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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 14 — Jul. 12, 2004
  • pp: 3251–3256

Using curved hologram to test large-aperture convex surface

Hua Liu, Zhenwu Lu, Fengyou Li, Yongjun Xie, Shanshan Kan, and Shurong Wang  »View Author Affiliations


Optics Express, Vol. 12, Issue 14, pp. 3251-3256 (2004)
http://dx.doi.org/10.1364/OPEX.12.003251


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Abstract

A valid optical system with a computer-generated hologram fabricated on a concave lens surface, for measuring large-aperture convex surface, is demonstrated experimentally. The CGH employed in this system has been constructed using a new technology that combines laser direct writing and lithography. This technology allows precise alignment, superior linear profile and high resolution of the gratings that compose the CGH. The particular characteristics of this new type of CGH could derive higher accuracy, efficiency and lower cost for testing aspherics in comparison to other CGH employed previously by other authors. We have designed and fabricated one system and measured a 110 mm-diameter convex surface of errors 300.6 nm P-V after compensating the alignment errors. It is believed that this kind of system can be used to measure even large aperture convex surface.

© 2004 Optical Society of America

OCIS Codes
(090.1760) Holography : Computer holography
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(220.3740) Optical design and fabrication : Lithography

ToC Category:
Research Papers

History
Original Manuscript: June 17, 2004
Revised Manuscript: July 6, 2004
Published: July 12, 2004

Citation
Hua Liu, Zhenwu Lu, Fengyou Li, Yongjun Xie, Shanshang Kan, and Shurong Wang, "Using curved hologram to test large-aperture convex surface," Opt. Express 12, 3251-3256 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-14-3251


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References

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