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:
Oct. 01, 2019
Filed:
Aug. 28, 2017
Facebook Technologies, Llc, Menlo Park, CA (US);
Kieran Tobias Levin, Redwood City, CA (US);
Ye Yin, Pleasanton, CA (US);
Simon Hallam, San Jose, CA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
An optical evaluation workstation evaluates a virtual image distance of eyecup assemblies of a head mounted display (HMD). The workstation includes an eyecup assembly feed assembly configured to receive an eyecup assembly of an HMD. The eyecup assembly comprising an optics block rigidly fixed to an electronic display panel. The workstation includes a lens assembly positioned at a fixed distance from the eyecup assembly. The workstation includes a movable imaging sensor assembly positioned along the alignment axis and configured to capture one or more images of the one or more test patterns presented by the eyecup assembly when the imaging sensor assembly is at different positions. The optical evaluation workstation includes a control module configured to determine one or more virtual image distances of the eyecup assembly using the plurality of images captured by the imaging sensor assembly.