Invention Grant
- Patent Title: Projector-use luminescent wheel and manufacturing method therefor, and projector-use light emitting device
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Application No.: US16361275Application Date: 2019-03-22
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Publication No.: US10365553B1Publication Date: 2019-07-30
- Inventor: Tamio Ando , Tadahito Furuyama , Shunsuke Fujita
- 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: JP2013-272217 20131227; JP2014-244106 20141202
- Main IPC: G03B21/14
- IPC: G03B21/14 ; H04N9/31 ; G03B21/20 ; G02B26/00 ; B32B15/20 ; G02B27/14 ; B32B17/06 ; B32B7/12 ; B32B9/00 ; B32B37/06 ; B32B5/16 ; B32B37/12 ; G02B1/11 ; B32B38/00

Abstract:
Provided is a luminescent wheel for a projector, which has a novel structure in which a phosphor layer is hard to break even if its thickness is reduced; a manufacturing method therefor; and a light emitting device for a projector. A luminescent wheel for a projector includes: a phosphor layer (11) which has a first principal surface (11a) and a second principal surface (11b) located on an opposite side to the first principal surface (11a) and is capable of being excited by the entry of excitation light to emit fluorescence; a first glass layer (12) provided on the first principal surface (11a) of the phosphor layer (11); and a second glass layer (13) provided on the second principal surface (11b) of the phosphor layer (11).
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