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. 09, 2008
Filed:
May. 23, 2007
Rintaro Koda, Tokyo, JP;
Takahiro Arakida, Kanagawa, JP;
Yoshinori Yamauchi, Tokyo, JP;
Yuji Masui, Kanagawa, JP;
Norihiko Yamaguchi, Kanagawa, JP;
Rintaro Koda, Tokyo, JP;
Takahiro Arakida, Kanagawa, JP;
Yoshinori Yamauchi, Tokyo, JP;
Yuji Masui, Kanagawa, JP;
Norihiko Yamaguchi, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A semiconductor light-emitting device includes: a semiconductor light-emitting element including a first conductive type semiconductor layer, an active layer including a light-emitting region, and a second conductive type semiconductor layer in this order; a filter having a transmission characteristic in which the transmittance in a direction parallel to the optical axis of induced emission light of light outputted from the semiconductor light-emitting element is higher than the transmittance in a direction different from the optical axis; and a semiconductor photodetector including a light-absorbing layer, the light-absorbing layer absorbing a part of light passing through the filter, wherein the filter and the semiconductor photodetector are laminated in this order on the second conductive type semiconductor layer of the semiconductor light-emitting element, and are formed with the semiconductor light-emitting element as one unit.