The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 23, 1987

Filed:

Sep. 18, 1985
Applicant:
Inventors:

Fumitaka Takahashi, Tokyo, JP;

Yoshihiko Kimura, Saitama, JP;

Hideo Tsubata, Saitama, JP;

Nobuaki Oji, Saitama, JP;

Minoru Mohri, Saitama, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9613 ; 350 9615 ; 350 9619 ;
Abstract

A light-conductive circuit unit comprises a substrate (1) made of an optical material, the substrate (1) having a light inlet surface (1a) for letting in a beam of light from a light source (2a to 2c), a light outlet surface (1b) for letting out a beam of light to a light-receiving element (3a to 3g), and a light-conductive path (4a to 4h) constituted with a part of the substrate to conduct rays of light from the light inlet surface (1a) to the light outlet surface (1b), and a combination of light course turning parts (5a to 5g) and optical switching mechanisms (6a to 6e) both substantially integrated with the substrate (1).


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