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Proceedings Paper

Two-wavelength interferometry in the manufacture process of high-aspheric surfaces
Author(s): Sergio Vazquez-Montiel; M. A. C. Rodriguez-Hernandez
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Paper Abstract

Usually the fabrication of a conic or aspheric surfaces begins with the best-fit sphere and by removing the glass surplus the desired aspheric surface can be obtained. If the aspherical surface have a large focal ratio and small conic constant the manufacture process is easy. But when the focal ratio is small or the conic constant is large this process is very hard. We propose to use two-wavelengths interferometry for testing the surface in the grinding process, because with this method is possible to obtain interference fringes of rough surfaces.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437106
Show Author Affiliations
Sergio Vazquez-Montiel, National Institute of Astrophysics, Optics, and Electronics (Mexico)
M. A. C. Rodriguez-Hernandez, National Institute of Astrophysics, Optics, and Electronics (Mexico)


Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications

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