Electrically controllable microlens array fabricated by anisotropic phase separation from liquid-crystal and polymer composite materials

被引:55
作者
Ji, HS [1 ]
Kim, JH
Kumar, S
机构
[1] Hallym Univ, Dept Phys, Chunchon 200702, Kangwon Do, South Korea
[2] Kent State Univ, Dept Phys, Kent, OH 44242 USA
关键词
D O I
10.1364/OL.28.001147
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Anisotropic phase separation has been used to fabricate an electrically switchable microlens array from nematic liquid crystals. Nematic liquid-crystal-based microlens arrays have been built with diameters of similar to400 mum and natural focal lengths as small as 1.6 mm. The focal length of each microlens in the array can be changed in milliseconds by an applied electric field. These devices, which have no internal substructures to scatter light, offer higher efficiency and greater light throughput than polymer dispersed devices. (C) 2003 Optical Society of America.
引用
收藏
页码:1147 / 1149
页数:3
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