DocumentCode
2749461
Title
An electrically tunable LCOS pico projector with optical zoom
Author
Chen, Ming-Syuan ; Lin, Hung-Chun ; Lin, Yi-Hsin
Author_Institution
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear
2011
fDate
9-13 Oct. 2011
Firstpage
459
Lastpage
460
Abstract
An electrically tunable zooming LCOS pico projector using composite liquid crystal (LC) lenses is demonstrated. The composite 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 polymeric lens. The zoom ratio of the electrically tunable zooming pico projector can reach 2.5:1 when the screen distance at 20 cm. The tunable focusing ranges are 200 cm to ~10 cm and the response times is around 3.8 sec. The image performance of the electrically tunable focusing LCOS pico projector is also demonstrated.
Keywords
lenses; liquid crystals; optical focusing; optical projectors; composite liquid crystal lenses; distance 200 cm to 10 cm; electrically tunable LCOS pico projector; electrically tunable focusing lens; fixed focused polymeric lens; optical zoom; Focusing; Lenses; Liquid crystal on silicon; Optical imaging; Optical polarization; Optical sensors; Polymers;
fLanguage
English
Publisher
ieee
Conference_Titel
Photonics Conference (PHO), 2011 IEEE
Conference_Location
Arlington, VA
Print_ISBN
978-1-4244-8940-4
Type
conf
DOI
10.1109/PHO.2011.6110625
Filename
6110625
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