Abstract
AbstractHigh-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.KeywordsFly-eyesDMDUniformity
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