公开(公告)号：US20240085343A1

公开(公告)日：2024-03-14

申请号：US17930441

申请日：2022-09-08

Applicant: Waymo LLC

Inventor： Ralph H. Shepard ,  Andy Wong ,  Chase Salsbury ,  Regan Klein

IPC: G01N21/95 ,  G01S17/89

CPC classification number: G01N21/95 ,  G01S17/89

Abstract: Example embodiments relate to temporally modulated light emission and defect detection in light detection and ranging (lidar) devices and cameras. An example embodiment includes a method. The method includes detecting, by a first detector via an optical component, a background signal corresponding to a surrounding environment. The method also includes illuminating, by a first light source, a first portion of the optical component with a first light signal. Additionally, the method includes detecting, by the first detector when one or more defects are present in a body of the first portion of the optical component or on a surface of the first portion of the optical component, the first light signal. Further, the method includes determining, by a computing device, when one or more defects are present in the body of the first portion of the optical component or on the surface of the first portion of the optical component.