The Prism Series from Union Image consists of stereo structured-light depth cameras combining passive stereo vision with active speckle projection for high-precision depth perception in low-light and textureless environments. With measurement range from 0.3 m to 6 m and depth accuracy of less than 2 percent at 4 m, they are used for obstacle avoidance and navigation in commercial service robots, volumetric measurement, 3D scanning, and human-machine interaction. The S200 series integrates an RGB camera for colored point cloud output, with USB 3.0, GMSL, and Gigabit Ethernet interfaces for industrial-grade reliability.