DISCOMFORT GLARE - IMPACT OF HEADLAMP OPTICS, SPECTRUM OF ADAPTATION AND SPD

作者：Schiller Christoph^*; Sprute Jan Holger; Haferkemper Nils; Khanh Tran Quoc

来源：Light & Engineering, 2010, 18(2): 25-29.

• discomfort glare
• spectral power distribution
• headlamp optics
• field test

The Laboratory of Lighting Technology at the Technische Universitat Darmstadt has performed field tests in order to describe selected parameters in more detail, which could have an influence on a subject's feeling of discomfort glare. This paper discusses the impact of
the headlamp's optical concept (reflexion; projection),
the driver's spectrum of adaptation (High Intensity Discharge, Tungsten Halogen) and
the spectral power distribution (SPD) of the glare source (HID, Tungsten Halogen) as possible factors.
The choice of one's own car's headlamps (TH or HID) has an influence on the subject's adaptation level, but has no real impact on discomfort glare ratings. Headlamp optics show a distinct pattern. The tested TH reflector headlamps were detected to cause significantly higher discomfort glare than both TH and HID projection headlamps, which led to nearly identical feelings of discomfort.

• 出版日期2010