发明授权
- 专利标题: Polarization control device
- 专利标题(中): 极化控制装置
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申请号: US09502362申请日: 2000-02-29
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公开(公告)号: US06686984B1公开(公告)日: 2004-02-03
- 发明人: Charles Hoke , Gongjian Hu , Peter Robrish , Andreas Weber
- 申请人: Charles Hoke , Gongjian Hu , Peter Robrish , Andreas Weber
- 主分类号: G02F11337
- IPC分类号: G02F11337
摘要:
A polarization control device, comprising: a liquid crystal device containing a liquid crystal material with an optical anisostropy with substantially homeotropically aligned molecules when in a neutral electrical field state; a plurality of electrodes for applying an electrical field to change an orientation of the molecules of the liquid crystal material from their alignment in the neutral electrical filed state; a circuit for applying a voltage to the electrodes; and an optical system for directing light through the liquid crystal material.
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