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:
Jul. 25, 2023
Filed:
Oct. 18, 2018
Aeva, Inc., Mountain View, CA (US);
Mina Rezk, Haymarket, VA (US);
Neal N. Oza, Palo Alto, CA (US);
Keith Gagne, Santa Clara, CA (US);
Omer P. Kocaoglu, Fremont, CA (US);
Aeva, Inc., Mountain View, CA (US);
Abstract
A light detection and ranging (LIDAR) apparatus is provided that includes a laser source configured to emit a laser beam in a first direction. The apparatus also includes lensing optics configured to pass a first portion of the laser beam in the first direction toward a target, return a second portion of the laser beam into a return path as a local oscillator signal, and return a target signal into the return path. The apparatus also includes a quarter-wave plate configured to polarize the laser beam headed in the first direction and polarize the target signal returned through the lensing optics. The apparatus also includes a polarization beam splitter configured to pass non-polarized light through the beam splitter in the first direction and reflect polarized light in a second direction different than the first direction, wherein the polarization beam splitter is further configured to enable interference between the local oscillator signal and the target signal to generate a mixed signal. The apparatus also includes an optical detector configured to receive the mixed signal.