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Optical-digital method for measuring the curvature radius of spherical surfaces

V.G. Baranov, N.Y. Ilyasova, V.V. Kotlyar, R.V. Skidanov, A.V. Ustinov

Image Processing Systems Institute of RAS

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Pages: 111-117.

Full text of article: Russian language.

Abstract:
The article investigates and compares the methods of non-contact determination of the curvature radius of a spherical surface based on the image of a slit formed on the surface and recorded by a TV camera. An optical scheme was developed for entering the image into a computer. The radius of the metal ball (6.55 mm) was determined with an accuracy of 2% based on a section of an ellipse arc with a length of about 400 pixels and a deflection of about 50 pixels.

Citation:
Baranov VG, Ilyasova NY, Kotlyar VV, Skidanov RV, Ustinov AV. Optical-digital method for measuring the curvature radius of spherical surfaces. Computer Optics 2000; 20: 111 - 117.

References:

  1. Berezinskaya DI. Fundamentals of ophthalmic diagnostics. Moscow: Medgiz; 1957.
  2. Avetisov E.S. Myopia. Moscow: Medicine; 1986.
  3. Gill PE, Murray W, Wright MH. Practical optimization. Moscow: Mir Publisher; 1985: 509.

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