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:
Sep. 02, 1997
Filed:
Nov. 22, 1995
Applicant:
Inventors:
Hiroshi Suda, Tokyo, JP;
Takeshi Nakamura, Tokyo, JP;
Hirofumi Nemoto, Tokyo, JP;
Akinobu Suzuki, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359152 ; 359131 ; 359159 ; 359168 ; 257 81 ;
Abstract
An optical semiconductor device module comprising a light emitting element, an optical fiber, a light receiving element and an optical filter. The optical semiconductor module further includes a light absorbing-reflecting section for absorbing some of the stray beams which cannot pass through the optical filter, and reflecting some of such stray beams in a direction opposite to an optical axis of the beams. The light absorbing-reflecting section is present in a module casing such that it faces, on the optical axis, the light receiving element via the optical filter.