Thin-film optical components
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专利名称：Thin-film optical components
发明人：Purvis, Alan,Clark, Michael George
申请号：EP87306617.9
申请日：19870727
公开号：EP0258996A2
公开日：
19880309
专利内容由知识产权出版社提供
专利附图：
摘要：An optical component (1) comprises a thin film (2) of an electrically controllable birefringent material confined between substantially planar surfaces (3, 5). A respective electrode structure (9, 11) is provided on each of the surfaces, each electrode structure being patterned such that an electric field applied across the film by means of the
electrode structures, when a voltage is applied therebetween, causes modulation of the refractive index tensor of the material such that the wavefront of electromagnetic radiation incident on the component and transmitted through the thin film is divided into Fresnel zones. Crossed polarisers (17, 19) are located on opposite sides of the component.
申请人：Purvis, Alan,THE GENERAL ELECTRIC COMPANY, p.l.c.
地址：School of Engineering and Applied Science South Road Durham DH1 3LE GB,1 Stanhope Gate London W1A 1EH GB
国籍：GB,GB
代理机构：George, Sidney Arthur
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