens.

Thickness

Type a value for Thickness.

Let us consider a plane including the revolution axis of the near field lens. Thickness is the dimension

of the component along this axis.

Output Radius

Type a value for the radius of the near field lens on the output plane.

Focal

Type a value for the distance between the source and the top of the internal collimating surface.

Optical Lens

Optical Lens Overview

The optical lens is designed in order to create a lens made up of elementary pillows or prisms.

These elements are laid on a freeform support according to a rectangular grid, and shaped with

parameters specified by the user.

Pillow lens

Prism lens

Creating an Optical Lens

An optical lens must be created in a body because it is a solid (not a surface).

1. Click Optical Lens (Optical Shape Design).

2. Set the parameters see page 28 for each tab.

3. Click OK.


The optical lens component is added to the specification tree.

Parameters of an Optical Lens

Lens

Source

Punctual


This parameter is used to calculate the pillows/prisms according to the specifications.

Extended

Select a surface giving the emitting surface of the extended source.

In practical, this parameter can be the external surface of a filament, a cylinder, a LED's chip, or any

other surface.

Cylinder - P21W Chip - Luxeon Rebel

PL01

This parameter is required to display the source images.

Support

Freeform

The support of the pillows/prisms is a freeform surface.

Select the surface encompassing the exterior face of the lens for Support.

Features of 88

The freeform support is depicted in green - The pillows are laid on this surface

The elementary elements are always laid source-side of the support.

The support is depicted in green - The face of the support carrying the pillows depends

on the source position

Thickness

Type a value for the length used to define an intermediary surface carrying the elementary elements.

The freeform support is depicted in green and the intermediary surface in beige - Here the

thickess is 2mm

This intermediary surface is created by using the CATIA's offset command with a value Thickness on

the Support.

With Pillow type, the four corners of each external face of the pillows belong to the intermediary

surface.

With Prism type, at least one corner of the external face of the prism belong to the intermediary

surface.


The support is depicted in green and the surface with the offset in beige - On the left,

the four edges of the pillows belong to the surface with the offset - On the right, at

least one corner of the prisms belong to the surface with the offset

Index

Type a value for the refractive index of the lens.

Grid

The grid determines:

The size of the lens/elementary elements (Definition)

The distribution of elementary elements within the lens (Type)

Rectangular



of Axis.

Surface Size & Element Count

Type a value for:


X Count, Y Count: number of facets

Surface Size & Element Sizes

Type a value for:


X Size, Y Size: size of the facets

Features of 88

Target

Two ways are available to create the lens: either by using intensity or illuminance values.

This parameter impacts two things on the Prism tab:

The definition of the target viewer

Some parameters used to shape the elementary elements

Intensity

The target viewer displays pieces of information being intensity values.

This is useful when the area to light is defined angularly.


Axis

Orientation

Intensity target is not available yet.

Illuminance

The target viewer displays pieces of information being illuminance values.

This is useful when the area to light is a rectangle located at a known distance from the source.


Origin

Axis

Orientation



of Axis.

Origin

Select a point driving the origin of the grid and being the origin of the target viewer.


The real origin of the grid is the projection of Origin on a plane normal to Axis.

Axis

Select a line driving the plane of the grid. The grid is considered normal to Axis.

X direction can be changed by clicking Reverse Direction. In this case, X Start and X End are

interchanged.

Initial orientation on the left - Reverse Direction for Axis on the right - Axis is depicted in

green and Orientation in purple

The concavity/convexity of the pillows is indirectly changed by reversing Axis direction.

The support is depicted in green - Convex pillows on the left - Concave pillows on the right

Orientation

Select a line driving X for the grid. Y is automatically defined as perpendicular to X.

When clicking Reverse Direction, both X and Y directions are changed.

In this case, X Start and X End are interchanged, and Y Start and Y End are too.

Features of 88

Initial orientation on the left - Reverse Direction for Orientation on the right - Axis is depicted

in green and Orientation in purple

Use Support Axis parameter can be unticked in order to select a custom axis system for the target.

By default, the target axis of the support is used for the target (ticked case).

Prism

Pillow

Type a value for X Radius and Y Radius.

X Radius and Y Radius are the radii of curvature of the arcs of circle used to generate the pillows.


A click on the output face of a pillow displays its beam pattern (yellow) and its source images (yellow).

Note that on this current version of the feature, a single group of pillows exists, and thus all the pillows


The concavity/convexity of the pillows can be changed by clicking Reverse direction.

Influence of the Reverse direction button - Convex pillows on the left - Concave pillows on the

right

Prism

Illuminance Target

Type a value for X Position and Y Position.

X Position and Y Position are the coordinates of the point targeted by the prism on the plane defined by

Axis System.

Intensity Target

Type a value for X Angle and Y Angle.

X Angle and Y Angle are the angular values defining the angular direction targeted by the prism and

depending of Axis System.

Features of 88

A click on the output face of a prism displays its target specification (magenta), its beam pattern

(yellow) and its source images (yellow).

Note that on this current version of the feature, a single group of prisms exists, and thus all the prisms


Properties

The Properties panel gathers some display options customizing the viewer.

These options make easier the design process and provide a better understanding of the lens behavior.

To reach it, right-click inside the viewer and click Properties.

Source Images

This property is only available when the source has been defined as extended.

With this functionality, you can display some images of the source given by the selected

pillow(s)/prism(s).

These images give us information on the lens behavior inside the target.

Source Images with X Samples = 4 and Y Samples = 3

The source images are depicted as yellow polygons bordered by red lines.

The external face of the pillow is discretized according to X Samples and Y Samples giving particular

points.


The image of the extended source is then calculated for each of these particular points using the Snell's

law.

The source images are approximated because of the tessellation and the extended source convex hull

considered for the calculation.

When the Display boolean parameter is defined to true, the source images are displayed.

Type a value for:

X Samples: number of source images along the viewer's abscissa

Y Samples: number of source images along the viewer's ordinate

X and Y directions depend on Axis and orientation defined in the Target tab.

Beam Pattern

With this functionality, you can display the UV lines of the beam pattern for the selected prism(s).

These UV lines give us information on the shape of the beam pattern.

Beam Pattern with X Samples = 4 and Y Samples = 3

The UV lines are depicted as a network of yellow lines.

The external face of the prism is discretized according to X Samples and Y Samples giving a particular

network of lines on this face. The refraction of this network of lines by the prism is carried out using

the Snell's law from the source point.

The calculation of the beam pattern is calculated considering a punctual source. If an extended source

is used, the barycenter of the extended source is considered as the punctual source.

When the Display boolean parameter is defined to true, the UV lines are displayed.

Type a value for:

X Samples: number of UV lines along the viewer's abscissa

Y Samples: number of UV lines along the viewer's ordinate

X and Y directions depend on Axis and orientation defined in the Target tab.

Grid

WIth this functionality, you can display a grid inside the viewer.

This grid gives us information on the position of the target specification, on the size of the source

images and on the size of the beam pattern.

Features of 88

Grid with X Step = 5deg and Y Step = 5deg

The grid is depicted in a dark-colored green network of lines with a scaling.

This grid can be defined in intensity (cd) or in illuminance (lux) depending on the target type defined in

the Target tab.

When the Display boolean parameter is defined true, the grid is displayed.

Type a value for:

X Step: step of the grid along the viewer's abscissa

Y Step: step of the grid along the viewer's ordinate


Note that the cursor position is displayed in white on the bottom left of the viewer.

Light Guide

Light Guide Overview

The light guide is designed in order to have a pipe guiding the light while extracting a ratio of this light

in a specific direction using some prisms.

Light guide

Prisms of a light guide


Creating a Light Guide

A light guide must be created in a body because it is a solid (not a surface).

1. Click Light Guide (Optical Shape Design).

2. Set the parameters for each tab.

3. Click OK.

The light guide component is added to the specification tree.

Parameters of a Light Guide

Body

Body Type

None

The body of the light guide is not created. The prisms are alone.

The height of the prisms is defined in such a way to reach the guide curve.

Constant Profile

The body of the light guide is created using a profile.

Select a sketch as body profile for the light guide body.

Light guide profile

The profile is swept along the guide curve to obtain the light guide body.

Guide Curve

Select a curve as guide curve for the light guide body.

Reverse direction can be used to select on which extremity of the guide curve the source is located.

The position of the source impacts the following parameters from the Prisms tab: Start, End and

Length.

Light guide guide curve

The profile is swept along the guide curve to obtain the light guide body.

Optical Axis

Select a line giving the direction of the optical axis.

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Light guide optical axis

The optical axis is the main direction in which you expect the light to be extracted from the light guide

body by the prisms.

Prisms

Shape

Flat

Each prism is made of planar faces and all its edges are sharp.

Distances

Mode

Curvilinear

The distances related to the prisms are defined using the guide curve.

These parameters are curvilinear distances based on this curve: Start, End and Length.

Projection

The distances related to the prisms are defined using a projection plane.

This plane is used to define these distances: Start, End and Length.

These distances are defined as curvilinear distances based on the guide curve projected onto the

projection plane.

Select a line to define the plane of projection (plane normal to Projection line).

With this model, you can obtain style effects as a constant prism length when the light guide is seen in

a specific direction.


Start

Type a value to set the size of the prism-free zone at the beginning of the guide curve.

The beginning of the guide curve is the extremity where the source is located.

Prism-free zone in magenta - Guide curve in green - Start measure in green

The way used to define this parameter depends on Mode.

End

Type a value to set the size of the prism-free zone at the end of the guide curve.

The end of the guide curve is the extremity where the source is not located.

Prism-free zone in magenta - Guide curve in green - End measure in green


Length

Basic

Type a value for the length of the prisms.


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Offset

Basic

Type a value for the offset of the prisms.

Width

Basic

Type a value for the width of the prisms.

Start Angle

Basic

Type a value for the start angle of the prisms.

The start angle is the angle being source side.

End Angle

Basic

Type a value for the end angle of the prisms.

The end angle is the angle not being source side.


Orientation

Normal

All the prisms are oriented normally to the guide curve inside the plane normal to the optical axis.

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TUTORIALS

Creating a Smooth Reflector

You must have CATIA R19, with the S_SV5_OSD solution.

5 minutes

You are going to create a smooth reflector for headlamp using a parabolic surface.

First, dimensioning of the parabolic surface is carried out.

Then, the surface is split according to a specific profile.

Finally, the reflector is pierced in order to be able to receive a light bulb.

1. Copy and extract SV5_Tutorials_SmoothReflector_R19V11.zip

(http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_SmoothReflector_R19V1

1.zip) in a local directory.

2. Launch SPEOS CAA V5 Based and open the SmoothReflector.CATPart file.

3. Click Parabolic Surface (Optical Shape Design).

The Parabolic Surface Definition dialog box appears.

4. Set the following parameters:

PARAMETER DEFINITION

Type Focal

Focus Inputs/Focus

Axis Inputs/Axis

Orientation Inputs/Orientation

Focal 30mm

Size 200mm

Focus, Axis and Orientation can be selected with a click from the specification tree or the 3D view.

5. Click OK.

The parabolic surface is added to the specification tree.

6. Click Projection .

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_SmoothReflector_R19V11.zip

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_SmoothReflector_R19V11.zip


The Projection Definition dialog box appears.

7. Select the Along a direction type.

8. Select Cut Profile and Hole Profile as Projected.

Click to select several elements for Projected.

9. Select Parabolic Surface as Support.

10. Select Axis as Direction.

11. Check that Nearest solution is ticked.

12. Click OK.

You have now some contours to split the surface:

13. Define as work object the geometrical set Output.

14. Click Split .

The Split Definition dialog box appears.

15. Select Parabolic Surface as Element to cut.

16. Select the results of the projection as Cutting elements.

If the wrong side of the cutting element is deleted, click Other side to switch it.

17. Click OK.

The following surface is obtained:

18. Change Focal to 15mm.

This can be done from the specification tree or the definition dialog box.

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The surface is automatically updated:

Note that the commands Projection and Split have been automatically updated.

That is also the case for the other CATIA V5's commands.

Creating a Faceted Reflector


15 minutes

You are going to create a faceted reflector for taillamp using several optical surfaces with different

focal lengths.

Lesson 1: Creating the Reflector

On this lesson, creation of the optical surfaces is carried out.

Then, these surfaces are sewed and merged in a single surface, and split according to specified

geometrical elements.

1. Copy and extract SV5_Tutorials_FacetedReflector_R19V11.zip

(http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_FacetedReflector_R19V1

1.zip) in a local directory.

2. Duplicate the FacetedReflector.CATPart file and rename it into FacetedReflector_Optics.CATPart.

This new file is used all along this lesson to make the optical part of the reflector design.

3. Launch SPEOS CAA V5 Based and open the FacetedReflector_Optics.CATPart file.


The Optical Surface Definition dialog box appears.


1. Reflector tab


Source Type Punctual

Source Definition Inputs/Source Point

Support Type Parabolic Surface

Support Axis Inputs/Optical Axis

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_FacetedReflector_R19V11.zip

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_FacetedReflector_R19V11.zip


Support Orientation Inputs/Orientation

Grid Type Rectangular

Grid Definition Surface Size & Element Count

X Start -60mm

X End 0mm

Y Start -40mm

Y End 40mm

X Count 6

Y Count 8

2. Pillow tab


Type Freeform

X End 25deg

X Start -25deg

Y End 10deg

Y Start -10deg

Focal 30mm

X Center 0deg

Y Center 0deg

6. Click OK.

The surface is created and appears on the 3D view and on the specification tree.

Feel free to temporarily hide the geometrical set Inputs in order to better see the added elements.

To do so, select the geometrical set to hide, and click Hide/Show .

7. Create three other optical surfaces.

For each one, repeat steps 4 to 6 with the following parameters:

Second optical surface:

1. Reflector tab



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X Start 0mm

X End 20mm

Y Start -40mm

Y End 40mm

X Count 2

Y Count 8

2. Pillow tab


Type Freeform

X End 25deg

X Start -25deg

Y End 10deg

Y Start -10deg

Focal 28mm

X Center 0deg

Y Center 0deg

Third optical surface:

1. Reflector tab










X Start 20mm

X End 40mm

Y Start -40mm

Y End 40mm

X Count 2

Y Count 8

2. Pillow tab


Type Freeform

X End 25deg

X Start -25deg

Y End 10deg

Y Start -10deg

Focal 26mm

X Center 0deg

Y Center 0deg

Fourth optical surface:

1. Reflector tab







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X Start 40mm

X End 60mm

Y Start -40mm

Y End 40mm

X Count 2

Y Count 8

2. Pillow tab


Type Freeform

X End 25deg

X Start -25deg

Y End 10deg

Y Start -10deg

Focal 24mm

X Center 0deg

Y Center 0deg

The four optical surfaces are now created but there is some gaps between them. This is due to the

Focal values which differ from one optical surface to another.


To fix this, you are going to fill the gaps and then merge all the resulting surfaces.

8. Click Boundary .

The Boundary dialog box appears.

9. Select the first optical surface from the geometrical set Build as Surface Edge.

10. Select the top right corner from the 3D view as Limit1.

11. Repeat the operation with the top left corner to obtain Limit2.

Check that the boundary is well the right edge of the surface as expected, and not the

complementary part of the contour.

To switch it, click one of the red arrows on the right corners. The boundary is displayed in green on

the 3D view:

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12. Click OK.


The boundary is created.

13. Repeat the operation to define the left edge of the second optical surface.

This edge is the second boundary used to make the first sewing.

14. Click Blend .

The Blend dialog box appears.

15. Select respectively the first and the second Boundaries from the Build geometrical set as First

Curve and Second Curve.

16. Click OK.

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The blend is created and the gap has been filled.

17. Let us repeat two times the steps 8 to 16 in order to fill the two remaining gaps.

Once that all the gaps have been filled, the following surface is obtained.

You want to merge all the surfaces into a single reflector.

18. Click Join .

The Join dialog box appears.

19. Select the four optical surfaces and the three blends from the Build geometrical set as Elements To

Join.


20. Click OK.

You want to split the reflector according to a profile to make a circular hole in it.

21. Click Split .

The Split dialog box appears.

22. Select Join from the Build geometrical set as Element To Cut.

23. Select Reflector Profile Cutting Surface and Reflector Hole Cutting Surface from the Inputs

geometrical set as Cutting Elements.

Use the Other Side button after having selected a Cutting Element in order to choose the right part

of the reflector to remove.

Click OK.

You want to create the sides surface of the reflector shell.

24. Click Split .

The Split dialog box appears.

25. Select Reflector Profile Cutting Surface from the Inputs geometrical set as Element To Cut.

26. Select Skin Cutting Surface and Join respectively from the Inputs and Build geometrical sets as

Cutting Elements.

27. Click OK.

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You want to merge the reflector and the sides surface of the reflector shell in a single surface.

28. Define as work object the geometrical set Output.

29. Click Join .

The Join dialog box appears.

30. Select the two Split from the Build geometrical set as Elements To Join.

31. Click OK.


The following surface is obtained:

32. Rename the last Join into Reflector.

Lesson 2: Exchanging the Geometry

On this lesson, an export of the designed reflector is done allowing the mechanical designer to open

the created geometry without any specific SPEOS CAA V5 Based license.

1. Rename the file FacetedReflector.CATPart into FacetedReflector_Mechanics.CATPart.

This file receives the exported geometry and is be used after the export to make the mechanical

part of the reflector design.

2. Open both FacetedReflector_Optics.CATPart and FacetedReflector_Mechanics.CATPart files in

SPEOS CAA V5 Based.

3. In the FacetedReflector_Optics.CATPart file, right-click on Reflector from the geometrical set Output

and click Copy.

4. In the FacetedReflector_Mechanics.CATPart file, right-click on the Output geometrical set and select

Paste Special.

The Paste Special dialog box appears.

5. Select As Result With Link.

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6. Click OK.

7. Save the modified file and close SPEOS CAA V5 Based.

8. Open the FacetedReflector_Mechanics.CATPart file in CATIA V5 without SPEOS.

At this point, notice that the geometry of the reflector has been exported for the mechanical

designer and can be opened without any SPEOS CAA V5 Based license.

Let us say now that a modification is carried out by the optical designer after the design, the

mechanical designer has to send back his file to the optical designer.

Then, the optical designer is going to update the exported geometry and send it back to the optical

designer.

9. Open again both FacetedReflector_Optics.CATPart and FacetedReflector_Mechanics.CATPart files in

SPEOS CAA V5 Based.

10. In the FacetedReflector_Optics.CATPart file, set Focal to 35mm for the first optical surface and save

the file.

In the file FacetedReflector_Mechanics.CATPart, notice that Surface.1 icon has changed (red

cross) because it needs an update.

11. Right-click on Surface.1 and select Local Update.

The geometry is updated:


12. Save the files and close SPEOS CAA V5 Based.

The optical designer has now made the changes and the file can be opened again by the

mechanical designer.

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13. Launch CATIA V5 without SPEOS and open the file FacetedReflector_Mechanics.CATPart.

Notice that the modification has well be made to the reflector, even when opening the file in CATIA

V5 without SPEOS.

Creating a LED Lens

You must have CATIA R19, with the S_SV5_OSD solution and S_SV5_LM2 or S_SV5_LM3 or

S_SV5_LM4 solution.

10 minutes

You are going to create a LED lens with a lens array using a near field lens and an optical surface.

Lesson 1: Creating the Near Field Lens

On this lesson, creation and setting of the near field lens is be carried out.

1. Copy and extract SV5_Tutorials_LED_Lens_R19V12.zip

(http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_LED_Lens_R19V12.zip)

in a local directory.

2. Launch SPEOS CAA V5 Based and open the LED_Lens.CATProduct file.

3. Change the value of the Split Boolean parameter located inside the product’s set of parameter from

false to true.

This temporarily splits the half of both the crankcase and the printed circuit board to better set the

near field lens.

4. Double-click on the Near Field Lens part from the specification tree to activate it.

5. Right-click on the Near Field Lens body and select Define In Work Object.

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_LED_Lens_R19V12.zip


The near field lens is created in a body because it is a solid (not a surface).

6. Click Near Field Lens (Optical Shape Design).

The Near Field Lens Definition box appears.



Type Output Radius

Source Near Field Lens part/Inputs/Source

Support Plane Near Field Lens

part/Inputs/Support Plane

Input Radius 4mm

Depth 3mm

Draft Angle 5deg

Support Thickness 5mm

Index 1.49

Output Radius 20mm

8. Click OK.

The feature is created and appears in the 3D view and on the specification tree.

A Plexiglass material with appropriate Optical Properties has ever been applied.

9. Now that the near field lens is correctly positioned, set back the value of the Split Boolean

parameter to false.

The geometries having been set back to normal, all is now ready for the simulation stage.

Lesson 2: Running Interactive and Direct Simulations

On this lesson, an interactive simulation is made to check the optical behavior of the lens, and intensity

sensors are used to characterize the output light beam.

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1. Double-click on the interactive simulation named LM1 from the SPEOS specification tree.

2. Click the Geometries field.

3. Click the Near Field Lens body from the specification tree (Near Field Lens part).

4. Click OK.

The near field lens is now taken into account by LM1.

5. Right-click on the LM1 interactive simulation and select Hide/Show to display the ray tracing in the

3D view.

The light coming from the source point is well collimated after having passed through the near field

lens.

6. Repeat step 5 to hide the ray tracing.

7. Repeat steps 1 to 4 with the LM2.WithNFL direct simulation.

The near field lens is now taken into account by LM2.WithNFL.

The simulation parameters (tessellation) and the sensors parameters (sampling) have ever been

defined.

8. Select both LM2.WithoutNFL and LM2.WithNFL direct simulations from the SPEOS specification tree.

9. Click Local Update .

The direct simulations are running. It should take a few minutes for each simulation.


10. When the processing is complete, the results appear on the SPEOS specification tree under their

respective direct simulation.

The sensors used being intensity sensors, the simulation results are XMP files.

11. Right-click the direct simulation named LM2.WithoutNFL and select Hide/Show in order to unhide

the simulation result in the 3D view.

The simulation result is hiding the geometry. Let us make it transparent.

12. Right-click the XMP file from the direct simulation named LM2.WithoutNFL and click Properties.

13. Set the value 128 for Transparency by moving the slider.

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14. Click OK.

Both geometry and simulation result are now visible simultaneously.

This can also be done using the Graphic Properties toolbar and setting the Opacity value to 50%.

15. Do the same to make all the other results transparent.

16. Open the XMP files named LED_Lens.LM2.WithoutNFL.Conoscopic90deg.xmp and

LED_Lens.LM2.WithNFL.Conoscopic90deg.xmp.

Without Near Field Lens With Near Field Lens

You observe that the light is angularly more concentrated when the near field lens is used.

Let us characterize in details the performance of this lens.

Lesson 3: Measuring of Angular Aperture

On this lesson, the beam angular aperture is evaluated using the Surface / Section tool.

1. Double-click the LED_Lens.LM2.WithNFL.Conoscopic5deg.xmp result from the SPEOS specification

tree.

The Extended Map is displayed.

A smaller intensity sensor has been defined to use its whole area and thus optimize the angular

aperture measurement.

2. Click Surface / Section .

The Surface / Section dialog box appears.

3. Select User line as Section.

The Section dialog box appears.


4. Define a line passing by the center of the map and covering its whole area by dragging the line

extremities.

5. The Section dialog box including the profile is displayed.

Enlarge this dialog box by drag-and-dropping it from a corner to better visualize the maximum

value.

6. Evaluate the FWHM value of the intensity profile.

The Full Width at Half Maximum (FWHM

(http://en.wikipedia.org/wiki/Full_width_at_half_maximum)) of the intensity profile is the angular

range defined with the extreme values of angles at which the intensity is equal to half its maximum

value.

A beam angular aperture of approximately 4 degrees should be found.

Lesson 4: Measuring of Efficiency

On this lesson, the efficiency of the lens is measured using SPEOS measures.

1. Click Measure (Light Modeling).

2. Select the LED_Lens.LM2.WithoutNFL.Conoscopic90deg.xmp result from the SPEOS specification

tree.

3. Select Surface.

4. Set the other parameters as following:


Phi Max 360deg

Phi Min 0deg

http://en.wikipedia.org/wiki/Full_width_at_half_maximum

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Theta Max 90edg

Theta Min 0deg

5. Click Preview.

6. Tick Flux.

7. Click OK.

The Measures is added to the SPEOS specification tree.

8. Rename the Measure into Measure.WithoutNFL.

9. Repeat the steps 1 to 8 in order to create another measure from the

LED_Lens.LM2.WithNFL.Conoscopic90deg.xmp result.

10. Rename the Measure into Measure.WithNFL.

11. Right-click on the Efficiency ratio parameter located inside the product’s set of parameter.

12. Select Efficiency object and click Edit formula… .

The Formula Editor dialog box appears.

13. Enter `SPEOS CAA V5 Based\Measures\Measure.WithNFL\Flux` /`SPEOS CAA V5

Based\Measures\Measure.WithoutNFL\Flux` as Formula.

The Measures outputs Flux can be retrieved from the SPEOS specification tree from the Formula

Editor.

14. Click OK.

The Efficiency parameter is calculated and its value is updated on the specification tree.

An Efficiency of around 91 percent should be found, which means that there is less than ten

percent of stray light on this system.

If the simulation results change, the Measures need to be uploaded (if not done automatically) and

the parameter is updated.

Lesson 5: Adding the Lens Array

On this lesson, a lens array is added on the output face of the lens using an optical surface.

1. Right-click the LM2.WithNFL direct simulation and select Hide/Show in order to hide the simulation

result in the 3D view.

2. Double-click the Near Field Lens part.

3. Right-click the Lens Array geometrical set and select Define in Work Object.


The Optical Surface Definition box appears.


1. Reflector tab



Source Definition Inputs/Source

Support Type Freeform


Support Lens Array/OutputPlane




X Start -20mm

X End 20mm

Y Start -20mm

Y End 20mm

X Count 15

Y Count 15

2. Target tab


Type Intensity

Axis References/X

Orientation References/Z

3. Pillow tab


Type Radii

X Radius 5mm

Y Radius 2.5mm

6. Click OK.

The surface is created and appears on the 3D view and on the specification tree.

7. Right-click the Lens Array body and select Define in Work Object.

8. Reach the Mechanical Design Part Design workbench.

9. Click Pad .

The Pad Definition box appears.

Click More.



First Limit Type Dimension

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Length 0mm

Profile/Surface Selection

Select the external face of the

near field lens from the 3D

view

Direction Reference References/X

Second Limit Type Up to surface

Second Limit Limit Lens Array/Optical Surface.1

A Plexiglass material with appropriate Optical Properties has ever been applied.

11. Right-click the Lens Array geometrical set and select Hide/Show in order to hide the optical surface.

The LED lens is now complete.

Lesson 6: Analyzing the Influence of the Lens Array

On this lesson, the influence of the lens array is studied and compared to the initial version of the lens.

1. Double-click on the direct simulation named LM2.WithNFL&LensArray from the SPEOS specification

tree.

2. Click the Geometries field.

3. Click the Near Field Lens and the Lens Array bodies (Near Field Lens part) from the specification

tree.

4. Click OK.

Both parts of the LED lens are now taken into account by LM2.WithNFL&LensArray.

5. Select the LM2.WithNFL&LensArray direct simulation from the SPEOS specification tree.

6. Click Local Update .

The direct simulation is running. It should take a few minutes.


7. Open the XMP result of the LM2.WithNFL&LensArray simulation by double-clicking it on the

specification tree.

You have the shape of the output beam but no marks to measure its size. Let us add some

grading.

8. Right-click on the result and select Show ruler.

9. Right-click on the result and select Show primary grid.

10. Right-click on the result and select Grid Parameters.

11. Select User and set 5deg for both x and y primary steps.

The size of the beam can now be approximated: 40deg horizontally and 20deg vertically.

12. Click Save in Virtual Photometric Lab to takes into account the modifications of the display

parameters.

13. Repeat the steps 7 to 12 with the LED_Lens.LM2.WithNFL.XMeridianYParallel.xmp result.

14. Open simultaneously the LED_Lens.LM2.WithNFL.XMeridianYParallel.xmp and the

LED_Lens.LM2.WithNFL&LensArray.XMeridianYParallel.xmp results.

Both results can be compared to understand the influence of the lens array.

LED Lens without Lens Array LED Lens with Lens Array

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WIth the lens array, you can shape the output beam and to control its size depending on the

parameters of the pillows.

Creating a Light Guide


5 minutes

You are going to create a light guide.

1. Copy and extract SV5_Tutorials_LightGuide_R19V13.zip

(http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_LightGuide_R19V13.zip)

in a local directory.

2. Launch SPEOS CAA V5 Based and open the LightGuide.CATPart file.

3. Right-click on the Light Guide body and select Define In Work Object.

The light guide is created in a body because it is a solid (not a surface).

4. Click Light Guide (Optical Shape Design).

The Light Guide Definition dialog box appears.


1. Body tab


Body Type Constant Profile

Body Type Input Inputs/Profile

Guide Curve Inputs/Guide Curve

Optical Axis Inputs/Optical Axis

2. Prisms tab


Shape Flat

Distances/Mode Projection

Distances/Mode/Input Inputs/Optical Axis

Distances/Start 10mm

Distances/End 5mm

Distances/Length 1mm

Offset 5mm

Width 5mm

Start Angle 87deg

End Angle 10deg

Orientation Normal

6. Click Preview.

You notice that the prisms have not been set on the right side of the body guide.

7. Click Reverse Direction for Optical Axis.

Now the prisms are correctly set.

8. Check that a Reverse Direction is not needed for Guide Curve.

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_LightGuide_R19V13.zip


You are checking that the guide curve orientation is matching to the source position.

To do so, set temporarily Start to null and watch which side is impacted by this change.

This side is the side where the source is set and is linked to Start Angle.

9. Click OK.

The feature is created and appears in the 3D view and on the specification tree.

A Polycarbonate material with appropriate Optical Properties has ever been applied.

Creating a High Beam Reflector


45 minutes

You are going to create a European high beam reflector using some optical surface features.

This reflector is based on the ECE R113 regulation (class E - primary).

Then, you are going to measure the photometry and check that the regulation is passed.

Lesson 1: Opening Project

1. Copy and extract SV5_Tutorials_ECEHighBeamReflector_R19V13.zip

(http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_ECEHighBeamReflector_

R19V13.zip) in a local directory.

2. Launch SPEOS CAA V5 Based.

3. Open the ECEHighBeamReflector.CATProduct file.

Lesson 2: Creating the Reflector

1. Double-click the ECE High Beam Reflector part from CATIA's tree.

2. Right-click on the Segments geometrical set and select Define In Work Object.

The optical surfaces are created in a geometrical set because they are surfaces (not solids).


The Optical Surface Definition dialog box appears.


1. Reflector tab


Source Type Extended

Source Definition Inputs/Cylinder

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_ECEHighBeamReflector_R19V13.zip

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_ECEHighBeamReflector_R19V13.zip

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Grid Definition Surface Size & Element

Count

X Start -60mm

X End -45mm

Y Start 0mm

Y End 60mm

X Count 1

Y Count 1

2. Pillow tab


Type Freeform

X Start -3deg

X End 3deg

Y Start -1deg

Y End 1deg

Focal 22mm

X Center 0deg

Y Center 0deg

5. Click OK.

The first segment is created and appears on the 3D view and on the specification tree.


6. Create the 15 other segments by repeating steps 4 to 6 in order to have a rectangular grid such as

below.

An optical surface has to be created for each segment because groups management is not yet

supported.

A way to save time is to copy/paste an ever-defined optical surface and change its parameters

afterwards.

The position of the segments has to be changed using the X Start, X End, Y Start and Y End

parameters from the Reflector tab using the dimensions on the picture below.

The beam specification for each segment has to follow the color code on the picture above with the

next values for the Pillow tab.

1. Green segments


X Start -3deg

X End 3deg

Y Start -1deg

Y End 1deg

2. Blue segments


X Start -6deg

X End 6deg

Y Start -2deg

Y End 2deg

3. Orange segments


X Start -9deg

X End 9deg

Y Start -3deg

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Y End 3deg

4. Magenta segments


X Start -12deg

X End 12deg

Y Start -4deg

Y End 4deg

All the segments of the reflector have been created.

Lesson 3: Cutting the Reflector

1. Right-click on the Reflector geometrical set and select Define In Work Object.

2. Click Join (Operations).

3. For the Elements To Join parameter, select all the optical surfaces features inside the Segments

geometrical set by clicking them from CATIA's tree.

4. Untick Check connexity.

5. Click OK.

6. Click Split (Operations).

7. Unhide Bulb Hole Cutting Cylinder and Reflector Cut Cutting Cylinder features from the Inputs

geometrical set.

8. For the Elements to cut parameter, select the Join feature inside the Reflector geometrical set by

clicking it from CATIA's tree.

9. For the Cutting elements parameter, select the Bulb Hole Cutting Cylinder feature inside the Inputs

geometrical set by clicking it from CATIA's tree.

If a warning saying "Split or Trim operator: Warning : Some cells position is ambiguous. Use

Keep/Remove option or modify input bodies contact." appears, click Close.


Notice that the right side of the reflector has been deleted.

10. Repeat the steps 9 to 10 in order to add the Reflector Cut Cutting Cylinder feature into the Cutting

elements parameter.



This time, notice that the wrong side of the reflector has been deleted.

11. Click Other side.



12. Click OK.

A Multi-Result Management dialog box appears.

13. Tick keep all the sub-elements.

14. Click OK.

The reflector is finally cut to host the bulb and has the right external profile.

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Lesson 4: Applying Material to the Reflector

1. Select the Split feature inside the Reflector geometrical set.

2. Click Apply Material (Optical Properties).

3. From the Library dialog box, in the Other tab, select the Mirror material.

4. Click OK.

The material appears in CATIA's tree, under the Split feature.

Lesson 5: Adding Optical Properties to Materials

1. From CATIA's tree, right-click Mirror, and then select Properties.

2. Click More... to edit the Optical Properties tab.

If a warning saying "New applicative properties have been added and will be saved with the current

material" appears, click OK.

3. In the Volume optical properties (VOP) group box, select Opaque from the Type list.

4. In the Surface optical properties (SOP) group box, select Mirror from the Type list.

5. In the Surface optical properties (SOP) group box, set 80% for Reflectance.

6. Click OK.

Lesson 6: Creating an Intensity Sensor

1. Double-click the Tutorials > ECE High Beam Reflector product from CATIA's tree.

2. Click Start, Analysis & Simulation, Light Modeling if the Light Modeling workbench is not yet

launched.

3. Click Intensity Sensor (Sensor).



Type Photometric

Axis System/Origin Sensor/Sensor Origin

Axis System/X Direction Sensor/Sensor X

Axis System/Y Direction Sensor/Sensor Y

X/Start /

X/End 18deg

X/Sampling 720



X/Mirrored Extent true

Y/Start /

Y/End 8deg

Y/Sampling 320

Y/Mirrored Extent true

Orientation X As Meridian, Y As Parallel

5. Click More>>.

6. Choose Face for Data separated by layer.

7. Make the Segments geometrical set hidden and the Reflector geometrical set visible.

8. Select each split segments for the Face filtering parameter by clicking them from the 3D view.

9. Click OK.

The irradiance sensor appears in the specification tree and in the 3D view.

Lesson 7: Creating a Direct Simulation

1. Click Direct Simulation (Simulations).

2. In the Sources box, select the H7 H8 H9 H11.Source source from the Lib_H9 - 12V - 65W product.

3. In the Geometries box, select the Split feature from the Reflector geometrical set.

4. In the Sensors box, select the intensity sensor named Intensity sensor.1 from the CATIA's tree.

5. Type 2e8 for Number of rays.

6. In the Geometries box, click on the Split feature.

7. Tick Preview meshing.

The tessellation of the reflector is displayed.

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We notice that the meshes are too according to the size of the segments.

8. Click OK.

The direct simulation appears in the specification tree.

9. Right-click on Direct simulation.1.

10. Click Properties.

11. Click More....

12. Go to the Simulation tab.

13. Set Tessellation step mode to Fixed.

14. Set Tessellation step value to 3mm.

15. Repeat steps 6 to 8 to check the tessellation of the reflector again.

We notice now that the meshes are fine enough according to the size of the segments.

Lesson 8: Running the Direct Simulation

1. Select Direct simulation.1 from the specification tree.

2. Click Local Update (Update).

The simulation is running.

It longs approximatively 2 hours on a Intel® Xeon® E5620 2,40Ghz (2 processors).


3. When the simulation is done, the result appears in the 3D view.

4. Expand the Direct simulation.1 node to access to the simulation results from CATIA's tree.

5. Double-click ECEHighBeamReflector.Direct simulation.1.Intensity sensor.1.xmp from the CATIA's

tree.

6. Click .

7. Tick IsoCurve.

8. Click Save.

9. Close Virtual Photometric Lab.

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Lesson 9: Creating Measures

1. Click Measure (Light Modeling).

2. Select the result of the direct simulation from the SPEOS specification tree.

3. Set the parameters as following:


Type Point

Inputs/X 0deg

Inputs/Y 0deg

Outputs Value

Once that the type has been selected, click Preview to make the Outputs appear.

4. Click OK.

The Measures is added to the SPEOS specification tree.

5. Rename the Measure into I_HV.

6. Repeat the steps 1 to 5 to create the other measures with the following parameters:

1. I_H-3R


Type Point

Inputs/X 3deg

Inputs/Y 0deg

Outputs Value

2. I_H-3L


Type Point

Inputs/X -3deg

Inputs/Y 0deg

Outputs Value

3. I_H-6R


Type Point

Inputs/X 6deg

Inputs/Y 0deg

Outputs Value

4. I_H-6L


Type Point

Inputs/X -6deg

Inputs/Y 0deg

Outputs Value


5. I_H-9R


Type Point

Inputs/X 9deg

Inputs/Y 0deg

Outputs Value

6. I_H-9L


Type Point

Inputs/X -9deg

Inputs/Y 0deg

Outputs Value

7. I_H-12R


Type Point

Inputs/X 12deg

Inputs/Y 0deg

Outputs Value

8. I_H-12L


Type Point

Inputs/X -12deg

Inputs/Y 0deg

Outputs Value

9. I_2U-V


Type Point

Inputs/X 0deg

Inputs/Y 2deg

Outputs Value

10. I_4D-V


Type Point

Inputs/X 0deg

Inputs/Y -4deg

Outputs Value

11. I_max


Type Surface/Rectang

le

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Center X 0deg

Center Y 0deg

Height 40deg

Width 80deg

Outputs Max

All the measures have been created. Each one can be expanded from CATIA's tree to reveal its

outputs values.

Lesson 10: Checking the Regulation

1. Click Start, Knowledgeware, Knowledge Advisor.

2. Click Check (Reactive features).

3. Type I_HV as Name of Check.

4. Click OK.


5. Type (`SPEOS CAA V5 Based\Measures\I_HV\Value`>= 0.8*`SPEOS CAA V5

Based\Measures\I_max\Max` )and (`SPEOS CAA V5 Based\Measures\I_HV\Value`>= 37500cd )

as condition to check.

6. Click OK.

7. Repeat the steps 2 to 6 with the following parameters for the other checks:

1. I_H-3R


Condition `SPEOS CAA V5 Based\Measures\I_H-3R\Value` >= 18776cd

2. I_H-3L


Condition `SPEOS CAA V5 Based\Measures\I_H-3L\Value` >= 18776cd

3. I_H-6R



4. I_H-6L



5. I_H-9R



6. I_H-9L

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7. I_H-12R



8. I_H-12L



9. I_2U-V


Condition `SPEOS CAA V5 Based\Measures\I_2U-V\Value` >=1876cd

10. I_4D-V


Condition `SPEOS CAA V5 Based\Measures\I_4D-V\Value` <= `SPEOS CAA V5

Based\Measures\I_max\Max`

11. I_max


Condition (`SPEOS CAA V5 Based\Measures\I_max\Max` <= 112500cd) and

(`SPEOS CAA V5 Based\Measures\I_max\Max`>= 43750cd )

8. All the checks have been created and appears on CATIA's tree inside the Relations node.

Note that they all appear in green meaning that the ECE R113 regulation is passed.

Transferring Geometrical Data


5 minutes

CATParts including some OSD features cannot be opened with CATIA V5 alone (without SPEOS).

You are going to see how to bypass this limitation and be able to open and use such OSD features.

For more details about OSD features opening and usability with CATIA V5 alone, you can view OSD

Features see page 6.


1. Copy and extract SV5_Tutorials_Geometrical_Data_Transfer_R19V12.zip

(http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_Geometrical_Data_Trans

fer_R19V12.zip) in a local directory.

2. Launch SPEOS CAA V5 Based and open the ParabolicSurface.CATPart file.

Remember the icon of the parabolic surface (original OSD feature).

3. Click File.

4. Click Save As....

5. Select model for Save as type.

6. Click Save.

You have exported the initial CATPart file in the model format. This temporary file is only used to

achieve this tutorial.

7. Open the just created model file.

8. Right-click on the parabolic surface from the 3D view.

9. Select Copy.

10. Right-click on the Parabolic Surface geometrical set from the CATPart file.

11. Select Paste.

You have imported the parabolic surface from the model file to the CATPart file.

12. Right-click on the Parabolic Surface feature from the Parabolic Surface geometrical set.

13. Click Delete.

14. Click OK.

Notice that the icon of the feature has changed. This icon is used for geometry pasted without any

links.

15. Click File.

16. Click Save.

17. Close SPEOS CAA V5 Based.

18. Launch CATIA V5 without SPEOS.

19. Open the ParabolicSurface.CATPart file.

Notice that the file opens correctly and that the parabolic surface is fully usable.

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_Geometrical_Data_Transfer_R19V12.zip

http://portal.optis-world.com/documentation/UG/SV5/ZIP/SV5_Tutorials_Geometrical_Data_Transfer_R19V12.zip

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INDEX

B

Beam Pattern • 22, 36

Body • 38

C

Changing the User Interface Language • 5

Collimating Surface • 12

Collimating Surface Overview • 12

Creating a Collimating Surface • 12

Creating a Faceted Reflector • 45

Creating a High Beam Reflector • 70

Creating a LED Lens • 59

Creating a Light Guide • 38, 69

Creating a Near Field Lens • 25

Creating a Parabolic Surface • 7

Creating a Smooth Reflector • 43

Creating an Elliptical Surface • 10

Creating an Optical Lens • 27

Creating an Optical Surface • 14

E

Elliptical Surface • 10

Elliptical Surface Overview • 10

Extended • 14, 28

F

Features • 83

FEATURES • 6

Freeform • 16, 18, 28

G

GETTING STARTED • 5

Grid • 17, 23, 30, 36

I

Illuminance • 17, 31

Intensity • 17, 31

L

Lens • 28

Lesson 1

Creating the Near Field Lens • 59

Creating the Reflector • 45

Opening Project • 70

Lesson 10

Checking the Regulation • 81

Lesson 2

Creating the Reflector • 70

Exchanging the Geometry • 56

Running Interactive and Direct Simulations • 60

Lesson 3

Cutting the Reflector • 73

Measuring of Angular Aperture • 63

Lesson 4

Applying Material to the Reflector • 75

Measuring of Efficiency • 64

Lesson 5

Adding Optical Properties to Materials • 75

Adding the Lens Array • 65

Lesson 6

Analyzing the Influence of the Lens Array • 67

Creating an Intensity Sensor • 75

Lesson 7

Creating a Direct Simulation • 76

Lesson 8

Running the Direct Simulation • 77

Lesson 9

Creating Measures • 79

Light Guide • 37

Light Guide Overview • 37

M

Managing Documents • 5

Manufacturing • 23

N

Near Field Lens • 25

Near Field Lens Overview • 25

O

Optical Lens • 27

Optical Lens Overview • 27

Optical Surface • 14

Optical Surface Overview • 14

P

Parabolic Surface • 7, 15

Parabolic Surface Overview • 7

Parameters of a Collimating Surface • 12, 13

Parameters of a Light Guide • 38

Parameters of a Near Field Lens • 26

Parameters of a Parabolic Surface • 7, 8

Parameters of a Pillow Surface • 14

Parameters of an Elliptical Surface • 10, 11

Parameters of an Optical Lens • 27, 28

Pillow • 18, 33

Prism • 33, 34

Prisms • 39

Properties • 21, 35

Punctual • 14, 28

R

Radii • 19

Rectangular • 17, 30

Reflector • 14

S

Sewing • 23

Sharp Cutoff • 20

Source • 14, 28

Source Images • 35

Sources Images • 21

Support • 15, 28

Surface Size & Element Count • 17, 30

Surface Size & Element Sizes • 17, 30

T

Target • 17, 31

Transferring Geometrical Data • 6, 83

TUTORIALS • 43