发明名称 |
On-axis optical system for illumination and projection of a reflective LCD microdisplay |
摘要 |
The invention is an on-axis optical projection system that displays an image on a projection surface. The optical projection system includes a light source and a reflective LCD microdisplay that modifies light from the light source to form a desired image. The LCD microdisplay reflects light toward the projection surface. A mirror reflects light from the light source in a first optical path toward the LCD microdisplay. The mirror does not affect the polarization orientation of the light reflected thereupon. A plurality of lenses are positioned within the system to focus and direct light along the first optical path and along a second optical path from the microdisplay to the projection surface. The first optical path is substantially opposite in direction to the second optical path. The plurality of lenses includes a dual-purpose lens that simultaneously transmits light along both the first optical path and the second optical path.
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申请公布号 |
US6801362(B1) |
申请公布日期 |
2004.10.05 |
申请号 |
US20020198495 |
申请日期 |
2002.07.18 |
申请人 |
ROCKWELL COLLINS |
发明人 |
BROWN ROBERT D. |
分类号 |
G03B21/00;(IPC1-7):G02B27/10;G02B27/14 |
主分类号 |
G03B21/00 |
代理机构 |
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