Optical: systems and elements – Glare or unwanted light reduction – With mirror
Patent
1997-05-27
1998-12-01
Spyrou, Cassandra C.
Optical: systems and elements
Glare or unwanted light reduction
With mirror
359601, 359884, 359885, 362293, G02B 2700, G02B 2316, G02B 508, G02B 7182
Patent
active
058447210
ABSTRACT:
A rearview mirror suitable for use as a rearview mirror for land, water and aircraft and motor vehicles in particular. The glass mirror includes glass containing Neodymium Oxide, a rare earth compound. The Neodymium Oxide filters out the naturally occurring yellow light produced by a hot incandescent filament, thereby producing a color-corrected light. Yellow light contributes to a lack of contrast. Improvement in contrast permits, for example, a motor vehicle driver to better discriminate the contrast of objects when there is no daylight and the only illumination is artificial. For drivers, in particular, elimination of the excessive yellow light lessens eyestrain currently resulting from light emitted by the conventional headlights of vehicles in the rearview mirror during hours of darkness. Additionally, the Neodymium Oxide in the glass will filter out the yellow light from the rising or setting sun in the rearview mirror.
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Sikd-er Mohammad Y.
Spyrou Cassandra C.
Walker Alfred M.
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