19 October 2016 Injection molding lens metrology using software configurable optical test system
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Proceedings Volume 10155, Optical Measurement Technology and Instrumentation; 101551E (2016) https://doi.org/10.1117/12.2246484
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Optical plastic lens produced by injection molding machine possesses numerous advantages of light quality, impact resistance, low cost, etc. The measuring methods in the optical shop are mainly interferometry, profile meter. However, these instruments are not only expensive, but also difficult to alignment. The software configurable optical test system (SCOTS) is based on the geometry of the fringe refection and phase measuring deflectometry method (PMD), which can be used to measure large diameter mirror, aspheric and freeform surface rapidly, robustly, and accurately. In addition to the conventional phase shifting method, we propose another data collection method called as dots matrix projection. We also use the Zernike polynomials to correct the camera distortion. This polynomials fitting mapping distortion method has not only simple operation, but also high conversion precision. We simulate this test system to measure the concave surface using CODE V and MATLAB. The simulation results show that the dots matrix projection method has high accuracy and SCOTS has important significance for on-line detection in optical shop.
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Cheng Zhan, Cheng Zhan, Dewen Cheng, Dewen Cheng, Shanshan Wang, Shanshan Wang, Yongtian Wang, Yongtian Wang, } "Injection molding lens metrology using software configurable optical test system ", Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101551E (19 October 2016); doi: 10.1117/12.2246484; https://doi.org/10.1117/12.2246484

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