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:
May. 12, 2026
Filed:
Feb. 02, 2023
Applicant:
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Inventors:
Assignee:
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/22 (2006.01); G02B 27/01 (2006.01); G02F 1/1335 (2006.01); G02F 1/1343 (2006.01); G06F 1/16 (2006.01); G02B 27/00 (2006.01); G03H 1/02 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02F 1/1335 (2013.01); G02F 1/134363 (2013.01); G03H 1/2286 (2013.01); G03H 1/2294 (2013.01); G06F 1/163 (2013.01); G02B 27/0093 (2013.01); G02B 2027/0174 (2013.01); G02B 2207/117 (2013.01); G03H 2001/0224 (2013.01); G03H 2001/2207 (2013.01); G03H 2223/16 (2013.01); G03H 2223/23 (2013.01); G03H 2223/24 (2013.01); G03H 2225/34 (2013.01);
Abstract
A holographic display includes an illuminator, a spatial light modulator (SLM) coupled to the illuminator, and an ocular lens coupled to the SLM. The illuminator provides a wide-area illuminating light beam to illuminate the SLM with a spatially homogeneous beam of light. The illuminator may include a slab waveguide with an evanescent out-coupler, or a beam expander based on a diffraction grating with an oblique angle of incidence and a near-normal angle of diffraction of the illuminating light. A low-pass spatial filter may be provided to filter out higher diffraction orders of the illuminating light diffracted on the SLM.