公开(公告)号：US11852753B1

公开(公告)日：2023-12-26

申请号：US16593531

申请日：2019-10-04

Applicant: Waymo LLC

Inventor： William Grossman ,  Troy Scott Storz ,  Matthew Carroll

IPC: G01S7/497 ,  G01S7/481

CPC classification number: G01S7/497 ,  G01S7/4813 ,  G01S2007/4977

Abstract: A sensor (e.g., an optical sensor) is disposed in an enclosure that separates it from an external environment. The enclosure includes an aperture comprising a transparent material. A laminate comprising a plurality of transparent films is coupled to the aperture such that the sensor has a field of view of the external environment through the transparent material of the aperture and the plurality of transparent films. The laminate includes an exposed transparent film that is exposed to the external environment and that is removable to expose an underlying film in the laminate when dirt, debris, or other obscuring material has collected on it. A laminate module that includes the laminate, a laminate sensor, and a peeling mechanism may be removably mounted on the aperture. The laminate sensor can sense the number of transparent films remaining in the laminate. The peeling mechanism can peel away individual transparent films in the laminate.