Abstract
A variable-focus liquid lens using a transparent flat cell is demonstrated. The top substrate has an aperture which is sealed with a thin elastic membrane on the outer surface and the bottom aperture is sealed on the inner surface of the bottom substrate. By applying a pressure to the outer membrane inward causes the liquid to redistribute and swell the inner membrane outward which, in turn, forms a plano-convex lens. To prove principles, a water lens with 5 mm aperture was fabricated. The resolution is better than 25 lp/mm and the response time is approximately 40 ms. Potential applications of such a lens for real-time active imaging are emphasized.
Highlights
The liquid lens cell consists of four parts
liquid with a fixed volume stored in lens cell chamber
The inner surfaces of the annular sealing ring are sealed with distensible membrane
Summary
Find similar works at: https://stars.library.ucf.edu/patents University of Central Florida Libraries http://library.ucf.edu. Recommended Citation Wu, Shin-Tson and Ren, Hongwen, "Variable Focus Liquid Lens" (2006). (54) VARIABLE FOCUS LIQUID LENS (75) Inventors: Shin-Tson Wu, Oviedo, FL (US); Hongwen Ren, Orlando, FL (US). (73) Assignee: Research Foundation of the University of Central Florida, Inc., Orlando, FL (US). ( *) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
