Temperature compensation analysis of liquid lens for variable-focus control

研究成果: Conference contribution

摘要

In this work, a fabrication and temperature compensation analysis and electrowetting for the liquid lenses is proposed. The unique capability of controlling the lens profile during the electrowetting fabrication processes is successfully demonstrated for different ambient temperature environment. For a lens fabricated on a hydrophobic Teflon layer, it is found that when the applied voltage is increased, the focal length increases, and the curvature decreases. One challenge for the liquid lens is operating temperature range. Due to the environment temperature change, the ability of controlling the lens profile is analyzed and measured. The description of change in contact angle corresponding to the variation of ambient temperature is derived. Based on this description, we firstly derive the control of voltage vs. temperature for a fixed dioptric power. The control of lens during a focusing action was studied by observation of the image formed by the light through the transparent bottom of ITO glass. Under several conditions of ambient temperature change, capability of controlling the lens profile for a fixed focus is successfully demonstrated by experiments.

原文English
主出版物標題Proceedings of SPIE - The International Society for Optical Engineering
6111
DOIs
出版狀態Published - 2006 五月 3
事件Reliability, Packaging, Testing, and Characterization of MEMS/MOEMS V - San Jose, CA, United States
持續時間: 2006 一月 252006 一月 26

Other

OtherReliability, Packaging, Testing, and Characterization of MEMS/MOEMS V
國家United States
城市San Jose, CA
期間06-01-2506-01-26

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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  • 引用此

    Chen, S. J., Tai, T. L., & Shen, C. H. (2006). Temperature compensation analysis of liquid lens for variable-focus control. 於 Proceedings of SPIE - The International Society for Optical Engineering (卷 6111). [61110S] https://doi.org/10.1117/12.644456