Abstract
High-speed fringe structured light projection system is one of the key technologies for real-time and efficient measurement of phase three-dimensional topography measurement system. Its function is to generate a modulated fringe pattern for three-dimensional measurement. Digital projectors based on DMD (Digital Mircomirror Device) have been widely used in three-dimensional projection fringe measurement systems due to their advantages such as high contrast, high brightness, high efficiency, and secondary development. This paper designs a high-efficiency and high-uniformity fringe projector illumination system based on DMD, with a light efficiency of 54%, a uniformity of 91.5%, and an illumination beam angle distribution of 10°–38°. The overall system size is 70 mm × 74 mm × 35 mm, which is applied to the phase three-dimensional topography measurement system, has important research significance and practical value.
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Product from Luminus. https://www.luminus.com/
Datasheet for DLP4500 .45Wwxga DMD. https://www.dlp.com
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Major Scientific Research Project of Zhejiang Lab (2019DEKF01).
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Liang, H., Shi, Y., Song, T., Chen, Y., Xu, R., Jin, S. (2021). Design of Fringe Projector Illumination System Based on Digital Mircomirror Device. In: Peng, Y., Dong, X. (eds) Proceedings of 2019 International Conference on Optoelectronics and Measurement. Lecture Notes in Electrical Engineering, vol 726. Springer, Singapore. https://doi.org/10.1007/978-981-33-4110-4_18
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DOI: https://doi.org/10.1007/978-981-33-4110-4_18
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