Wide incident angle reflective plate

Details Wide incident angle reflective plate Wide incident angle reflective plate

Filed on

1998-03-30

Date issued

1999-11-02

Examiner

Phan, James

Patent Class

Optical: systems and elements

SubClass

Signal reflector

SubSubClass

3-corner retroreflective

Other Related Categories

359529, 359536, 359541, G02B 524, G02B 5128

Type

Patent

Status

active

Patent number

059757060

Description

ABSTRACT:
A reflective plate (10) is disclosed, comprising a substrate (1), a retroreflective sheet (2) adhered to the surface of said substrate and having substantially flat base portions (3) covered with said retroreflective sheet (2), the retroreflective sheeting having retroreflective elements and a light transmissive cover layer; and a plurality of projections (4) covered with said retroreflective sheet and present on the corners of regular polygons that are arranged to form a regularly repeated pattern, wherein the arrangement of the projections (4) satisfies the relationship 0.05<h/P<0.60.

REFERENCES:
patent: 4069281 (1978-01-01), Eigenmann
patent: 4388359 (1983-06-01), Ethen et al.
patent: 4605461 (1986-08-01), Ogi
patent: 4712867 (1987-12-01), Malek
patent: 4988555 (1991-01-01), Hedblom
patent: 5557461 (1996-09-01), Wyckoff
patent: 5777791 (1998-07-01), Hedblom

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