3‐3: Large‐FoV Fast LiDAR System based on Electrically Suppressed Helix Ferroelectric Liquid Crystal

With the continuing prosperity of LiDAR markets, the demand of a fast‐scanning, high‐precision and inexpensive LiDAR system is growing rapidly. In this paper, we disclose a fast‐switchable ferroelectric liquid crystal Dammann grating and polarization grating‐based holographic projection and detection system for 3D imaging devices and LiDAR with an extended field of view. The field of view of the proposed system can achieve ~80 ° with <0.5cm precision at a significantly lower cost. This improvement increases LiDAR versatility and performance in various scenarios.