Invention Grant
- Patent Title: Light emitting device
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Application No.: US15690038Application Date: 2017-08-29
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Publication No.: US10253933B2Publication Date: 2019-04-09
- Inventor: Seiji Kiyota , Eiichiro Okahisa
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-Shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-Shi
- Agency: Foley & Lardner LLP
- Priority: JP2016-167457 20160830
- Main IPC: F21K9/64
- IPC: F21K9/64 ; G02B19/00 ; F21V11/08 ; H01S5/00 ; F21V9/30 ; F21S41/20 ; F21V5/00 ; F21V31/00 ; F21Y115/30 ; H01S5/022 ; H01S5/323 ; F21V5/02 ; F21S41/43 ; F21S41/16 ; F21S41/176

Abstract:
A light emitting device includes: a base; a laser element disposed on an upper face of the base and adapted to laterally emit a laser beam; a phosphor member disposed on the upper face of the base; a first optical member disposed on the upper face of the base, the first optical member comprising an entry-side lateral face through which the laser beam enters during use and an exit-side lateral face through which the laser beam exits during use, and the first optical member being configured to change a traveling direction of the laser beam such that the laser beam transmitted through the first optical member irradiates an upper face of the phosphor member; and a cap comprising: a light shielding member, and a light transmissive member located over the through hole, the laser element, the phosphor member, and the first optical member. The light shielding member includes a protruded portion extending downward to a position that is lower than an upper end of the first optical member so as to face the exit-side lateral face of the first optical member.
Public/Granted literature
- US20180058645A1 LIGHT EMITTING DEVICE Public/Granted day:2018-03-01
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