发明授权
- 专利标题: Diffraction grating with electrically controlled periodicity
- 专利标题(中): 具有电控周期性的衍射光栅
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申请号: US09145506申请日: 1998-09-02
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公开(公告)号: US06188462B1公开(公告)日: 2001-02-13
- 发明人: Oleg D. Lavrentovich , Darius Subacius
- 申请人: Oleg D. Lavrentovich , Darius Subacius
- 主分类号: G02F1133
- IPC分类号: G02F1133
摘要:
The present invention is directed to liquid crystal diffraction gratings with electrically controlled periodicity. An electrical field is applied to liquid crystal device wherein the liquid crystals align to form a diffraction grating. The period of the diffraction grating is varied by changing the applied electrical field. The diffraction grating therefore has a period that can be varied by an electrical field.
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