This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Large-Area Variable Reflectance Mirrors for Trucks and Buses
Annotation ability available
Sector:
Language:
English
Abstract
Glare from the headlights of following vehicles which is reflected in rearview mirrors can be a significant problem. Glare can cause driver discomfort, it can diminish the driver's ability to see, and it can cause driver fatigue, particularly during prolonged night-time driving common for many professional drivers. Conventional rearview mirrors, such as silvered and chromed mirrors, offer only one reflectivity level. Variable reflectance mirrors, such as those utilizing electrochromic and liquid crystal technology, are capable of multiple reflectance levels. With variable reflectance, the driver can select a high reflectivity level during daytime driving or when reversing into loading docks, and can select a reduced dimmer reflectance level when driving during glaring conditions. This paper briefly reviews the principal technologies available for variable reflectance mirrors and outlines their performance as glare-reducing mirrors.
Authors
Citation
Helder, D., "Large-Area Variable Reflectance Mirrors for Trucks and Buses," SAE Technical Paper 912705, 1991, https://doi.org/10.4271/912705.Also In
References
- Schmidt-Clausen, H. Bindels, J. “Assessment of discomfort glare in motor vehicle lighting” Lighting Research and Technology 6 1974
- Olson, P. Sivak, M. “Glare from Automobile Rear-Vision Mirrors” Human Factors 26 3 1984
- Fry G. “A Re-evaluation of the Scattering Theory of Glare” Illumination Engineering 29 1954
- Blackwell, O.M. Blackwell, H. “Visual Performance Data for 156 Normal Observers of Various Ages” Journal of IES Oct 1971
- Schiflett, S. “Headlight Glare Effects on Driver Fatigue” Southwest Research Inst. San Antonio Sept 1969
- Lynam, N. Agrawal, A. “Automotive Applications of Chromogenic Materials” Large-Area Chromogenics: Materials and Devices for Transmittance Control. SPIE Institutes for Advanced Optical Technologies 4 Sept 1988 SPIE Optical Engineering Press Bellingham, WA.