发明名称 |
Image projecting apparatus having variable stop |
摘要 |
An image projecting apparatus has an integrator for generating plural secondary-light-source images for generating illumination light with a uniform intensity; and a variable stop mechanism arranged at or near a position conjugate with the secondary-light-source images. The variable stop mechanism has a base plate having a fixed aperture; and a stop blade which moves across the aperture for changing a quantity of light. The change in the quantity of light passing through said variable stop caused by the movement of said stop blade is greater than a change in a size of an effective region of a stop aperture.
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申请公布号 |
US2007064203(A1) |
申请公布日期 |
2007.03.22 |
申请号 |
US20060517100 |
申请日期 |
2006.09.07 |
申请人 |
KONICA MINOLTA OPTO, INC. |
发明人 |
SAWAI YASUMASA |
分类号 |
G03B21/14 |
主分类号 |
G03B21/14 |
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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