Ribbed reflector

Details Ribbed reflector Ribbed reflector

1990-12-14

1992-07-21

Ben, Loha

Optical: systems and elements

Signal reflector

3-corner retroreflective

359515, 359530, G02B 5122

Patent

active

051328410

ABSTRACT:
A reflectant surface of retro reflective material comprises a plurality of parallel convex outward ribs having a center-to-center spacing of between 3/8" and 1/16". The retro reflective surface preferably employs an arrangement of triads mutually perpendicular surfaces, which triads and surfaces are indistinguishable at normal minimum viewing distances.

REFERENCES:
patent: 4202600 (1980-05-01), Burke et al.
patent: 4573763 (1986-03-01), Thomas
patent: 4712867 (1987-12-01), Malek
patent: 5022739 (1991-06-01), Bennett et al.

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