Retroreflector

Details Retroreflector Retroreflector

1986-01-07

1987-12-15

Corbin, John K.

350109, G02B 5128

Patent

active

047128674

ABSTRACT:
Retroreflector (10) has a base (12) with an even back surface (24) and an uneven forward surface (14). The uneven forward surface is illustrated as grooved with one of the grooves shown at (22) with groove sides (30) and (32). The uneven forward surface (14) is coated with retroreflector elements (16) so that incident light from almost 90.degree. to the normal is retroreflected.

REFERENCES:
patent: 1671086 (1938-05-01), Stimson
patent: 3830682 (1974-08-01), Rowland
patent: 3836226 (1974-09-01), Cechetini
patent: 3851947 (1974-12-01), Montgomery
patent: 3989775 (1976-11-01), Jack et al.
patent: 4066331 (1978-01-01), Lindner

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