发明授权
US09417511B2 Lighting device, projector including the same, and lighting method
有权
照明装置,包括相同的投影机,以及照明方式
- 专利标题: Lighting device, projector including the same, and lighting method
- 专利标题(中): 照明装置,包括相同的投影机,以及照明方式
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申请号: US14277196申请日: 2014-05-14
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公开(公告)号: US09417511B2公开(公告)日: 2016-08-16
- 发明人: Tatsuya Takahashi , Kazuhiro Fujita , Issei Abe
- 申请人: Tatsuya Takahashi , Kazuhiro Fujita , Issei Abe
- 申请人地址: JP Tokyo
- 专利权人: RICOH COMPANY, LTD.
- 当前专利权人: RICOH COMPANY, LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Harness, Dickey & Pierce
- 优先权: JP2013-102195 20130514
- 主分类号: G02B27/10
- IPC分类号: G02B27/10 ; G03B21/20 ; G03B33/04 ; G03B33/08 ; H04N9/31
摘要:
A lighting device includes a first light source which emits excitation light, a wavelength convertor which generates fluorescence containing at least a first wavelength range and a second wavelength range by excitation with the excitation light, a second light source which emits light containing a third wavelength range different from the first wavelength range and the second wavelength range, an optical path-combining element which combines an optical path for the fluorescence from the wavelength convertor and an optical path for the light from the second light source, so as to guide the combined optical paths to a single emission optical path, and a light separator disposed in the emission optical path, which obtains and emits at least the first wavelength range and the second wavelength range of the fluorescence and at least the third wavelength range of the light from the second light source.
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