Variable-focal-length lens using an electrooptic e

专利名称：Variable-focal-length lens using an

electrooptic effect

发明人：Yoshifumi Nishimoto申请号：US06/359034申请日：19820317公开号：US04466703A公开日：19840821

摘要：A novel arrangement of variable-focal-length lens using an electrooptic effect isprovided. A variable electric field is applied to an electrooptic crystal to produce thereina refractive index distribution having a lens action. The applied electric field is such thatthe intensity distribution of the lens varies along one direction in a plane normal to thedirection of the light incidence but which has a uniform intensity distribution in thedirection normal to this direction. A two-dimensional variable-focal-length lens isobtained by combining two such one-dimensional lenses in such manner that the two-lenses intersect each other at right angles with respect to the direction of the lens action.Also, a refractive index distribution having a two-dimensional lens action is produced toform a variable-focal-length lens when an electric field having an intensity distributionwhich varies within the plane normal to the direction of the incident light is applied to theelectrooptic crystal.

申请人：CANON KABUSHIKI KAISHA

代理机构：Fitzpatrick, Cella, Harper & Scinto

更多信息请下载全文后查看