Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shoichiro Yamaguchi0
Keiichiro Asai0
Naotake Okada0
Iwao Ohwada0
Jungo Kondo0
Date of Patent
September 7, 2021
0Patent Application Number
201812120
Date Filed
December 12, 2018
0Patent abstract
A phosphor device includes a phosphor layer composed of a phosphor glass or phosphor single crystal, a reflective film provided on the phosphor layer, a warping suppression layer provided on the reflective film, and a supporting body bonded to the warping suppression layer by direct bonding. An excitation light incident into the phosphor layer is converted to fluorescence, and the fluorescence and excitation light are reflected by the reflective film and emitted from the phosphor layer.
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