Liquid pressure varifocus lens

被引：35

作者：

Kuwano, R

Tokunaga, T

Otani, Y

Umeda, N

机构：

[1] Tokyo Univ Agr & Technol, Fac Engn, Dept Mech Syst Engn, Koganei, Tokyo 1848588, Japan

[2] Chiba Inst Technol, Narashino, Chiba 2750016, Japan

来源：

OPTICAL REVIEW | 2005年 / 12卷 / 05期

关键词：

varifocus lens; liquid pressure; focal length; polymer film; YAG laser processing;

D O I：

10.1007/s10043-005-0405-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A liquid pressure varifocus lens that consists of a thin polymer film and liquid is described. The lens can be continuously changed from a concave to a convex shape by driving the liquid pressure in the lens. The dynamic range of the focal length of the convex lens is from 50 to 250mm. A beam spot verifies the variable focal function on a photographic film exposed by a He-Ne laser. In addition, the application of the laser for processing is demonstrated to manufacture Fe compressed powder sheets by normal pulse YAG laser. Its melting marks along a focus change are formed with a minimum width of 0.1 mm. (c) 2005 The Optical Society of Japan.

引用

页码：405 / 408

页数：4

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