1 April 1998 Aspheric surface testing with a liquid compensatory interferometer
Author Affiliations +
Optical Engineering, 37(4), (1998). doi:10.1117/1.601970
Abstract
A simple method of testing deep aspheric surfaces is presented. The apparatus consists of a Twyman-Green interferometer and a liquid compensatory container. Two lenses, one with spherical surfaces and the other with a spherical surface and an aspheric surface, were tested by using this method. The device is very simple and easy to assemble.
Zhisheng Yun, Zhongben L. Liu, Yulin Li, "Aspheric surface testing with a liquid compensatory interferometer," Optical Engineering 37(4), (1 April 1998). http://dx.doi.org/10.1117/1.601970
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KEYWORDS
Aspheric lenses

Liquids

Refractive index

Interferometers

Spherical lenses

Interferometry

Optical components

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