发明名称 |
Light source unit and projector |
摘要 |
A light source unit including an excitation light source for emitting light in a blue wavelength band, a fluorescent wheel, a light emitting device for emitting light in a red wavelength band and a light guiding optical system for guiding light emitted from the fluorescent wheel and the light emitting device to a light guiding device. The fluorescent wheel has a fluorescent area where a green fluorescent material layer for emitting fluorescent light in a green wavelength band is disposed and a diffuse area for converting light emitted from the excitation light source into diffuse light of which directivity is weak are disposed end to end in a circumferential direction. A concentration of weight content of the green fluorescent material and a thickness thereof are such that a luminescent intensity of fluorescent light emitted from the green fluorescent material layer is enhanced. |
申请公布号 |
US8337027(B2) |
申请公布日期 |
2012.12.25 |
申请号 |
US20100872173 |
申请日期 |
2010.08.31 |
申请人 |
OGURA NAOTSUGU;OGAWA MASAHIRO;NAKAMURA HIDEKI;MIYAZAKI TAKESHI;MASUDA HIROKI;KAWAKAMI YASUYUKI;CASIO COMPUTER CO., LTD.;STANLEY ELECTRIC CO., LTD. |
发明人 |
OGURA NAOTSUGU;OGAWA MASAHIRO;NAKAMURA HIDEKI;MIYAZAKI TAKESHI;MASUDA HIROKI;KAWAKAMI YASUYUKI |
分类号 |
G03B21/20;F21V9/16;G03B21/14;G03B21/26 |
主分类号 |
G03B21/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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