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. 01, 2026
Filed:
Jun. 15, 2023
Applicant:
Dualitas Ltd, Milton Keynes, GB;
Inventor:
Jamieson Christmas, Milton Keynes, GB;
Assignee:
Dualitas Ltd, Milton Keynes, GB;
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/08 (2006.01); G02B 27/00 (2006.01); G02B 27/10 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0081 (2013.01); G02B 27/1026 (2013.01); G02B 2027/0109 (2013.01);
Abstract
A method of head-up display for a vehicle. A first step comprises displaying a hologram of an image on a display device and spatially modulating light in accordance with the displayed hologram to form a holographic wavefront. A second step comprises replicating the holographic wavefront in a first direction using a first pupil expander to form a 1D array of replicas of the holographic wavefront. A third step comprises using a windscreen of the vehicle as a second pupil expander to form a 2D array of replicas of the holographic wavefront from the 1D array of replicas.