| 发明名称 |
High contrast projection |
| 摘要 |
An optical system and method of increasing the contrast of a projected image. The optical system 1800 comprises a combination of aperture stops 1810, 1812 in at least one of the illumination and projection paths to filter scattered light and/or light prone to scatter into the projection aperture.
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| 申请公布号 |
US2003147052(A1) |
申请公布日期 |
2003.08.07 |
| 申请号 |
US20020331518 |
申请日期 |
2002.12.30 |
| 申请人 |
PENN STEVEN M.;DEWALD D. SCOTT |
发明人 |
PENN STEVEN M.;DEWALD D. SCOTT |
| 分类号 |
G02B26/08;H04N5/74;H04N9/31;(IPC1-7):G03B21/00 |
主分类号 |
G02B26/08 |
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