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:
Feb. 26, 2019
Filed:
Jan. 20, 2017
Nichia Corporation, Anan-shi, Tokushima, JP;
Yuji Matsuyama, Tokushima, JP;
Takashi Sakamoto, Anan, JP;
NICHIA CORPORATION, Anan-Shi, JP;
Abstract
A light source device includes a light source unit comprising a laser element configured to emit laser light, and a cap hermetically sealing the laser element; a wavelength conversion unit comprising a fluorescent material-containing member containing a fluorescent material adapted to be excited by the laser light; a light-shielding member having a pipe shape and having a first end with a first opening and a second end with a second opening, wherein the light-shielding member defines a hollow optical waveguide between the first end and the second end, the first opening at the first end is covered by the light source unit, and the wavelength conversion unit is arranged at the second end, thereby allowing the laser light propagating through the hollow optical waveguide to reach the fluorescent material-containing member; and an optical member configured to collimate the laser light and direct collimated laser light to the hollow optical waveguide.