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:
Nov. 15, 2022
Filed:
May. 03, 2019
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Afsoon Jamali, Menlo Park, CA (US);
Brian Wheelwright, Menlo Park, CA (US);
Yang Zhao, Menlo Park, CA (US);
Yusufu Njoni Bamaxam Sulai, Menlo Park, CA (US);
Douglas Robert Lanman, Menlo Park, CA (US);
META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
An optical lens assembly and an optical system is provided. The optical lens assembly includes a first optical element including a partial reflector and a quarter-wave plate and a second optical element including a reflective polarizer. The first optical element and the second optical element form a cavity. The pancake lens assembly further includes a varifocal lens having an adjustable optical power, and the varifocal lens is disposed inside or outside the cavity.