发明名称 |
Television receiver projection system |
摘要 |
An economical system for magnifying and projecting the image generated on a television receiver cathode ray tube employs a vertical deflection reversing switch to invert and laterally reverse the image, and a three element lens within a light-proof projection chamber to re-invert, magnify and project the image onto a forward projection type reflective screen. The projection chamber utilizes a white diffuse reflective surface upon its inner walls to increase the intensity of the projected image without visibly reducing the resolution of the image. The system also utilizes a cylindrical lens assembly to provide a simplified focusing arrangement.
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申请公布号 |
US4181918(A) |
申请公布日期 |
1980.01.01 |
申请号 |
US19780894574 |
申请日期 |
1978.04.07 |
申请人 |
DUSSEAU, CORTLAND R;WARMAN, ROBERT E |
发明人 |
DUSSEAU, CORTLAND R;WARMAN, ROBERT E |
分类号 |
H04N5/74;(IPC1-7):H04N5/74;H04N5/64;H04N5/72 |
主分类号 |
H04N5/74 |
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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