公开(公告)号：US20180231644A1

公开(公告)日：2018-08-16

申请号：US15951491

申请日：2018-04-12

Applicant: Waymo LLC

Inventor： Blaise Gassend ,  Pierre-Yves Droz ,  Benjamin T. Ingram

IPC: G01S7/481 ,  G02B26/12

CPC classification number: G01S7/4817 ,  G01S7/4814 ,  G01S7/4816 ,  G01S17/42 ,  G01S17/89 ,  G02B26/122 ,  G02B26/125

Abstract: The present disclosure relates to optical systems, specifically light detection and ranging (LIDAR) systems. An example optical system includes a laser light source operable to emit laser light along a first axis and a mirror element with a plurality of reflective surfaces. The mirror element is configured to rotate about a second axis. The plurality of reflective surfaces is disposed about the second axis. The mirror element and the laser light source are coupled to a base structure, which is configured to rotate about a third axis. While the rotational angle of the mirror element is within an angular range, the emitted laser light interacts with both a first reflective surface and a second reflective surface of the plurality of reflective surfaces and is reflected into the environment by the first and second reflective surfaces.