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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 1, Iss. 12 — Dec. 18, 2006

Adaptive liquid crystal lens with large focal length tunability

Hongwen Ren and Shin-Tson Wu  »View Author Affiliations

Optics Express, Vol. 14, Issue 23, pp. 11292-11298 (2006)

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We demonstrate a tunable-focus lens using a spherical glass shell and a homogeneous liquid crystal (LC) cell. The inner surface of the glass shell and the bottom surface of the LC cell are coated with indium tin oxide (ITO) electrodes while the LC layer is sandwiched between the spherical and flat ITO electrodes. When a voltage is applied to the electrodes, a centro-symmetric gradient refractive index is generated within the LC layer and the focusing behavior occurs. Based on our analysis, the focal length tunability of the LC lens depends significantly on the filled material in the sag region. For the air-filled LC lens we designed, its focal length can be tuned from infinity to ~96 cm. A method for reducing the operating voltage is proposed.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(160.3710) Materials : Liquid crystals
(220.3620) Optical design and fabrication : Lens system design

ToC Category:
Optical Devices

Original Manuscript: September 18, 2006
Revised Manuscript: November 2, 2006
Manuscript Accepted: November 4, 2006
Published: November 13, 2006

Virtual Issues
Vol. 1, Iss. 12 Virtual Journal for Biomedical Optics

Hongwen Ren and Shin-Tson Wu, "Adaptive liquid crystal lens with large focal length tunability," Opt. Express 14, 11292-11298 (2006)

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  1. V. V. Presnyakov, K. E. Asatryan, and T. V. Galstian, "Polymer-stabilized liquid crystal for tunable microlens applications," Opt. Express. 10, 865-870 (2002). [PubMed]
  2. H. Ren and S. T. Wu, "Tunable electronic lens using a gradient polymer network liquid crystal," Appl. Phys. Lett. 82, 22-24 (2003). [CrossRef]
  3. A. F. Naumov, G. D. Love, M. Yu. Loktev, and F. L. Vladimirov, "Control optimization of spherical modal liquid crystal lenses," Opt. Express 4, 344-352 (1999). [CrossRef] [PubMed]
  4. N. A. Riza and M. C. DeJule, "Three-terminal adaptive nematic liquid crystal lens device," Opt. Lett. 19, 1013-1015 (1994). [CrossRef] [PubMed]
  5. M. Ye and S. Sato, "Optical properties of liquid crystal lens of any size," Jpn. J. Appl. Phys.,  41, L571-L573 (2002). [CrossRef]
  6. S. Sato, "Liquid-crystal lens-cells with variable focal length," Jpn. J. Appl. Phys. 18, 1679-1684 (1979). [CrossRef]
  7. B. Wang, M. Ye, M. Honma, T. Nose, and S. Sato, "Liquid crystal lens with spherical electrode," Jpn. J. Appl. Phys. 41, L1232 -L1233 (2002). [CrossRef]
  8. H. Ren, Y. H. Fan, S. Gauza, and S. T. Wu, "Tunable flat liquid crystal spherical lens," Appl. Phys. Lett. 84, 4789-4791(2004).
  9. B. Wang, M. Ye, and S. Sato, "Lens of electrically controllable focal length made by a glass lens and liquid crystal layers," Appl. Opt. 43, 3420-3425 (2004). [CrossRef] [PubMed]
  10. Y. H. Fan, H. Ren, X. Liang, H. Wang, and S. T. Wu, "Liquid crystal microlens arrays with switchable positive and negative focal lengths," J. Disp. Technol. 1, 151 - 156 (2005). [CrossRef]
  11. J. W. Goodman, Introduction to Fourier Optics (McGraw-Hill, New York, 1968).
  12. S. T. Wu and D. K. Yang, Reflective Liquid Crystal Displays (Wiley, New York, 2001).
  13. S. Gauza, H. Wang, C. H. Wen, S. T. Wu, A. J. Seed and R. Dąbrowski, "High birefringence isothiocyanato tolane liquid crystals," Jpn. J. Appl. Phys. Part 1,  42, 3463-3466 (2003). [CrossRef]

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