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:
May. 25, 1999
Filed:
May. 09, 1997
Hideki Maruyama, Chikushino, JP;
Matsushita Electric Industrial Co., LTD., Osaka, JP;
Abstract
The present invention aims to provide a highly reliable light-emitting device capable of simplifying alignment of optical axes of light-emitting element and optical fiber and making optical coupling between them with high efficiency, and a light-emitting device manufacturing method, by which such light-emitting device can be manufactured with high productivity. Since a lens made of radiation sensitive resin is formed directly on a light-emitting element to be located just above a light-emitting surface, it becomes possible to provide a highly reliable light-emitting device capable of allowing the optical axes of the light-emitting element and the optical fiber to be aligned more easily and making optical coupling between them with high efficiency. Further, it becomes possible to provide a manufacturing method capable of manufacturing a highly reliable light-emitting device and comprising the steps of forming a resist layer on a light-emitting element wafer having a plurality of light-emitting surfaces, masking portions of the resist layer just above the light-emitting surfaces, removing the resist layer except the masked portions, and shaping the resist layer into lenses.