Patent · US Active

Ceramic composite, light source apparatus, and projector

US11279871B2 · kind B2 · utility

0Cited by

0References

13Claims

0Family size

Assignee

SEIKO EPSON CORPORATION · JP

Inventors

Satoshi Kito · Chino, JP
Osamu Arakawa · Shiojiri, JP

Key dates

Filing date	Jul 21, 2020
Grant date	Mar 22, 2022
Priority date	—
Expiry date	Jul 21, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG03B21/204
WIPO fieldOptics
WIPO sectorInstruments

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 %.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.