发明名称 |
Liquid crystal phase modulator using a ferroelectric liquid crystal with a rotatable axis and cholesteric circular polarizers |
摘要 |
This invention provides a phase modulator comprising an electro-optically rotatable smectic liquid crystal half-wave retarder in combination with a cholesteric liquid crystal circular polarizer. Rotation of the half-wave retarder varies the phase delay of the modulator. A polarizing interferometer is provided utilizing the phase modulator of this invention in combination with a second cholesteric circular polarizer and a linear polarizer. A tunable Fabry-Perot resonator which does not require ordinary mirrors is provided utilizing the phase modulator of this invention in combination with a second cholesteric circular polarizer.
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申请公布号 |
US6141069(A) |
申请公布日期 |
2000.10.31 |
申请号 |
US19970851521 |
申请日期 |
1997.05.05 |
申请人 |
UNIVERSITY TECHNOLOGY CORPORATION |
发明人 |
SHARP, GARY D.;JOHNSON, KRISTINA M.;STOCKLEY, JAY E. |
分类号 |
G02B5/30;G02F1/1347;G02F1/139;G02F1/141;(IPC1-7):G02F1/133 |
主分类号 |
G02B5/30 |
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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