Omnidirectional retro-reflective roadway marker and the like

Details Omnidirectional retro-reflective roadway marker and the like Omnidirectional retro-reflective roadway marker and the like

1995-05-26

1996-09-17

Phan, James

Optical: systems and elements

Signal reflector

Mounted on roadway

359534, 359536, 359547, 404 14, G02B 512, G02B 5128

Patent

active

055574610

ABSTRACT:
A novel roadway or similar marker strip having preferably retro-reflective-beaded protuberances in a critical "herringbone"-like pattern that provides a surprising degree of azimuthal uniform omindirectionality of light reflected from the strip.

REFERENCES:
patent: 3399607 (1968-09-01), Eigenmann
patent: 3768383 (1973-10-01), Tucker
patent: 4040760 (1977-08-01), Wyckoff
patent: 4681401 (1987-07-01), Wyckoff
patent: 4969713 (1990-11-01), Wyckoff

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