Patent · US Active

Accommodation bifocal optical assembly and optical system including same

US11567326B1 · kind B1 · utility

3Cited by

1References

19Claims

0Family size

Assignee

Meta Platforms Technologies, LLC · US

Inventors

Afsoon Jamali · Redmond, US
Yang Zhao · Kirkland, US
Brian Wheelwright · Tucson, US
Douglas Robert Lanman · Bellevue, US
Marina Zannoli · Seattle, US
Ian Erkelens · Kirkland, US
Yusufu Njoni Bamaxam Sulai · Bothell, US
Lu Lu · Kirkland, US
Jacques Gollier · Sammamish, US

Key dates

Filing date	Oct 30, 2020
Grant date	Jan 31, 2023
Priority date	—
Expiry date	Jan 16, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/20
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A device includes a light source configured to emit an image light. The device also includes an optical assembly configured to direct the image light to an eye-box of the device. The optical assembly includes a first optical element portion configured to focus a first portion of the image light propagating through the first optical element portion. The optical assembly also includes a second optical element portion configured to focus a second portion of the image light propagating through the second optical element portion. The second optical element portion includes a liquid crystal (“LC”) lens having an adjustable optical power.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.