发明名称 |
Illumination optical system having a mirror with a curved surface having rotational symmetry about a predetermined axis |
摘要 |
A projection type image display apparatus comprises a light source unit; an integrator unit for mixing luminous fluxes emitted from the light source unit so as to homogenize their light quantity distribution; a curved mirror for bending the optical path of luminous fluxes, which are turned into uniform light by the integrator unit, toward a projection unit; and the projection unit for causing the luminous fluxes to carry image information and projecting these luminous fluxes onto a screen.
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申请公布号 |
US6870580(B2) |
申请公布日期 |
2005.03.22 |
申请号 |
US20000737752 |
申请日期 |
2000.12.18 |
申请人 |
FUJI PHOTO OPTICAL CO., LTD. |
发明人 |
YONEYAMA KAZUYA |
分类号 |
G02B19/00;F21S2/00;F21V13/00;G02B17/06;G02B27/00;G02B27/14;G02F1/13;G02F1/1335;G02F1/13357;G03B21/14;H04N9/31;(IPC1-7):H04N5/74;G03B21/26;G03B21/288 |
主分类号 |
G02B19/00 |
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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