Retroreflector of integrated light reflecting units of varying c

Details Retroreflector of integrated light reflecting units of varying c Retroreflector of integrated light reflecting units of varying c

1978-10-13

1980-02-19

Corbin, John K.

Road structure, process, or apparatus

Apparatus

Rotating drum, roller or tire

404 14, G02B 5124

Patent

active

041892097

ABSTRACT:
A retroreflector and a process for preparing it are disclosed characterized in that the retroreflector has a retroreflecting area consisting of rows of integrated, trihedral, light-reflecting units of varying geometric configurations which are so arranged as to provide substantially the same wide angle response to incident light throughout the entire retroreflective area. Essentially, the widths of adjacent rows of trihedral, light-reflecting units vary to form a pattern which may be repeated throughout the retroreflective area.

REFERENCES:
patent: 1671086 (1928-05-01), Stimson
patent: 3332327 (1967-07-01), Heenan
patent: 3392639 (1966-10-01), Heenan et al.
patent: 3684348 (1972-08-01), Rowland
patent: 3758191 (1973-09-01), Hedgewich
patent: 3873184 (1975-03-01), Heenan
patent: 3923378 (1975-12-01), Heenan
patent: 3954324 (1976-05-01), Arnott et al.
patent: 4073568 (1978-02-01), Heasley
patent: 4076383 (1978-02-01), Heasley

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