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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 18 — Sep. 4, 2006
  • pp: 8031–8036

Tunable-focus liquid lens controlled using a servo motor

Hongwen Ren, David Fox, P. Andrew Anderson, Benjamin Wu, and Shin-Tson Wu  »View Author Affiliations

Optics Express, Vol. 14, Issue 18, pp. 8031-8036 (2006)

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We demonstrated a liquid lens whose focal length can be controlled by a servo motor. The lens cell is composed of elastic membrane, planar glass plate, a periphery sealing ring, and a liquid with a fixed volume in the lens chamber. Part of the periphery sealing ring is excavated to form a hollow chamber which functions as a reservoir. This hollowed periphery is surrounded by an exterior rubber membrane. The arm of a servo motor is used to deform the elastic rubber. Squeezing the liquid contained in the reservoir into the lens chamber. Excess liquid in the lens chamber will push the lens membrane to outward, resulting in a lens shape change. Due to the compact structure and easy operation, this liquid lens has potential applications in zoom lenses, auto beam steering, and eyeglasses.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(220.3620) Optical design and fabrication : Lens system design

ToC Category:
Adaptive Optics

Original Manuscript: July 3, 2006
Revised Manuscript: August 7, 2006
Manuscript Accepted: August 17, 2006
Published: September 1, 2006

Virtual Issues
Vol. 1, Iss. 10 Virtual Journal for Biomedical Optics

Hongwen Ren, David Fox, P. Andrew Anderson, Benjamin Wu, and Shin-Tson Wu, "Tunable-focus liquid lens controlled using a servo motor," Opt. Express 14, 8031-8036 (2006)

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