Low spherical aberration of the focal length tunable liquid lens

YiQuan Liu; ChenGuang Zhang; JianGuo Xin

doi:10.1117/12.2087091

4 March 2015 Low spherical aberration of the focal length tunable liquid lens

YiQuan Liu, ChenGuang Zhang, JianGuo Xin

Proceedings Volume 9521, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I; 952105 (2015) https://doi.org/10.1117/12.2087091
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

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.

Citation Download Citation

YiQuan Liu, ChenGuang Zhang, and JianGuo Xin "Low spherical aberration of the focal length tunable liquid lens", 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); https://doi.org/10.1117/12.2087091

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