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Proceedings Paper

Low spherical aberration of the focal length tunable liquid lens
Author(s): YiQuan Liu; ChenGuang Zhang; JianGuo Xin
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Paper Abstract

For the liquid lens based on electro-wetting, the optical aperture influences the profile of the liquid drop due to the capillary effect, therefore, it will has an effect on the aberration of liquid lens. The spherical aberration caused by the different optical apertures with the different slope has been investigated by ray tracing. The analysis results have shown that the absolute value of positive and negative spherical aberration at the aperture of 4mm goes down by 2μm when the optical aperture goes up from 4.2mm to 5mm and that gradient of positive spherical aberration decrease with increasing optical aperture, that gradient of negative spherical aberration increase with increasing optical aperture. The critical turning voltage when spherical aberration changes from positive to negative is independent of optical aperture.

Paper Details

Date Published: 4 March 2015
PDF: 8 pages
Proc. SPIE 9521, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I, 952105 (4 March 2015); doi: 10.1117/12.2087091
Show Author Affiliations
YiQuan Liu, Beijing Institute of Technology (China)
ChenGuang Zhang, Beijing Institute of Technology (China)
JianGuo Xin, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 9521:
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I
Xun Hou; Zhihong Wang; Lingan Wu; Jing Ma, Editor(s)

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