1 April 1999 Simple technique for testing deep aspherical surfaces
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Abstract
A simple method to measure the aspherical surface of test elements by immersing them in a liquid crystal container is presented. The theory of the method is given and the experimental results of two lenses, one made of a plane surface and a spherical surface and the other with a spherical surface and an aspherical surface, are demonstrated.
Zhisheng Yun, Yee Loy Lam, Yan Zhou, Yulin Li, Zhongben L. Liu, Jian Liu, "Simple technique for testing deep aspherical surfaces," Optical Engineering 38(4), (1 April 1999). https://doi.org/10.1117/1.602078
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