Market evaluation, performance modelling and materials solution addressing short wavelength discomfort glare in rear view automotive mirrors. (28th August 2015) - Caruso, Dean
Abstract: Recent trends in automotive night time illumination have seen an increase in the use of short wavelength forward lighting, where high intensity discharge (HID) and light emitting diode (LED) headlamps are replacing traditional halogen headlamps. A targeted review of literature suggests short wavelength lighting produces significantly more discomfort glare for drivers. When designing an anti-glare rear view mirror, consideration should be given to all three headlamp glare sources currently on vehicles and their likely reflected glare effects on drivers. In this study a novel antiglare rear view mirror solution has been developed by means of a thin film interference coating formed by alternating silica and chrome layers. The antiglare mirrors performance has been evaluated in terms of glare reduction and object detection using a light ray tracing simulation package. Prototype samples have been validated under laboratory conditions demonstrating significant glare reduction whilst maintaining a high level of optical performance. This technology has been transferred to SMR Automotive Australia's high volume production facility.