Supported by domestic dToF sensors, laser focusing returns to flagship phones 2

The laser focusing system uses a laser emitter that emits a low-power infrared laser beam and then receives the reflected laser through a dToF sensor. This method makes laser focusing particularly effective in quickly and accurately focusing on distant objects. It also greatly improves the continuous autofocus performance during video shooting, making the shooting process smoother.diode

The development and application of domestically produced dToF sensors not only demonstrate China's progress in high-end manufacturing and semiconductor technology, but also represent a deep understanding of domestic consumer demand. With the arrival of the 5G era, consumers have increasingly high demands for smartphone photography functions, and fast and accurate focusing technology is one of the key to improving user experience.diode

The dToF sensor provides MIPI CSI-2 interface that supports histogram mode and DSP mode data formats. Using the CSI-2 single channel interface, the sensor can transmit images at a speed of 30 frames per second at full resolution. The sensor contains an MCU internally, which is used to implement software patches and enhance the programmability of the system, and integrates the chip vision Gen2 DSP deep signal processing module, which can improve accuracy and resistance to environmental noise.diode

It also integrates a lighting controller and an SPI interface, allowing downstream LDD (laser diode driver) configuration in the ToF module, enabling sensors to directly access calibration data and firmware code in module memory (such as EEPROM or Flash).diode