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:
Jul. 18, 1995
Filed:
Sep. 10, 1993
Hideto Furuyama, Yokohama, JP;
Hiroshi Hamasaki, Sagamihara, JP;
Mitsuhiro Kushibe, Kawasaki, JP;
Katsuji Kaminishi, Yokohama, JP;
Tamon Kobayashi, Tokyo, JP;
Keiji Takaoka, Urayasu, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
Disclosed herein is an optical interconnection device having a light source, a plurality of optical interconnecting elements, and a light-receiving element. The optical interconnecting elements are located on an output side of the light source. Each of the elements has first and second major surfaces and comprises an integral unit made of an optical semiconductor element and a grating lens having concentric annular grooves and concentric annular projections, and two electrodes formed on the first and second major surfaces, respectively. The optical semiconductor element and grating lens of each optical interconnecting element are formed on the first major surface, for emitting or receiving light. The light-receiving element is located on an output side of the optical interconnecting elements. The optical interconnecting elements are arranged at substantially regular intervals, each positioned such that the semiconductor element and the grating lens face to the same direction. The grating lens of each of the optical interconnecting elements has optical characteristic which compensates for light-transmitting characteristic corresponding to the interval between the optical connecting element and the next optical interconnecting element.