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:
Jun. 27, 2023
Filed:
Nov. 17, 2022
Nichia Corporation, Anan, JP;
Tadaaki Miyata, Yokohama, JP;
Yoshihiro Kimura, Yokohama, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
A light source device includes: a plurality of laser diodes that includes a first laser diode for emitting laser light of red color, a second laser diode for emitting laser light of green color, and a third laser diode for emitting laser light of blue color; a substrate directly or indirectly supporting the plurality of laser diodes; and a cap secured to the substrate and covering the plurality of laser diodes. The cap includes: a first glass portion configured to transmit the laser light that is emitted from the plurality of laser diodes, and a second glass portion. At least one of the first glass portion and the second glass portion comprises an alkaline glass region. The first glass portion and the second glass portion are bonded together via an electrically conductive layer that is in contact with the alkaline glass region. The first glass portion is bonded to the substrate.