Two-wavelength interferometry in the manufacture process of high-aspheric surfaces

Sergio Vazquez-Montiel; M. A. C. Rodriguez-Hernandez

doi:10.1117/12.437106

14 August 2001 Two-wavelength interferometry in the manufacture process of high-aspheric surfaces

Sergio Vazquez-Montiel, M. A. C. Rodriguez-Hernandez

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437106
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

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.

Citation Download Citation

Sergio Vazquez-Montiel and M. A. C. Rodriguez-Hernandez "Two-wavelength interferometry in the manufacture process of high-aspheric surfaces", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437106

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