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:
Jan. 17, 1995
Filed:
Mar. 18, 1994
Nozomu Takahashi, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An optical semiconductor device having a substrate; a plurality of light-emitting diodes disposed in a specific arrangement on the substrate; a peripheral member for housing the substrate and the light-emitting diodes; a first resin layer formed on an area of said substrate within the peripheral member and not occupied by said light-emitting diodes, for securing the light-emitting diodes between the substrate and the peripheral member; and a second resin layer formed on the first resin layer, wherein: minute irregularities are formed on the second resin layer so that external light directed onto the exposed surface of the second resin layer is diffusedly reflected.