CIE Expert Symposium on LED Light Sources
- Physical Measurement and Visual and Photobiological Assessment -
June 7-8, 2004, Tokyo Japan 
 
Presentations (PDF files)
 Available only to the participants - password required
 
Final Program
 

June 7 (Mon)

Schanda J (Hungary ) - Keynote paper 1
Physical and visual requirements for LEDs to be used for future lighting systems (1.7 MB)

Session I Vision / Color rendering

Bodrogi P.(Hungary) - invited paper
Colour rendering : past, present (2004), and future (410 KB)

Sandor N.(Hungary)
Visual observation of colour rendering (220 KB)

Yaguchi H. (Japan)
Categorical color rendering of LED light sources (1 MB)

Bodrogi P. (Hungary)
Why does the CIE Colour rendering index fail for white RGB LED light sources? (290 KB)

Ohno, Y. (USA)
Simulation analyses of white LED spectra and color rendering (3 MB)

Muray K. (USA)
White LEDs: Special characteristics and simple methods to improve their color-rendering (3.3 MB)

Session II: Vision

Nurmi T. (Finland)
The determination of the effective light intensity of LEDs (7.1 MB)

Hagiwara K.(Japan)
Visibility of color stimuli using LEDs in driving situations (4.7 MB)

Nakamura H.(Japan)
Basic theory for quantifying the effect of illuminance on the conspicuity of recessed-mount LED equipment (710 KB)

Session III: Photobiology

Horak W.(Germany) - invited paper
Photobiological safety issues concerning LEDs-problems and requirements (5.1 MB)

Sliney D. (USA)
Health and safety aspects of LEDs (840 KB)

Schulmeister K.(Austria)
Eye simulating scheme for a complete characterization of the retinal hazard of LEDs (2.5 MB)

Horak W. (Germany)
Prospect for the use of the CIE photobiological lamp safety standard for hazard assessments of "visible" LEDs for general lighting purposes (2.9 MB)

Reidenbach H.(Germany)
Results of lab and field trials regarding the eye blink reflex as a safety means for LEDs (2.9 MB)

Pinho P. (Finland)
Photobiological aspects of crop plants grown under light &endash;emitting diodes (180 KB)

 

June 8 (Tue)

Mueller G. (USA) - Keynote paper 2
White light from LEDs (1 MB)

Session IV Measurement (1)

Muray K.(USA) - Invited paper
LED measurements: Current work within CIE (3.7 MB)

Gibbs D.(UK)
Improved traceability for LED measurements and the results of a round-robin comparison of LED cluster measurements (12.7 MB)

Schuette J. (Germany)
LED transfer standards (340 KB)

Mathe G. (Germany)
Measurement of Averaged LED intensity based on spectroradiometric standards (1 MB)

Farkas G. (Germany)
Complex characterization of power LED-s: simultaneous measurement of photometric/radiometric and thermal properties (860 KB)

Csuti P. (Hungary)
Comparison of the goodness of fit to the function of photometers using real LED spectra (360 KB)

Session V Measurement (2)

Young R. (USA)
Practical uncertainty budgets for spectral measurements of LEDs (1 MB)

Eppeldauer G. (USA)
Development and application issues of a spectrally tunable LED source (6.1 MB)

Zong Y. (USA)
Measurement of total radiant flux of UV LEDs (100 KB)

Rattunde R. (Germany)
Color and color distribution of signal lamps with LEDs (5.8 MB)

Ikonen E. (Finland)
Evaluation of calibration methods of a photometer measuring maritime LED buoy lanterns (440 KB)

Kohmoto K. (Japan)
Considerations on optical properties of LEDs for general illumination (2.7 MB)

Pan J. (China)
General lighting purpose LEDs, their characteristics and physical measurement (16 MB)

 

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June 9 (Wed) D1/D2 Joint Session

Safety aspects for LEDs (Introduced by Werner Horak)

Colour rendering of LEDs (Introduced by Janos Schanda)

Mesopic photometry and visual performance (Introduced by Liisa Halonen)