一种可寻址VCSEL阵列芯片、驱动电路及驱动方法

By using time-division control of a tightly arranged hexagonal VCSEL array chip and a driving electrode group, the illumination blind spot of the lidar is eliminated, the point cloud resolution and detection reliability are improved, and it is suitable for high-precision perception scenarios such as autonomous driving.

CN121123755BActive Publication Date: 2026-07-17VEKSER MICROELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
VEKSER MICROELECTRONICS CO LTD
Filing Date
2025-11-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the time-division multiplexing scanning mode of lidar, there are illumination blind spots, resulting in insufficient point cloud density and poor detection integrity, which are difficult to eliminate effectively with existing technologies.

Method used

The design employs a hexagonal, tightly packed VCSEL array chip. By setting a shared area between adjacent light-emitting areas and utilizing time-division control of the driving electrode group, seamless connection of light spots in adjacent areas is achieved, eliminating lighting blind spots.

Benefits of technology

It achieves seamless scanning with LiDAR, improves point cloud resolution and detection reliability, maintains system simplicity and low cost, and is suitable for high-precision perception scenarios such as autonomous driving.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种用于激光雷达、3D传感的可寻址VCSEL阵列芯片、驱动电路及驱动方法,将衬底上的所有所述发光单元分为两个发光区,两个相邻发光区之间设有共享区,当芯片处于第一扫描时段T1时,通过所述多路选择器,同时激活第一驱动电极组和共享电极组,点亮第一发光区和共享区;当芯片处于第二扫描时段T2时,通过所述多路选择器,同时激活第二驱动电极组和共享电极组,点亮第二发光区和共享区;本发明通过共享电极组的创新设计,使交界处的发光单元可被相邻区域分时复用,确保了在扫描过程中照明光斑的无缝衔接,彻底消除了盲区;该方案可直接集成于现有纯固态激光雷达的驱动架构中,无需改变其核心的分区扫描工作模式,实现成本低。
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