发明名称 |
Projection optical system for a liquid crystal projector |
摘要 |
A projection optical system for a liquid crystal projector having a plurality of lenses and projecting an image from liquid crystal display devices onto a screen including a front lens portion having a meniscus lens, a first concave lens, a convex lens and a second concave lens sequentially arranged from the furthermost of an image plane. A rear lens portion is also provided having two plano-convex lenses positioned between the front lens portion and image plane (display screen), with the flat surfaces thereof facing the image plane. The projection optical system for a liquid crystal projector having a compact size and capable of projecting focused images on the screen by adjusting the distance between the front and rear lens portions.
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申请公布号 |
US5539580(A) |
申请公布日期 |
1996.07.23 |
申请号 |
US19940349983 |
申请日期 |
1994.12.06 |
申请人 |
SAMSUNG AEROSPACE INDUSTRIES, LTD. |
发明人 |
KIM, HOO-SHIK |
分类号 |
G02B13/16;G02B13/24;G02F1/13;H04N5/74;(IPC1-7):G02B3/00 |
主分类号 |
G02B13/16 |
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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