Invention Grant
- Patent Title: Ceramic composite, light source apparatus, and projector
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Application No.: US16934070Application Date: 2020-07-21
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Publication No.: US11279871B2Publication Date: 2022-03-22
- Inventor: Satoshi Kito , Osamu Arakawa
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JPJP2019-134358 20190722
- Main IPC: C09K11/02
- IPC: C09K11/02 ; G03B21/20 ; G02B26/00

Abstract:
A ceramic composite according to the present disclosure has a phosphor phase containing an activator and a phosphor and a matrix phase containing MgO as a light transmissive ceramic material. The ceramic composite is made of an inorganic material, and the content of the phosphor phase is so set that the volume ratio of the phosphor phase to the entire phase including the matrix phase and the phosphor phase is lower than or equal to 20 vol %.
Public/Granted literature
- US20210024818A1 CERAMIC COMPOSITE, LIGHT SOURCE APPARATUS, AND PROJECTOR Public/Granted day:2021-01-28
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