[OPTICAL REVIEW Vol. 14, No. 4 (2007) 173-175]
© 2007 The Optical Society of Japan

Properties of Variable-Focus Liquid Crystal Lens and Its Application in Focusing System

Mao YE1, Bin WANG1, Takeshi TAKAHASHI1,2, and Susumu SATO1

1Department of Electrical and Electronic Engineering, Akita University, Tegatagakuen-cho, Akita 010-8502, Japan
2Sankyo Kogaku Industries, Ltd., Misato-cho, Senboku, Akita 019-1302, Japan

(Received January 15, 2007; Accepted May 18, 2007)

The properties of two-voltage driving liquid crystal lens are discussed. One voltage is maintained unchanged and the other one tunes the lens properties. The lens power changes in a wide range. It decreases monotonically with increasing controlling voltage. The focusing function for a camera with the liquid crystal lens is demonstrated.

Key words: liquid crystal lens, focus, lens power, voltage, focusing lens