Visual Recovery and Discomfort Following Exposure to Oncoming Headlamps

Document Number: 2009-01-0546

Date Published: April 2009

Author(s):
Nicholas P. Skinner - Rensselaer Polytechnic Institute
John D. Bullough - Rensselaer Polytechnic Institute

Abstract:
A field experiment was performed to measure the effects of oncoming illuminance profiles with different photometric and temporal characteristics on visual recovery and subjective discomfort. Target detection time was correlated with the dosage, and rated discomfort was correlated with the peak illuminance of each profile. Older subjects generally had longer recovery times, but there were no differences between the age groups in terms of rated discomfort. The results suggest that discomfort glare is not predictive of visual disability and that control of luminous intensity at isolated points within the distribution of headlamps alone is not sufficient to minimize glare recovery.

File Size: 440K
Product Status: In Stock

Included in: V118-6

See other papers presented at SAE World Congress & Exhibition, April 2009, Detroit, MI, USA, Session: Automotive Lighting Technology (Part 3 of 3)

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