The purpose of this project was to use clinical optometric research and field trials to investigate the reduction in glare and improvement in night visibility from the use of Neodymium Oxide doped headlights, rear view mirrors, and windshields.
Neodymium Oxide, as a component of glass, selectively filters out yellow light. Neodymium Oxide can be incorporated into the glass of the headlight lamp, rear view mirror, and windshield. When yellow light is filtered out of the spectrum, the color contrast of other colors is improved. Improvement in contrast can permit a motor vehicle driver to better discriminate viewed objects at night. Filtering yellow light from headlights reduces glare and should lessen eyestrain currently resulting from light emitted from conventional headlights of oncoming vehicles at night.
The revised Final Report for this project, addressing comments from committee members’ reviews, was submitted in February 2005. This project is completed.
The final report for this IDEA project can be found at:
https://onlinepubs.trb.org/onlinepubs/archive/studies/idea/finalreports/safety/S-01_Final_Report.pdf.
