Invention Grant
- Patent Title: Projector light source including wavelength conversion member having porous ceramic substrate
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Application No.: US15539724Application Date: 2016-01-22
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Publication No.: US10557614B2Publication Date: 2020-02-11
- Inventor: Tadahito Furuyama
- Applicant: NIPPON ELECTRIC GLASS CO., LTD.
- Applicant Address: JP Shiga
- Assignee: NIPPON ELECTRIC GLASS CO., LTD.
- Current Assignee: NIPPON ELECTRIC GLASS CO., LTD.
- Current Assignee Address: JP Shiga
- Agency: Keating and Bennett, LLP
- Priority: JP2015-018967 20150203; JP2015-060499 20150324
- International Application: PCT/JP2016/051903 WO 20160122
- International Announcement: WO2016/125611 WO 20160811
- Main IPC: F21V9/32
- IPC: F21V9/32 ; F21V9/30 ; F21V9/40 ; C04B41/85 ; F21V7/22 ; G03B21/20 ; G03B21/00 ; G02B26/00 ; G03B21/16 ; H04N9/31 ; H01L33/64 ; H01L33/50 ; H01S5/00
Abstract:
A wheel-shaped wavelength conversion member includes a first porous ceramic layer having a porosity of at least 20% by volume, a phosphor layer formed on a first principal surface of the first porous ceramic layer, a ceramic heat dissipation layer having a porosity of 20% or less by volume provided on a second principal surface of the first porous ceramic layer opposite the first principal surface, and a second porous ceramic layer having a porosity of at least 20% by volume provided on a surface of the heat dissipation layer opposite the first porous ceramic layer.
Public/Granted literature
- US20180003363A1 WAVELENGTH CONVERSION MEMBER AND LIGHT EMITTING DEVICE USING SAME Public/Granted day:2018-01-04
Information query
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