Wide angle retroreflector assembly and method of making same

Details Wide angle retroreflector assembly and method of making same Wide angle retroreflector assembly and method of making same

1974-07-24

1976-08-17

Corbin, John K.

350104, G02B 512

Patent

active

039750833

ABSTRACT:
A retroreflective assembly is provided by a base having closely spaced retroreflective formations in its upper surface portion and a top member having closely spaced prism formations of the lower surface thereof and light directing formations on the upper surface thereof. Light rays impinging upon the assembly at an angle of less than 10 degrees are directed into the body of the top member by the light directing formations and pass into the prism formations which in turn direct light rays into the retroreflective formations of the base member. The retroreflective formations then retroreflective the light rays back into the prism formations and the light rays pass into the light directing formations on the upper surface and back towards the source. The composite structure is readily fabricated from synthetic plastic materials in its entirety or with glass bead retroreflective elements and can be sealed to provide a highly useful lane dividing strip for roadways and the like.

REFERENCES:
patent: 3140340 (1964-07-01), Weber
patent: 3684348 (1972-08-01), Rowland
patent: 3836226 (1974-09-01), Cechetini

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