An electrically tunable focusing pico projection system based on a liquid crystal lens adopting a liquid crystal and polymer composite film

Hung Chun Lin, Ming Syuan Chen, Yi-Hsin Lin*

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

An electrically tunable liquid-crystal-on-silicon (LCOS)-based pico projection system based on a liquid crystal lens adopting a liquid crystal and polymer composite film (LCPCF) is demonstrated. The LC lens consists of two built-in sub-lenses: one is an electrically tunable focusing lens controlled by a LC layer and the other is a fixed focused LCPCF lens. The electrically tunable focusing range of the pico projection system is 200 cm to ~ 7 cm when the voltage is from 0 to 35 Vrms. The image performance is also demonstrated. The related optical analysis is discussed. This study opens a new window for electrically tunable focusing pico projection system.

Original languageEnglish
Pages (from-to)477-484
Number of pages8
JournalJournal of Nonlinear Optical Physics and Materials
Volume20
Issue number4
DOIs
StatePublished - 1 Jan 2011

Keywords

  • LC lenses
  • Liquid crystal lenses
  • Liquid crystals
  • Projection
  • Tunable focusing

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