luminaries and design guidlines

8/10/2019 Luminaries and Design Guidlines

1/20

Types of Light SourcesTypes of Light Sources

IncandescentIncandescent

DischargeDischarge


2/20

Advantages of Incandescent LampsAdvantages of Incandescent Lamps Simple to use - direct connection into socket.

Lowest initial lamp cost.

Immediate starting & re-starting.

Excellent optical control.

Easiest to dim.

Wide design flexibility !ariety in style" output" color.

#eet nearly e$ery need.

%utput unaffected by operation in $aried temperature ranges.

$ailable in wattage ratings from '( W to )(( W.


3/20

Sensiti$e to s*ock and $ibration.

+ig* o$erall operating cost - low efficacy and s*ort life.

Sensiti$e to $oltage $ariations.

%perating ),(! lamp on ))! -/0 reduces wattage by

'(/" reduces lig*t output by )(/ and increases lamp life by

1(/.

%perating ),(! lamp on )2,! 3/0 increases wattage by

'(/"increases lig*t output by ))/ and decreases lamp life

by 1(/.

Disadvantages of Incandescent LampsDisadvantages of Incandescent Lamps


4/20

Halogen LampsHalogen Lamps

Special kind of incandescent lamp

#ore consistent lig*t output t*an incandescent lamp

Longer life

Structure of a Halogen LampStructure of a Halogen Lamp Life of a Halogen LampLife of a Halogen Lamp


5/20

Types of Halogen LampsTypes of Halogen Lamps


6/20

Advantages of Halogen LampsAdvantages of Halogen Lamps

4ro$ide excellent color rendering.

Lig*t w*iter t*an t*at of con$entional incandescent lamps.

5ontinuous spectrum wit* emp*asis on warm colors.

6nmatc*ed in precise lig*t control from small" lig*tweig*tluminaires.

Easy to install.

7eli$er full lig*t output at t*e flick of a switc*.

8o warm-up re9uired.

Simple dimming control is possible.


7/20

Discharge LampsDischarge Lamps

:luorescent lamp

Structure of a Fluorescent LampStructure of a Fluorescent Lamp


8/20

Advantages of Fluorescent LampsAdvantages of Fluorescent Lamps

1-; times more efficient t*an incandescent lamps.

4ower consumption for e9ual lig*t output is less from an

incandescent lamp.

2 to '= times longer t*an incandescent lamp.

Lamps can be selected for desired color rendering purpose.

Low surface brig*tness permits better $isual comfort and

diffused lig*ting.

%ptional dimmable ballasts are a$ailable.

Lamp color does not significantly c*ange w*en dimmed.

4ower consumed is proportional to lig*t output.


9/20


10/20

High Intensity Discharge (HID) LampsHigh Intensity Discharge (HID) Lamps +ig* lumen output per watt

5ool color appearance

Long life and Low operating cost

Aypes #ercury !apor" #etal +alide

+ig* and Low 4ressure Sodium

Structure of a HID LampStructure of a HID Lamp Woring !rocess of a HID LampWoring !rocess of a HID Lamp


11/20

"ompact Fluorescent Lamps ("FL)"ompact Fluorescent Lamps ("FL) Efficient energy sa$ing lig*ting source

Long life and small si@e

Breater lumen output per watt but less *eat

Long life

#ariety in "FL Lamps#ariety in "FL Lamps


12/20

Light $mitting Diode (L$D)Light $mitting Diode (L$D)

Expected life of LE7 lamp C '"(("((( *ours

Excellent for rural *omes or cabins wit* solar lig*ting systems

?attery powered lig*t

:or permanent operations w*ere periodic bulb c*anges are

costly or a safety *a@ard

L$D LampL$D Lamp


13/20

"omparing Different Types of Lamps"omparing Different Types of Lamps

%seful Life

$fficacy

"olour &endering !roperties


14/20

S'%&"$ LIF$ (H'%&S)

Incandescent filament lamp * +

Tungsten Halogen lamp * +

,ercury lamp +- * +.-

,etal Halide /- * +-

High !ressure Sodium - * 0-

Lo1 !ressure Sodium /-

Fluorescents - * +-

"ompact Fluorescent Lamps - * +-


15/20

S'%&"$ LIF$ (H'%&S)

Incandescent filament Lamp

Tungsten Halogen lamp

,ercury lamp 0 * 00

,etal Halide /0 * 2

High !ressure Sodium ++ * 30

Lo1 !ressure Sodium

Daylight Fluorescent 34

5enon 40


16/20

What is Luminaire 6What is Luminaire 6

The Luminaire consists ofThe Luminaire consists of

LampLamp

Fitting to control andFitting to control and

direct the lamp outputdirect the lamp output

"ontrol gear lie 7allast"ontrol gear lie 7allast

,eans of fi8ing the,eans of fi8ing the

assem7lyassem7ly


17/20

Different Types of LightingDifferent Types of Lighting

9eneral Lighting9eneral Lighting

4ro$ides an area wit* o$erall illumination.

lso known as ambient lig*ting.

Lig*ting to replace sunlig*t. :undamental to a lig*ting plan.

Tas LightingTas Lighting+elps to perform specific tasks.

:ree of distracting glare and s*adows.

?rig*t enoug* to pre$ent eyestrain.


18/20

Different Types of LightingDifferent Types of Lighting

Accent LightingAccent Lightingdds drama by creating $isual interest.

6sed to *ig*lig*t paintings"

*ouseplants" sculpture.


19/20

Lighting Design FundamentalsLighting Design Fundamentals

Dnow t*e function and acti$ity of t*e space.

7etermine - 9uantity of lig*t" 9uality" brig*tness & direction.

#inimise colour distortion.

4ro$ide ambient illumination for general tasks in t*e space.

Aask illumination - local acti$ities & demanding tasks.

ccent illumination - *ig*lig*t obects of interest and guide

occupants.

ttain *ig*er 5olor


20/20

luminaries and design guidlines

Documents