A miniaturized adaptive-focus camera objective employing a gravity-immune liquid-tunable aspherical lens

Pengpeng Zhao; Çağlar Ataman; Hans Zappe

doi:10.1117/12.2252067

20 February 2017 A miniaturized adaptive-focus camera objective employing a gravity-immune liquid-tunable aspherical lens

Pengpeng Zhao, Çağlar Ataman, Hans Zappe

Author Affiliations +

Proceedings Volume 10116, MOEMS and Miniaturized Systems XVI; 101160C (2017) https://doi.org/10.1117/12.2252067
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

A miniaturized adaptive-focus camera objective featuring a gravity-immune liquid-tunable aspherical lens is presented. The lens, which has an aperture size of 3 mm, a nominal focal length of 8mm and an optimum tuning range between 7.2 to 8.8 mm, is experimentally demonstrated to have diffraction-limited performance at the nominal focal length with identical performance for vertical and horizontal lens orientations, leading to a drastic reduction in spherical aberration compared to conventional liquid-tunable lenses. The camera objective comprises three fixed elements and a tunable lens, arranged on a 5×5×13 mm platform. It provides a viewing angle of 40° imaged on a 3 mm sensor. By tuning the lens in its optimum operation range, the object distance can be shifted from 5mm to infinity.

Conference Presentation

Citation Download Citation

Pengpeng Zhao, Çağlar Ataman, and Hans Zappe "A miniaturized adaptive-focus camera objective employing a gravity-immune liquid-tunable aspherical lens", Proc. SPIE 10116, MOEMS and Miniaturized Systems XVI, 101160C (20 February 2017); https://doi.org/10.1117/12.2252067

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