发明名称 |
COLLIMATOR |
摘要 |
<p>PCT No. PCT/GB98/01203 Sec. 371 Date Oct. 25, 1999 Sec. 102(e) Date Oct. 25, 1999 PCT Filed Apr. 24, 1998 PCT Pub. No. WO98/49585 PCT Pub. Date Nov. 5, 1998A collimator is formed of a stack of layers (11) of different thicknesses in a way analogous to a low-pass interference filter. When illuminated by narrow-band light of a predetermined wavelength just within the pass band of the filter, the collimator preferentially transmits light incident within a predetermined angular range, usually near-normal. The collimator is especially useful with photoluminescent liquid-crystal display, having phosphor emitters (17), because the collimator layers can simply be deposited on one face of the liquid-crystal modulator (1).</p> |
申请公布号 |
EP0978004(A1) |
申请公布日期 |
2000.02.09 |
申请号 |
EP19980917467 |
申请日期 |
1998.04.24 |
申请人 |
THE SECRETARY OF STATE FOR DEFENCE |
发明人 |
DAVEY, ANTHONY, BERNARD;BAYLEY, PAUL, ANDREW;COKER, TIMOTHY, MARTIN;CROSSLAND, WILLIAM, ALDEN |
分类号 |
G02B5/28;G02B27/30;G02F1/1335;G02F1/13357;(IPC1-7):G02B5/28;G02F1/133 |
主分类号 |
G02B5/28 |
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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