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. 26, 2026
Filed:
May. 09, 2022
Applicant:
Bae Systems Plc, London, GB;
Inventor:
Ian Marshall, Rochester, GB;
Assignee:
BAE SYSTEMS PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 1/12 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0016 (2013.01); G02B 1/12 (2013.01); G02B 6/0018 (2013.01); G02B 6/0055 (2013.01); G02B 27/0172 (2013.01);
Abstract
A waveguide for use in a head-up or head-worn display, the waveguide comprising: a prism having an entrance pupil for receiving an image; a plurality of gratings configured to direct illumination through the prism towards first and second semi-reflecting surfaces; wherein the semi-reflecting surfaces each reflect a different amount of illumination towards an exit point to produce an output image.
Marshall, Ian. (2026). Waveguide (U.S. Patent No. 12638630). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12638630
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile