发明名称 |
LIGHT SOURCE UNIT HAVING WAVELENGTH CONVERSION MEMBER AND PROJECTOR |
摘要 |
There is provided a light source unit which includes an excitation light source configured to emit light in a first wavelength range, a wavelength conversion member on which the light in the first wavelength range is incident from an incident side thereof and which is made up of a member formed to include a luminescent material mixed therein which emits light in a second wavelength range having its wavelength peak on a longer wavelength side than a wavelength peak of the light in the first wavelength range, and a first optical filter which is provided at an output side of the wavelength conversion member which lies opposite to the incident side and which transmits a light component of the light in the second wavelength range which has a wavelength shorter than a third wavelength lying in a wavelength range of the light in the second wavelength range. |
申请公布号 |
US2015252978(A1) |
申请公布日期 |
2015.09.10 |
申请号 |
US201514636925 |
申请日期 |
2015.03.03 |
申请人 |
CASIO COMPUTER CO., LTD. |
发明人 |
UEDA Tomoyuki |
分类号 |
F21V9/16;G03B21/20;F21V8/00;F21K99/00;F21V9/08 |
主分类号 |
F21V9/16 |
代理机构 |
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代理人 |
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主权项 |
1. A light source unit comprising:
an excitation light source configured to emit light in a first wavelength range; a wavelength conversion member on which the light in the first wavelength range is incident from an incident side thereof and which is made up of a member formed to include a luminescent material mixed therein which emits light in a second wavelength range having its wavelength peak on a longer wavelength side than a wavelength peak of the light in the first wavelength range; and a first optical filter which is provided at an output side of the wavelength conversion member which lies opposite to the incident side and which transmits a light component of the light in the second wavelength range which has a wavelength shorter than a third wavelength lying in a wavelength range of the light in the second wavelength range. |
地址 |
Tokyo JP |