MEMS LiDAR Solution Exhibits Precise Scanning for Autonomous Vehicles

摘要

Mitsubishi Electric Corporation has developed a compact light-detection and ranging (LiDAR) solution incorporating a micro electro mechanical system (MEMS) that achieves an extra-wide horizontal scanning angle to accurately detect the shapes and distances of objects ahead in autonomous driving systems. The new LiDAR solution irradiates objects by laser and uses a dual-axis (horizontal and vertical) MEMS mirror to scan for the reflected light, generating three-dimensional images of vehicles and pedestrians. Mitsubishi Electric expects this compact, low-cost solution to contribute to the realization of safe, secure autonomous driving. After objects are irradiated by laser, the maximum amount of reflected light must be collected in order to obtain the most precise three-dimensional images, particularly of vehicles and pedestrians. LiDAR systems therefore require mirrors with a large surface area in order to maximize light collection. Additionally, a wide scanning angle is required for accurate vehicle periphery monitoring.