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Methods and apparatus for focus improvement in multiple liquid crystal cell lenses
专利权人:
LensVector Inc.
发明人:
Peter Clark,Tigran Galstian,Karen Asatryan,Vladimir Presniakov,Aram Bagramyan,Amir Tork,Armen Zohrabyan,Simon Careau
申请号:
US14777086
公开号:
US10503042B2
申请日:
2014.03.12
申请国别(地区):
US
年份:
2019
代理人:
摘要:
A liquid crystal optical device is provided including at least two LC cells. A first LC cell layer has a predominant director orientation imparting a transversally non-uniform phase delay to a first polarization of an unpolarized incident light field passing therethrough while incident light of a second polarization orthogonal to the first light polarization passes therethrough undergoing transversally uniform phase delay. The first LC cell is configured to project a center extraordinary ray onto an optical axis of the device at the image surface. A second LC cell layer has a predominant director oriented orthogonally to the other predominant director in a plane perpendicular to the optical axis. The second LC layer imparts a transversally non-uniform phase delay to the second polarization of the incident light passing therethrough, the second LC cell being configured to project a center ordinary ray onto the optical axis at the image surface.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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