发明授权
US09046750B2 Projector light source apparatus having collimator disposed between excitation light source and phosphor element
有权
具有设置在激发光源和荧光体元件之间的准直仪的投影仪光源装置
- 专利标题： Projector light source apparatus having collimator disposed between excitation light source and phosphor element
- 专利标题（中）： 具有设置在激发光源和荧光体元件之间的准直仪的投影仪光源装置
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申请号： US13883977申请日： 2010-11-17
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公开(公告)号： US09046750B2公开(公告)日： 2015-06-02
- 发明人: Masateru Matsubara
- 申请人： Masateru Matsubara
- 申请人地址： JP Tokyo
- 专利权人： NEC Display Solutions, Ltd.
- 当前专利权人： NEC Display Solutions, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： McGinn IP Law Group, PLLC
- 国际申请： PCT/JP2010/070484 WO 20101117
- 国际公布： WO2012/066654 WO 20120524
- 主分类号： G03B21/20
- IPC分类号： G03B21/20 ; H04N9/31 ; G03B33/06 ; F21V13/14
摘要：
A light source apparatus includes excitation light sources, a phosphor unit, a dichroic mirror that reflects excitation light supplied from the excitation light sources toward the phosphor unit and that transmits fluorescent light emitted from the phosphor unit, and a collimator lens that is provided between the dichroic mirror and the phosphor unit and whose focal distance varies according to the wavelength. The phosphor unit is arranged at a position determined by the focal distance of the collimator lens for the fluorescent wavelength. The collimator lens includes low-dispersion lenses and a high-dispersion lens.