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Proceedings Paper

Injection molding lens metrology using software configurable optical test system
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Paper Abstract

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.

Paper Details

Date Published: 19 October 2016
PDF: 8 pages
Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101551E (19 October 2016); doi: 10.1117/12.2246484
Show Author Affiliations
Cheng Zhan, Beijing Institute of Technology (China)
Dewen Cheng, Beijing Institute of Technology (China)
Shanshan Wang, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 10155:
Optical Measurement Technology and Instrumentation
Sen Han; JiuBin Tan, Editor(s)

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