Retroreflective material with improved angularity

Details Retroreflective material with improved angularity Retroreflective material with improved angularity

1990-09-10

1992-08-11

Arnold, Bruce Y.

Optical: systems and elements

Signal reflector

3-corner retroreflective

359530, G02B 5124

Patent

active

051384884

ABSTRACT:
The present invention provides an improved cube-corner retroreflective article that exhibits a wide range of retroreflective angularity in multiple viewing planes. The present invention provides cube-corner retroreflective elements having a decreased size, as measured by the height of the cube corner, thereby decreasing the amount of canting required to achieve a given angularity. Alternatively, angularity can be enhanced by leaving the degree of canting constant and decreasing the size of the cube corner.

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patent: 4895428 (1990-01-01), Nelson et al.
patent: 4938563 (1990-07-01), Nelson et al.

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