Acta Photonica Sinica, Volume. 39, Issue 1, 105(2010)
A Method of Bifocal Zoom Endoscope System Design
Tunable-focus liquid lens is considered as a kind of novel device based on biological vision system,which has many advantages such as little volume and weight,easily to be integrated and active zooming. A method of designing zoom optical system without moving lens is demonstrated according the theory of Gaussian optics,in which the liquid lenses are used as core elements. And a bifocal zoom endoscope system is presented,in which the curvature of the liquid lens can be controlled by air pressure or hydraulic pressure. A zooming factor of 1.5 is realized. And the acceptable imaging quality is gotten at both focal length of 1.8 mm and 2.7 mm of the system.
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ZHANG Wei, TIAN Weijian, ZHANG Hong-jian. A Method of Bifocal Zoom Endoscope System Design[J]. Acta Photonica Sinica, 2010, 39(1): 105
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Received: Oct. 6, 2008
Accepted: --
Published Online: Mar. 11, 2010
The Author Email: Wei ZHANG (zhw@opt.ac.cn)