- 专利标题: Switchable liquid crystal fresnel lens
-
申请号: US14452190申请日: 2014-08-05
-
公开(公告)号: US09933685B2公开(公告)日: 2018-04-03
- 发明人: Abhishek Kumar Srivastava , Xiaoqian Wang , Vladimir Grigorievich Chigrinov , Hoi-Sing Kwok
- 申请人: The Hong Kong University of Science and Technology
- 申请人地址: CN Hong Kong
- 专利权人: The Hong Kong University of Science and Technology
- 当前专利权人: The Hong Kong University of Science and Technology
- 当前专利权人地址: CN Hong Kong
- 代理机构: Leydig, Voit & Mayer, Ltd.
- 主分类号: G02F1/141
- IPC分类号: G02F1/141 ; G02F1/29 ; G02F1/1337 ; G02F1/1335
摘要:
A liquid crystal Fresnel lens is provided. The liquid crystal Fresnel lens includes a liquid crystal cell and two polarizers. The liquid crystal cell includes: two transparent substrates having conducting layers disposed thereon with alignment layers, wherein an alignment pattern formed by the alignment layers are configured to provide multiple alignment domains in a Fresnel zones pattern, and wherein an easy axis of adjacent alignment domains are oriented at an angle relative to one another; and a ferroelectric liquid crystal layer disposed between the two transparent substrates, wherein the ferroelectric liquid crystal layer has a planar surface orientation and smectic layers perpendicular to the two transparent substrates. The liquid crystal cell is disposed between the two polarizers.
公开/授权文献
- US20150036084A1 SWITCHABLE LIQUID CRYSTAL FRESNEL LENS 公开/授权日:2015-02-05
信息查询
IPC分类: