Design of Convenient Structured Light Projection System for Microscopic Measurement

This paper presents a convenient structured light projection system for microscopic measurement, which is used to design the structured-light pattern on the computer, you can freely edit the pattern structure, color, geometric size, motion mode, projection brightness, contrast and other attributes. An optional path system with zoom function is designed, which can output 10 micron wide structured-light fringe. The vision system is established by using camera and microscope, which is used to shoot the pattern of structured-light, and the 3D morphology is reconstructed by analyzing the pattern of structured-light. The experimental results show that the system can project small feature-size structured-light patterns and is very suitable for 3D morphology measurement of micro objects from tens of microns to hundreds of microns.