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:
Mar. 15, 1994
Filed:
Jul. 21, 1992
Applicant:
Inventor:
Hiroyuki Iechi, Sendai, JP;
Assignees:
Ricoh Company, Ltd., Tokyo, JP;
Ricoh Research Institute of General Electronics Co., Ltd., Natori, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01S / ;
U.S. Cl.
CPC ...
257 95 ; 257 80 ; 257 85 ; 257 90 ; 372 48 ; 372 50 ; 372 97 ;
Abstract
A semiconductor light emitting device able to emit a high intensity, stable light. An edge surface lighting type light emitting diode array is formed on a substrate. A light emitting edge surface of each light emitting element is formed by an etching method. A surface of the substrate in front of the light emitting edge surface is formed in multiple stage so that a light beam is not reflected by the surface of the substrate.