发明名称 |
BEAM SHAPERS USING ELECTRICALLY CONTROLLABLE SCATTERING |
摘要 |
The present invention relates to a device (200) for electrically controlling shaping of a light beam. The device comprises primary optics (202) that is arranged to shape the light beam originating from a light source (201). The device further comprises an electrically controllable optical element (203) arranged to change the direction of the light falling onto it, when the element is in a light-redirecting mode. The optical element can be an electrically controllable scattering element e.g. created by using a PDLC material or an LC gel. The degree of light redirection of the optical element is controlled by applying an electric field to the LC material. Finally, the device comprises secondary optics (204) arranged to shape the scattered, diffracted or refracted light beam from the optical element.
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申请公布号 |
US2009027891(A1) |
申请公布日期 |
2009.01.29 |
申请号 |
US20050577059 |
申请日期 |
2005.10.10 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS, N.V. |
发明人 |
HIKMET RIFAT ATA MUSTAFA;ANSEMS JOHANNES PETRUS MARIA;HOELEN CHRISTOPH GERARD AUGUST;VAN BOMMEL TIES;WANG LINGLI |
分类号 |
F21V7/00 |
主分类号 |
F21V7/00 |
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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