Wang Ning, Jia Xin, Xing Tingwen. Test of shallow asphere using sub-aperture stitching method[J]. Infrared and Laser Engineering, 2013, 42(9): 2525-2530.
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Wang Ning, Jia Xin, Xing Tingwen. Test of shallow asphere using sub-aperture stitching method[J]. Infrared and Laser Engineering, 2013, 42(9): 2525-2530.
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Test of shallow asphere using sub-aperture stitching method
- 1.
Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China;
- 2.
University of Chinese Academy of Sciences,Beijing 100049,China
- Received Date: 2013-01-20
- Rev Recd Date:
2013-02-21
- Publish Date:
2013-09-25
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Abstract
Sub-aperture stitching technology can be used for testing large aperture optical mirrors with low-cost and high-precision and without supporting components. Based on planes and high steepness asphere, the algorithm of sub-aperture stitching for shallow asphere was detected. The mathematical model, stitching algorithm as well as the detection process were analyzed and discussed. A shallow asphere was fitted by 37 Zernike polynomials and divided by circular sub-apertures. Then the simulation of the sub-aperture stitching was completed as well as the analysis of the effect of the sub-aperture translation, tilt and random errors on stitching accuracy.
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