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23 August 2017 General testing method for refractive surfaces based on reverse Hartmann test
Ping Xu, Daodang Wang, Zhidong Gong, Zhongmin Xie, Rongguang Liang, Ming Kong, Jun Zhao, Linhai Mo, Shuhui Mo
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Proceedings Volume 10373, Applied Optical Metrology II; 103730J (2017) https://doi.org/10.1117/12.2273189
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States
Abstract
The testing technique with high dynamic range is required to meet the measurement of refractive wavefront with large distortion from test refractive surface. A general deflectometric method based on reverse Hartmann test is proposed to test refractive surfaces. Ray tracing of the modeled testing system is performed to reconstruct the refractive wavefront from test surface, in which computer-aided optimization of system geometry is performed to calibrate the geometrical error. For the refractive wavefront error with RMS 255 μm, the testing precision better than 0.5 μm is achieved.
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Ping Xu, Daodang Wang, Zhidong Gong, Zhongmin Xie, Rongguang Liang, Ming Kong, Jun Zhao, Linhai Mo, and Shuhui Mo "General testing method for refractive surfaces based on reverse Hartmann test", Proc. SPIE 10373, Applied Optical Metrology II, 103730J (23 August 2017); https://doi.org/10.1117/12.2273189
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KEYWORDS
Ray tracing
Wavefronts
Deflectometry
Glasses
Testing and analysis
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