Time-of-flight sensors

Time-of-flight (ToF) sensors measure distance by emitting a light signal—usually infrared—and timing how long it takes for the light to reflect back from an object. The sensor calculates the distance based on the travel time, as light's speed is constant. This technology allows for accurate 3D mapping and object detection in real-time, commonly used in smartphones for camera focus, robotics, and augmented reality. ToF sensors are appreciated for their fast and precise measurements, making them essential in applications requiring spatial awareness and depth perception.