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:
Aug. 20, 2024
Filed:
Jan. 13, 2023
Applicant:
Google Llc, Mountain View, CA (US);
Inventors:
Thomas Hoekman, Redwood City, CA (US);
Joseph Daniel Lowney, Tucson, AZ (US);
Alexander Y. Zhu, Santa Clara, CA (US);
Assignee:
GOOGLE LLC, Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/44 (2006.01); G02B 27/01 (2006.01); G02B 27/28 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 27/288 (2013.01); G02B 27/44 (2013.01); G02B 5/203 (2013.01); G02B 2027/0178 (2013.01);
Abstract
Techniques are described in which a view control layer is optically coupled to a waveguide having one or more diffraction structures. The view control layer selectively prevents light rays from interfacing with at least one diffraction structure of the waveguide based on a respective angle of incidence at which the light rays encounter the view control layer. In various embodiments, the view control layer may include a light control film, a polarization stack, and/or a dielectric stack angular filter.