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.
Patent No.:
Date of Patent:
Feb. 17, 1987
Filed:
Mar. 26, 1984
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A reading optical system comprises a transparent block a part of whose bottom surface is an inclined surface forming an angle with respect to the horizontal plane, combined light-guides embedded in the block and having one end thereof all disposed on the intermediate portion of the inclined surface spaced apart by a predetermined distance from the lower end of the inclined surface and the other end extending on the upper surface of the block, a light sensor installed on the upper surface of the block in opposed relationship with the other end of the combined light-guides, and an illuminating system for illuminating the vicinity of the surface of an original opposed to the one end of the combined light-guides, through the block.