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:
Mar. 15, 1994
Filed:
Oct. 05, 1992
Applicant:
Inventors:
Osamu Kihara, Kyoto, JP;
Kensuke Sawase, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2502081 ; 2502 / ;
Abstract
In an image sensor, a light receptor has a shield film formed substantially centrally in a light receiving area on each of a plurality of light receiving devices, except those disposed at opposite ends of each sensor IC, for adjusting the quantity of light received by each light emitting device. The result is that fluctuation of sensitivity and resolution failure, which might occur during the production of sensor ICs to be used as the light receptor, can be eliminated.