Abstract

A new dual focal point electro-optic lens that is switchable to focusing and unfocusing is proposed and successfully demonstrated. This electro-optic lens is constructed by coating transparent fine electrodes in the Fresnel-zone plate onto a PLZT ceramic plate. Its focal length changes from 1.25 m to binary at 515 nm with the external voltage of 210 V.

© 1992 Optical Society of America

Electro-optic variable focal-length lens using PLZT ceramic

Tsuyoshi Tatebayashi, Takashi Yamamoto, and Heihachi Sato
Appl. Opt. 30(34) 5049-5055 (1991)

Design of a dual-effect lens on lanthanum-modified lead zirconate titanate for continuous variation of focal length

Francisco Castro and Bahram Nabet
Appl. Opt. 34(13) 2317-2323 (1995)

Electrically controlled Fresnel zone plates made from ring-shaped 180° domains

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Opt. Express 12(23) 5783-5788 (2004)

Electro-optic beam-steering device based on a lanthanum-modified lead zirconate titanate ceramic wafer

Qi Wang Song, Xu-Ming Wang, Rebecca Bussjager, and Joseph Osman
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Zone plates with black focal spots

Salvador Bara Viñas, Zbigniew Jaroszewicz, Andrzej Kolodziejczyk, and Maciej Sypek
Appl. Opt. 31(2) 192-198 (1992)