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:
Oct. 01, 1991
Filed:
Apr. 23, 1990
Applicant:
Inventors:
Tetsuo Fukushima, Osaka, JP;
Kenichiro Suetsugu, Hyogo, JP;
Munekazu Nishihara, Osaka, JP;
Junji Ikeda, Nara, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01J / ; G03B / ;
U.S. Cl.
CPC ...
385120 ; 2502081 ; 355-1 ; 385116 ;
Abstract
An optical waveguide and an image sensor using the same, the optical waveguide comprising a plurality of bar-shaped cores that are aligned in a proper manner, the cores being made of transparent materials with a large refractive index, and a cladding that is disposed around the cores, the cladding being made of materials with a small refractive index that are capable of absorbing or scattering light, wherein part of each of said cores on which irradiated light is incident is uncovered, or part of said cladding on which irradiated light is incident is transparent.