The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2025
Filed:
Nov. 24, 2021
Zoox, Inc., Foster City, CA (US);
Haiming Wang, Fremont, CA (US);
Zoox, Inc., Foster City, CA (US);
Abstract
A light detection and ranging (lidar) system for providing coherent lidar in environments and situations where disturbances are experienced without compromising quality of the coherent lidar data. The lidar system includes a light source that directs a linearly polarized beam to a polarization beam splitter where s-polarized and p-polarized components are separated with one traveling on to reflect off a target. A second component serves as a reference and reflects off the beam splitter along a separate axis. By passing through a quarter-wave plate upon exiting the beam splitter and upon returning through the quarter-wave plate, the polarization of each component is changed such that the beams combine along the second axis and proceed to an analyzer. The beam splitter and quarter-wave plates are monolithic to provide system stability during environmental disturbances.