Please use this identifier to cite or link to this item: https://doi.org/10.1364/AO.49.005493
Title: Liquid tunable lens integrated with a rotational symmetric surface for long depth of focus
Authors: Kang, J.
Yu, H. 
Chen, H.
Issue Date: 1-Oct-2010
Source: Kang, J.,Yu, H.,Chen, H. (2010-10-01). Liquid tunable lens integrated with a rotational symmetric surface for long depth of focus. Applied Optics 49 (28) : 5493-5500. ScholarBank@NUS Repository. https://doi.org/10.1364/AO.49.005493
Abstract: A liquid tunable lens with an extended depth of focus (DOF) is proposed. By integrating a phase plate with rotational symmetric quartic function (QF) contour into the liquid lens cavity, the lens can achieve higher tolerance to the defocus aberration. The liquid lens was fabricated with a convenient and low-cost process that combined single-point diamond turning (SPDT) with soft lithography using polydimethylsiloxane (PDMS). Experimental results demonstrate that both focal length tunability and extended DOF can be achieved with the proposed liquid lens. © 2010 Optical Society of America.
Source Title: Applied Optics
URI: http://scholarbank.nus.edu.sg/handle/10635/60651
ISSN: 00036935
DOI: 10.1364/AO.49.005493
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