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:
Sep. 22, 2020
Filed:
Aug. 09, 2019
Applicant:
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Inventor:
Jani Kari Tapio Tervo, Espoo, FI;
Assignee:
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/18 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 5/1842 (2013.01); G02B 5/18 (2013.01); G02B 27/0081 (2013.01); G02B 27/0101 (2013.01); G02B 27/0172 (2013.01); G02B 2027/0123 (2013.01);
Abstract
An optical device includes a single waveguide plate. The single waveguide plate includes a first DOE including an in-coupling element having at least two periods and orientations. The optical device further includes a second DOE optically coupled to the first DOE. The second DOE includes a plurality of expansion gratings. At least one of the expansion gratings includes a plurality of wings. The optical device includes a third DOE optically coupled to the second DOE. The third DOE includes an out-coupling grating having at least two periods and orientations.