Rear view mirror having trailing distance indicia

Details Rear view mirror having trailing distance indicia Rear view mirror having trailing distance indicia

1997-04-21

1999-06-29

Spyrou, Cassandra

Optical: systems and elements

Mirror

359839, 359884, G02B 508

Patent

active

059176660

ABSTRACT:
A rear-view mirror for indicating to an operator of a vehicle the distance between his vehicle and another vehicle trailing therebehind. The device includes a substrate having a reflective surface and indicia thereon, wherein the indicia is dimensioned such that an image of the trailing vehicle substantially "fills" a spacing between opposing portions or segments of the indicia as the trailing vehicle is spaced a predetermined distance therebehind. The indicia may be non-illuminated for daytime use or may be illuminated for nighttime use. The indicia may have a variety of different configurations and may be configured to provide information to the operator of the vehicle as to a plurality of predetermined trailing distances for a plurality of types of trailing vehicles.

REFERENCES:
patent: 4023029 (1977-05-01), Fischer
patent: 5289321 (1994-02-01), Secor

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