Laboratorium voor Lichttechnologie Laboratory for light ... · Laboratorium voor Lichttechnologie...

Laboratorium voor Lichttechnologie

Laboratory for light and lighting

Limelette – April 19, 2007

Peter Hanselaer

Limelette, april 19, 2007

1997: 1e HOBU-call

Flemish District

Technical Universities

Short history

Applied Scientific Research


Staff

• Academic– Frédéric Leloup– Wouter Ryckaert– Peter Hanselaer– Antoon Van den Abeele– Guy Durinck– Mario Wyns (dept. Gent)

• Projects– Cathérine Lootens– Stefaan Forment– Steven Maes– Filip Vandeghinste– Sandra Herrebosch– Arno Keppens


Main research activities: photovoltaics

• Light trapping in crystalline Si solar cells and solar panels

• Stand alone systems

glass-EVA

air


Biflash (LEDs)

Solar Panel

Pedestrians: push the button

Supercapacitors replace the batteries!

Main research activities: photovoltaics


Main research activities: LEDs

• Traffic lights and Variable Message Signs (CEN TC 226; EN 12966)

• Decorative and indicative lighting (additive mixing)

• LEDnet: the development of the next generation LED lighting systems: reflector and lens design

• PhD: LED’s and General Lighting (Power LEDs, Multiple LED packages)

• Colour rendering (TC 1-69)


Main research activities: Appearance

• Optical characterization of materials versus visual appearance (CIE TC 1-65)

• Filter design for HID luminaires (shop lighting)

• PhD: Gloss (BRDF, photometric/colorimetric camera)

• Appearance of PU dashboards

0

5

10

15

20

25

380 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780

golflengte (nm)

R (%

)

SPIN, matte tegelSPIN, glanzende tegelSPEX, matte tegelSPEX, glanzende tegelSpeculaire comp. matSpec. comp. glanzend


Main research activities: Efficient Lighting

• Greenlight endorser; Local initiative “Groen Licht Vlaanderen”

• Stimulate energy efficient lighting: information, studying new technologies (low power HID, LEDs, holographic diffusers), support institutes and government, . . .

• Efficient Lighting in Shops (cold environments)

• CFL: start-up times and colour shift, colour rendering

20

30

40

50

60

70

80

90

100

110

-20 -10 0 10 20 30 40 50 60 70 80 90 100Omgevingstemperatuur [°C]

Rela

tieve

lum

en o

utpu

t [%

]

T5 met amalgaam

T5


Measurement Facilities

Spectral Reflection en Transmission

Integrating sphere

Spectrograph/CCD spectrum and colour (CCT)

0

300

600

900

1200

1500

350 400 450 500 550 600 650 700 750

Golflengte (nm)

Spec

tral

e st

ralin

gsin

tens

iteit

(mW

/sr.n

m)

LED1



Photogoniometerluminous intensitydistributionand retro-reflection

BSDF-measurementlightscattering, gloss, appearanceAngular and spectral resolved!!!



InGaAs-CCD: IR (1700 nm)

UV calibrated source, spectrograph

Spectral measurements within 200-400 nm



Spectral response of detectors (solar cells)

Photometric/colorimetric camera


Software

Relux

Luminaire design ray-tracing


Software

Meteonorm: irradiance, temperature data(1500 measurement stations)


Cooperation with industry

• Lighting (LEDs, luminaires, E-efficient lighting)Massive, Etap, Trilux, Philips, Schréder, Sylvania, Osram,Toplight, Z-line, LDI, Helbig, Pandora, Transit, Erea. . .

• Signalisation (traffic lights halo/LED)Swarco, Ledlite, Alpha Elektronics, BTI, Callier, Surtronics, . . .

• Materials (Appearance)Recticel, Helioscreen, Ocas, Tupperware, P&G, Volvo, Elscolab, . . .

• PhotovoltaicsSoltech, IMEC, Photovoltech, Lenoir Solar, 3E, Nozon, . . .

Contact with at least 80 companies and organisations!


Prof. M. Baelmans, afdeling Toegepaste Mechanica

en Energieconversie, KULeuven

Prof. R. Belmans, Prof. G. Deconinck, departement

ESAT, KULeuven

Prof. K. Neyts, Vakgroep ELIS, Universiteit Gent

Prof. P. Rombauts, Vakgroep Elektrotechniek-

Energietechniek, VUB

UCL

Academic Partners


IBE-BIV vzw, BrusselsCEN TC 169

Belgian Representative CIE Div. 1CIE TC 1-65CIE TC 1-69

ORM club at NPLColour Group of Great Britain

(Inter)national Membership

Acknowledgement:


Contact:

Peter HanselaerLaboratorium voor Lichttechnologie

KaHo St.-LievenGebr. Desmetstraat 1

B- 9000 GENTTel: +32 9 265 86 10Fax: +32 9 225 62 69

[email protected]

Laboratorium voor Lichttechnologie Laboratory for light ... · Laboratorium voor Lichttechnologie...

Documents

Transcript of Laboratorium voor Lichttechnologie Laboratory for light ... · Laboratorium voor Lichttechnologie...