3D sensors for mobile applications refer to advanced sensing technologies designed for integration into smartphones, tablets, and other portable devices. These sensors are developed by various global companies, such as STMicroelectronics (Switzerland/France), Sony (Japan), and Infineon Technologies (Germany). They serve industries like consumer electronics, augmented reality (AR), and robotics by enabling depth sensing, facial recognition, and gesture control. Key products include time-of-flight (ToF) sensors, structured light modules, and stereo vision systems, which enhance user interaction and spatial awareness in mobile devices.