A fast response and large electrically tunable-focusing imaging system based on switching of two modes of a liquid crystal lens

Hung Chun Lin, Yi-Hsin Lin*

*Corresponding author for this work

Research output: Contribution to journalArticle

58 Scopus citations

Abstract

We demonstrated a fast response and large tunable focusing imaging system consisting of a lens module and a liquid crystal (LC) lens based on the switching of two modes of a LC lens: the negative LC lens and positive LC lens. By discarding the conventional operation of a positive LC lens only in the imaging system, large tunable focusing range can be achieve from 300 to 10 cm owning to the phase change between the positive and the negative LC lens; meanwhile, the response time is fast (∼433ms). The potential applications are autofocused cell phones, and cameras.

Original languageEnglish
Article number063505
JournalApplied Physics Letters
Volume97
Issue number6
DOIs
StatePublished - 9 Aug 2010

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