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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 6 — Mar. 15, 2010
  • pp: 6014–6023

Design and fabrication of a copolymer aspheric bi-convex lens utilizing thermal energy and electrostatic force in a dynamic fluidic

Kuo-Yung Hung, Chao-Chih Fan, Fan-Gang Tseng, and Yi-Ko Chen  »View Author Affiliations


Optics Express, Vol. 18, Issue 6, pp. 6014-6023 (2010)
http://dx.doi.org/10.1364/OE.18.006014


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Abstract

The purpose of this paper is to use thermal energy and electrostatic force as an alternative to high-cost precision cutting or traditional injection molding in the fabrication of COC (cyclo-olefin copolymer) plastic aspheric bi-convex lenses with high Blu-Ray transmittance (92% at 405 nm). A glass substrate was used, and ultrasonic drilling defined the clear aperture of the aspheric bi-convex lens. The copolymer lens material was measured, filled and melted into the hole. A gradient electrical potential was applied between the top and bottom electrodes of the COC liquid droplet to control the profile of the lens. The thermal energy melted the COC into a dynamic fluid, and the electrostatic force controlled the aspheric morphology of the designed profile. The resulting lenses have a clear aperture of approximately 1.14 mm and a front focal length of 4.97 mm, and the spot size of the fabricated aspheric bi-convex lenses can be controlled to approximately 0.588 µm. This technology is capable of fabricating lenses for application in micro-optical systems.

© 2010 OSA

OCIS Codes
(160.5470) Materials : Polymers
(220.3630) Optical design and fabrication : Lenses

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: November 9, 2009
Revised Manuscript: March 2, 2010
Manuscript Accepted: March 9, 2010
Published: March 11, 2010

Citation
Kuo-Yung Hung, Chao-Chih Fan, Fan-Gang Tseng, and Yi-Ko Chen, "Design and fabrication of a copolymer aspheric bi-convex lens utilizing thermal energy and electrostatic force in a dynamic fluidic," Opt. Express 18, 6014-6023 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-6-6014


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