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Keywords = petzval surface curvature (PTZ)

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14 pages, 2870 KiB  
Article
A Study of Optical Design on 9× Zoom Ratio by Using a Compensating Liquid Lens
by Chih-Ta Yen and Jyun-Min Shih
Appl. Sci. 2015, 5(3), 608-621; https://doi.org/10.3390/app5030608 - 21 Sep 2015
Cited by 7 | Viewed by 9142
Abstract
This paper proposes using a liquid lens as a compensating lens and applying intermediate optics to achieve a 9× zoom ratio. The droplet shape and location of the liquid lens can be adjusted reversibly, enabling the focal length and position of the lens [...] Read more.
This paper proposes using a liquid lens as a compensating lens and applying intermediate optics to achieve a 9× zoom ratio. The droplet shape and location of the liquid lens can be adjusted reversibly, enabling the focal length and position of the lens to be tuned by varying the voltage applied to a set of electrodes. Therefore, liquid lenses can replace complex lenses to reduce the total length of optomechanical systems. The CODE V built-in optimization method was used to determine the optimal liquid lens parameters at various zoom ratios. Several general optical aberrations were considered. Compared with a standard intermediate optics system featuring 9× zoom and no compensating lens, the proposed lens improved the Petzval surface curvature (PTZ) and modulation transfer function (MTF). Simulation results revealed that the PTZ decreased 10.92% and the MTF increased 3988% in 40 1p/mm. Full article
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