Method for detecting nonzero digit compensation light-degree optical aspheric surface profile
A surface shape detection and aspheric technology, which is applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of manufacturing error adjustment, prolonging the construction period, increasing the cost, etc., achieving simple data processing and mathematical operations, and low detection costs. , the effect of shortening the test time
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[0021] Such as figure 1 As shown, the device for realizing the non-zero compensation shallow optical aspheric surface shape detection method of the present invention includes an interferometer 1, a transmission ball 2 and a computer 7. The transmission sphere 2 is fixed at the light hole of the interferometer 1. The parallel light emitted by the interferometer 1 is transformed into a standard spherical wave by the transmission sphere 2. The standard spherical wave is incident on the aspheric surface 3 to be measured as a reference spherical wave. Measure the reflection of the aspheric surface 3 and return to the interferometer 1. The optical aspheric surface 3 to be measured is fixed on the first adjustment mechanism 4, and the interferometer 1 is fixed on the second adjustment mechanism 5. The computer 7 controls the action of the first adjustment mechanism 4 through the first numerical control device 8 to adjust the translation and rotation of the optical aspheric surface 3 t...
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