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.

Date of Patent:
Oct. 21, 2025

Filed:

Jul. 07, 2022
Applicant:

Envisics Ltd, Milton Keynes, GB;

Inventors:

Timothy Smeeton, Milton Keynes, GB;

Jamieson Christmas, Milton Keynes, GB;

Daniel Burnham, Milton Keynes, GB;

Ruisheng Lin, Milton Keynes, GB;

Gavin Fowler, Milton Keynes, GB;

Assignee:

Envisics Ltd., Milton Keynes, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/26 (2006.01);
U.S. Cl.
CPC ...
G03H 1/26 (2013.01); G03H 2001/262 (2013.01); G03H 2222/13 (2013.01); G03H 2223/16 (2013.01); G03H 2226/02 (2013.01);
Abstract

Systems and method disclosed herein include, among other features, receiving an image for display within a display area of a display system, determining a first image component of the image, calculating a hologram of the image, displaying the hologram on a display device and spatially modulating light in accordance with the displayed hologram, and propagating the spatially modulated light through a pupil expander arranged to provide a plurality of different light propagation paths for the spatially modulated light from the display device to the viewing area, wherein each light propagation path corresponds to a respective continuous region of the image owing to the angular distribution of light from the hologram.


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