Invention Grant
- Patent Title: Systems and methods for a dual axis resonant scanning mirror
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Application No.: US16241849Application Date: 2019-01-07
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Publication No.: US11885958B2Publication Date: 2024-01-30
- Inventor: David Hall , Anand Gopalan , Matthew Rekow , Garrett Rogren
- Applicant: VELODYNE LIDAR USA, INC
- Applicant Address: PS San Jose
- Assignee: Velodyne Lidar USA, Inc.
- Current Assignee: Velodyne Lidar USA, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: G02B26/08
- IPC: G02B26/08 ; G02B26/10 ; G01S7/481 ; G01S17/06 ; G02B5/08 ; G02B5/20 ; F21V8/00

Abstract:
Described herein are systems and methods that implement a dual axis resonant scanning mirror to support a sensor system such as a LIDAR system. The scanning mirror may comprise: 1) a small dual axis mirror, in which each axis is moving by similar electromagnetic mechanisms can generate crosstalk between each of these electromagnetic mechanisms causing perturbations in the motion; 2) a primary axis that may need to be driven independently of the motion of a secondary axis and vice versa; 3) an optical position sensor; 4) a scanning mirror assembly that may be mounted to a scanner base via the secondary axis. The scanning mirror assembly may comprise resonant spring, resonant spring assembly, the rocking chair (with electromagnetic drive coils), the scanner base with a set of two secondary axis propulsion magnets, the mirror with a spacer and primary axis propulsion magnets, and the optical sense board.
Public/Granted literature
- US20200218062A1 SYSTEMS AND METHODS FOR A DUAL AXIS RESONANT SCANNING MIRROR Public/Granted day:2020-07-09
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