Detection method and device of surface shape of optical aspheric surface
A detection method and detection device technology, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of complex manufacturing and poor versatility, and achieve the effect of simple structure, strong versatility, and high measurement accuracy
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[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0029] The embodiment of the present invention provides a method for detecting the shape of an optical aspheric surface. The method includes: irradiating the reverse compensation fringe from the projection direction onto the measured aspheric surface, and then the measured aspheric surface is reflected and imaged by the imaging system. According to the modulation fringe of the aspheric surface shape information, the surface shape deviation of the aspheric surface is obtained according to the modulation fringe, and the processing condition of the measured aspheric surface is determined according t
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