Abstract
In this work, a design of a compact optical MEMS-based lidar scanning system with a large field of view (FOV) and small distortion is presented. The scanning system applies an off-axis structure and the length of the system can be reduced to about 10 cm in an optimized way. Simulation results show that a large FOV is achieved under a uniform scanning scheme. In addition, the spot size less than 20 cm at distance of 100 m is also realized. The optical scanning system can be used for the vehicle-mounted Lidar.
Highlights
With the emerging needs for high-resolution light detection and ranging (LIDAR) technologies in advanced driving assistance systems (ADASs), a new generation 3D image lidar system that takes advantage of a micro-electro-mechanical-system (MEMS) scanner approach has been investigated widely [1] [2]
This paper presents a design of compact scanning system with a large scan field of view (FOV) for 3D image lidars
As a lidar scanning system for autonomous vehicle applications, the optical performances are determined by FOV, scan linearity and spot size in long distance
Summary
With the emerging needs for high-resolution light detection and ranging (LIDAR) technologies in advanced driving assistance systems (ADASs), a new generation 3D image lidar system that takes advantage of a micro-electro-mechanical-system (MEMS) scanner approach has been investigated widely [1] [2]. In this lidar system, the MEMS scanning mirror is considered as key component because of its huge advantages, including fast scanning speed, low weight, flexibility, low power consumption [3].
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