Light distributor

Details Light distributor Light distributor

1980-06-23

1981-08-04

Lechert, Jr., Stephen J.

Illumination

Illuminated scale or dial

Edge illuminated modifier or light rod/pipe

362 31, 362157, 362311, G01D 1128

Patent

active

042825601

ABSTRACT:
A light distributor is described for use in distributing light from a source in a generally uniform manner across an edge, to for example, illuminate an array of light sensitive elements. The light distributor can be made of a transparent plastic material and is formed with a light guide and a lamp supporting segment. The light guide has a pair of planar faces bounded by sides of a curvature, which bears a particular relationship with a light source region in the lamp supporting segment so as to distribute light therefrom across the edge. A cost effective efficient light distributor is described, particularly for use in activating photocells arranged in an array in a shaft encoder.

REFERENCES:
patent: 3526762 (1970-09-01), Blackwell

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