LED B

oard

LED

Cylinder Lens

LENS

Cylinder Lens

Target

Sensor Board

LED BoardLED

CIS Illumination Guide

3

Index Diffuse Light – Single Sided

LED B

oard

LED

Cylinder Lens

LENS

Target

Sensor Board Diffuse Light – Single Sided 3

Diffuse Light – Double Sided 4

High DOI (Depth of Intensity) # 1 5

High DOI (Depth of Intensity) # 2 6

Grazing Light – Single Sided 7

Grazing Light – Double Sided & Muxed 8

Coaxial Light 9

Combined Diffuse + Coaxial Light 10

Goniometric Light 11

Working with total reflection 12

Coupling light INTO the object 13

Working with Plain Backlight 14

Dealing with Watermarks 15

Working With Polarized Backlight 16

Working with Parallelized Backlight 17

Fluorescence setup 18

Triangulation 19

Burgwallstraße 14 · 86316 Friedberg · Germany

Phone: +49 (0)821 455 553 0 · Fax: +49 (0)821 455 553 20

e-mail: info@tichawa.de · www.tichawa-vision.com

© www.tichawa-vision.com

Layout: www.morawetz-grafik.de

All rigths reserved bei Tichawa Vision GmbH

Impressum:Recommended for • Paper

• Cardboard

4 5

Diffuse Light – Double Sided

Sensor Board

LED

LEDLED B

oard

LED Board

LENS

LED B

oard

LED

Cylinder Lens

LENS

Cylinder Lens

Target

Sensor Board

LED BoardLED

High DOI (Depth of Intensity) # 1

Recommended for • Paper • Cardboard

Recommended for • High DOI (Depth of Intensity) Applications i. e. Objects with varying Height

6 7

High DOI (Depth of Intensity) # 2

Cylinder Lens

LED Board

LED

LENS

Sensor Board

Mirror

Grazing Light – Single Sided

LED B

oard

Sensor Board

LENS

Recommended for • High DOI applications Recommended for • Embossed Text (e. g. Credit Cards) • Coins

8 9

Grazing Light – Double Sided & Muxed

LENS

Sensor Board

Cylinder Lens

LED Board

LED

LED Board

LED

Cylinder Lens

MirrorMirror

Coaxial Light

LED

Boa

rd

LED

LENS

Sensor Board

Light Guide

Mirror

Target

Recommended for • Embossed Text (e. g. Credit Cards) • Coins

Recommended for • Glossy Material • Metal • Metal/Plastic Compounds,

e. g. Printed Circuit Boards

10 11

Combined Diffuse + Coaxial Light Goniometric Light

Cylinder Lens

LENS

Sensor Board

LED B

oard

LED

Target

20°

0°10

°

0°

10°

20°

Mov

ing S

tage 0°

0°

LED B

oard

Cylinder Lens

LENS Cylinder Lens

Target

Sensor Board

LED

Board

LED

Light GuideMirror

LED B

oard

LED

LED BoardLED

Recommended for • Processing varying stuff • Prototyping

12 13

Working with total reflection

Cylinder Lens

LENS

LED B

oard

LED

LE

NS

Sensor Board

HolograficDiffuser

Target

Recommended for • Scratches on Glass • Scratches on Metal

Coupling Light into the Object

LED

Boa

rd

LED

LENS

Sensor Board

Transparent Target

LED

Boa

rd

LED

Recommended for • transparent media • bubble detection • inclusion detection

14 15

Sensor Board

Watermark Metal Stripe

LENS

Sensor Board

Watermark Metal Stripe

LENS

Working with Plain Backlight Dealing with Watermarks

Cylinder Lens

LED Board

LED

LENS

Sensor Board

Holografic Diffusor

Target

Recommended for

• pinholes in opaque material • transparent stuff • translucent stuff • watermarks • metal stripes in paper

Suppressing WatermarksEnhancing Watermarks

Illuminating with the same Intensity from front and rear side will make Watermarks and Security Features disappear

16 17

Working With Polarized Backlight

Cylinder Lens

LED Board

LED

LENS

Sensor Board

Glass

Polarizer

Diffuser

Recommended for

• detecting stress in glass • detecting stress in transparent plastics

Working with Parallelized Backlight

Sensor Board

Sensor

StraylightBlocking Filter

parallel Laser Beam

Recommended for • transparent media where high DOF (Depth of Field) is required • Crankshaft inspection

18 19

Sensor Board

LED

Point Source

Shadow

Sensor Board

LED

Point Source

Shadows

Cross Section

Operating Principle

VIS blocking filter

LENS

Sensor Board

LENS

LED B

oard

UV LED

UV blocking filter

Target

Fluorescence Setup Triangulation

Recommended for • crack detection in steel (in magnetic field) • general fluorescence applications

20

LED 1

Sensor Line

Target

Sensor Line

LED 2

Target

Sensor Line

LED 3

Target

RGB Data Output

Shadow

Shadow

Shadow

Triangulation – Timing Sequence

Running a CIS with Triangulation, 3 Flashes, 3 Shadow Images, mapped onto RGB Image