In fields such as smartphones, autonomous driving, and industrial inspection, accurate perception of the three-dimensional shape and spatial position of objects is the core of achieving intelligence. 3D sensing technology constructs three-dimensional models through laser, infrared, or structured light, becoming the visual nerve for machines to understand the world, and is widely used in scenes that require spatial interaction and environmental cognition. ​

In the field of consumer electronics, 3D sensing is a key entry point for intelligent interaction. The 3D structured light module installed on smartphones projects tens of thousands of infrared light spots to form a light spot matrix. After capturing distorted images with a camera, depth information is calculated, and a facial 3D model can be constructed within a range of 0.2-2.5 meters. The unlocking speed is only 0.3 seconds and the error rate is less than one in a million, making it safer than traditional 2D face recognition. In AR (augmented reality) applications, 3D sensors can scan the surrounding environment in real-time, allowing virtual objects to accurately fit the real space. Users can preview furniture placement effects through their mobile phones, driving a 40% increase in online home retail conversion rates. Its miniaturized design (module thickness<5mm) has been adapted to devices such as tablets and smartwatches, expanding the biometric capabilities of wearable devices. ​

In the field of autonomous driving and robotics, 3D sensing is the safety core of environmental perception. Lidar, as a typical application of 3D sensing, emits laser beams to scan the surrounding environment, generating millions of point cloud data per second, constructing a three-dimensional road condition within 150 meters of the vehicle, and using algorithms to identify pedestrians, obstacles, and lane lines, providing centimeter level spatial information for autonomous driving decision-making. In storage robots, 3D vision sensors can recognize the shape and position of irregular goods, guide the robotic arm to complete grasping and palletizing, improve sorting efficiency by more than 50%, and reduce error rates to below 0.1%. Its anti strong light interference ability (stable operation under 100000 lux light) ensures reliable operation around the clock. ​

In the fields of industrial quality inspection and medical care, 3D sensing enables precise measurement and auxiliary diagnosis. In the inspection of automotive parts, the 3D vision system can quickly scan the surface defects and dimensional deviations of the engine cylinder block, with a measurement accuracy of ± 0.01mm and a detection efficiency 10 times that of manual labor. In orthopedic surgery, 3D sensing technology assists doctors in planning the position of implants by scanning a three-dimensional model of the patient's bone before surgery. During surgery, real-time tracking of the relative position between instruments and bones is performed to control surgical errors within 1mm and improve the success rate of prosthesis replacement. In the protection of cultural relics, the three-dimensional form of cultural relics is fully recorded through 3D scanning, providing accurate data for restoration, replication, and digital archiving, and avoiding direct damage to cultural relics. ​