Electrowetting-based liquid lenses for endoscopy

S. Kuiper

doi:10.1117/12.879133

14 February 2011 Electrowetting-based liquid lenses for endoscopy

S. Kuiper

Proceedings Volume 7930, MOEMS and Miniaturized Systems X; 793008 (2011) https://doi.org/10.1117/12.879133
Event: SPIE MOEMS-MEMS, 2011, San Francisco, California, United States

Abstract

In endoscopy there is a need for cameras with adjustable focus. In flexible and capsule endoscopes conventional focus systems are not suitable, because of restrictions in diameter and lens displacement range. In this paper it is shown that electrowetting-based variable-focus liquid lenses can provide a solution. A theoretical comparison is made between displacing and deforming lenses, and a demonstrator was built to prove the optical feasibility of focusing with liquid lenses in endoscopes.

Citation Download Citation

S. Kuiper "Electrowetting-based liquid lenses for endoscopy", Proc. SPIE 7930, MOEMS and Miniaturized Systems X, 793008 (14 February 2011); https://doi.org/10.1117/12.879133

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