| 发明名称 |
OPTICAL SWITCHING DEVICES |
| 摘要 |
OPTICAL SWITCHING DEVICES An optical switch, eg. a blocking switch or a coupler switch, has a liquid crystal control element which, in at least one of its control configurations, has a splayed molecular orientation. In a preferred embodiment the liquid crystal is surrounded by chemical control surfaces, eg. by homeotropically coated control surfaces. |
| 申请公布号 |
CA1285643(C) |
申请公布日期 |
1991.07.02 |
| 申请号 |
CA19870548522 |
申请日期 |
1987.10.02 |
| 申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
WINTER, CHRISTOPHER S.;KASHYAP, RAMAN |
| 分类号 |
G02B6/00;C09K19/30;G02F1/13;G02F1/1333;G02F1/137;G02F1/31;G02F1/313 |
主分类号 |
G02B6/00 |
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