Invention Grant
- Patent Title: Wavelength conversion element, light source device, and projector
- Patent Title (中): 波长转换元件，光源设备和投影机
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Application No.: US13758385Application Date: 2013-02-04
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Publication No.: US09206959B2Publication Date: 2015-12-08
- Inventor: Akihiro Kashiwagi , Shigeo Nojima , Akira Miyamae , Akira Egawa
- 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: JP2012-024056 20120207
- Main IPC: G03B21/20
- IPC: G03B21/20 ; H04N9/31 ; F21V9/16 ; H05B33/14
Abstract:
A wavelength conversion element includes a substrate, and a fluorescent material layer disposed on the substrate. The volume concentration of the fluorescent material in the fluorescent material layer is equal to or higher than 15 vol %.
Public/Granted literature
- US20130201456A1 WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, AND PROJECTOR Public/Granted day:2013-08-08
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