3D cameras are not a single brand but a category of devices used for capturing three-dimensional images and depth information. They are utilized across various industries, including manufacturing, robotics, healthcare, and entertainment. Leading companies in this field include Intel (USA) with their RealSense cameras, Stereolabs (USA/France) known for ZED cameras, and Occipital (USA) offering Structure Sensor. These products enable applications like 3D scanning, motion tracking, and augmented reality. Industrial suppliers like Radwell and Grainger often distribute such equipment for automation and quality control purposes.