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:
Feb. 04, 2020
Filed:
Dec. 09, 2016
Microsoft Technology Licensing, Llc, Redmond, WA (US);
R. Andrew Wall, Kirkland, WA (US);
Dmitry Reshidko, Tucson, AZ (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A display device system includes a display engine and optical waveguide. The display engine includes an image former, that produces light corresponding to an image, and one or more lens groups that collimate the light corresponding to the image and outputs the light from the display engine. Each lens group includes one or more lenses that share a mechanical axis. The light corresponding to the image produced by the image former has an optical axis ray coincident with a principal ray of the light that originates at a center of the image produced by the image former. At least one lens group has its mechanical axis tilted relative to the optical axis ray of the light corresponding to the image produced by the image former, to prevent a ghost image from being formed by light corresponding to the image that is reflected-back from the waveguide toward the display engine.