公开(公告)号：US20250044422A1

公开(公告)日：2025-02-06

申请号：US18362218

申请日：2023-07-31

Applicant: Allegro MicroSystems, LLC

Inventor： Andrew S. Huntington ,  Adam Lee ,  Michael James Munroe ,  Ronald Talaga

IPC: G01S7/4863 ,  G01S7/481 ,  G01S7/486 ,  G01S7/4865

Abstract: Split-detector lidar photoreceivers are described which utilize range-dependent focus to transition from illuminating two detector elements with returns from near targets, within a close-range threshold distance, to illuminating just one detector element for all other returns. In some examples, a split-detector can have or include a “bullseye” (concentric) detector configuration. Because two separate detector elements with separate amplifier chains are used, one channel can be optimized for the strong to and near-target returns, while another channel can be optimized and used for all other returns.