Diced retroreflective sheeting

Details Diced retroreflective sheeting Diced retroreflective sheeting

1978-04-24

1980-05-13

Corbin, John K.

350 97, G02B 5122

Patent

active

042026008

ABSTRACT:
Retroreflective sheeting having a plurality of retroreflective cube corner prisms distributed over one of its surfaces is described. The prisms are disposed in a planar array having a plurality of zones of prisms having differing angular orientations such that the zones have differing retroreflective brightness when illuminated by a light beam at a high angle of incidence. The zones are small enough to be substantially unresolvable by the unaided human eye at the expected viewing distances, so that the sheeting appears to have uniform retroreflective brightness when viewed at a high angle of incidence.

REFERENCES:
patent: 3541606 (1970-11-01), Heenan et al.
patent: 3684348 (1972-08-01), Rowland
patent: 3712706 (1973-01-01), Stamm
patent: 3810804 (1974-05-01), Rowland
patent: 3873184 (1975-03-01), Heenan et al.
patent: 3935359 (1976-01-01), Rowland
patent: 4025159 (1977-05-01), McGrath

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