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:
Aug. 17, 1999
Filed:
Jul. 22, 1997
Takeo Sugawara, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu, JP;
Abstract
The fiber optic device in accordance with the present invention has a structure in which two fiber optic members are connected together, end faces thereof opposing each other. The input-side fiber optic member comprises cores extending in a predetermined direction and a light absorber surrounding the cores. The output-side fiber optic member comprises cores extending in a predetermined direction, and a cladding surrounding the cores. The input end face of the input-side member is inclined with respect to core axes therein. In this device, the angle of inclination of the input end face of the input-side member or the angle formed between the output end face of the output-side member and each core axis in the output-side member can be set to a value relatively near to 90.degree.. Accordingly, this device can be attached to a photodetector with relative ease. Also, a light receiving member formed by this attachment is relatively compact.