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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 22 — Aug. 1, 2009
  • pp: 4375–4380

Fabrication and characterization of aspherical lens manipulated by electrostatic field

Zhenxian Zhan, Keyi Wang, Haitao Yao, and Zhaolou Cao  »View Author Affiliations


Applied Optics, Vol. 48, Issue 22, pp. 4375-4380 (2009)
http://dx.doi.org/10.1364/AO.48.004375


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Abstract

An aspherical lens is fabricated from an ultraviolet (UV) curable polymer and is characterized by measuring its focal spot. Electrostatic force is employed to manipulate the shape of the liquid polymer lens. Experiment results show that a liquid lens in a strong electrostatic field can be distorted from initial spherical shape to parabolic to even near cone shape. With in situ measurement of the surface profile and focal spot, an aspherical liquid lens with good performance can be cured to a solid aspherical lens by UV light. A probe scanning microscope is employed to accurately measure the focal spot of the aspherical lens, and the modulation transfer function (MTF) of the aspherical lens is calculated to characterize it. A focal spot of 1.825 μm diameter, an MTF of 800  line pair s / mm cutoff spatial frequency, and a Strehl ratio of 0.742 are achieved. These demonstrate the feasibility of fabricating an aspherical lens with small aberrations by using this method.

© 2009 Optical Society of America

OCIS Codes
(080.3630) Geometric optics : Lenses
(110.4100) Imaging systems : Modulation transfer function
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.1250) Optical design and fabrication : Aspherics

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: June 15, 2009
Revised Manuscript: July 11, 2009
Manuscript Accepted: July 12, 2009
Published: July 22, 2009

Citation
Zhenxian Zhan, Keyi Wang, Haitao Yao, and Zhaolou Cao, "Fabrication and characterization of aspherical lens manipulated by electrostatic field," Appl. Opt. 48, 4375-4380 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-22-4375

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