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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.:

US 12298522 B1

PDFFull Text
Date of Patent:
May. 13, 2025

Filed:

Dec. 21, 2018

Display device and method for tracking a virtual visibility region

Applicant:

Seereal Technolgies S.a., Munsbach, LU;

Inventors:

Norbert Leister, Dresden Sachsen, DE;

Bo Kroll, London, GB;

Assignee:

SEEREAL TECHNOLOGIES S.A., Munsbach, LU;

Attorney:

Saul Ewing LLP

Primary Examiner:

Nitin Patel

Assistant Examiner:

Cory A Almeida

Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02F 1/13 (2006.01); G02F 1/1334 (2006.01); G02F 1/1337 (2006.01); G02F 1/1347 (2006.01); G02F 1/19 (2019.01); G02F 1/29 (2006.01); G03H 1/02 (2006.01); G03H 1/04 (2006.01); G03H 1/08 (2006.01); G03H 1/22 (2006.01); G06F 3/01 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0179 (2013.01); G02B 27/0172 (2013.01); G03H 1/02 (2013.01); G03H 1/08 (2013.01); G03H 1/2205 (2013.01); G03H 1/2294 (2013.01); G06F 3/013 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0187 (2013.01); G02F 1/1323 (2013.01); G02F 1/13342 (2013.01); G02F 1/133711 (2013.01); G02F 1/1347 (2013.01); G02F 1/19 (2013.01); G02F 1/292 (2013.01); G02F 2203/24 (2013.01); G03H 2001/0212 (2013.01); G03H 2001/0216 (2013.01); G03H 2001/0423 (2013.01); G03H 2001/0825 (2013.01); G03H 2001/2207 (2013.01); G03H 2001/221 (2013.01); G03H 2001/2223 (2013.01); G03H 2001/2236 (2013.01); G03H 2222/22 (2013.01); G03H 2223/12 (2013.01); G03H 2223/14 (2013.01); G03H 2223/22 (2013.01); G03H 2223/23 (2013.01); G03H 2223/55 (2013.01); G03H 2226/05 (2013.01); G03H 2227/03 (2013.01);
Abstract

The invention relates to a display device for representing two-dimensional and/or three-dimensional scenes. The display device comprises at least one illumination device to emit sufficiently coherent light, at least one spatial light modulation device, at least one optical system and a tracking device. A hologram is encoded into the at least one spatial light modulation device by means of a single-parallax encoding. The at least one optical system is provided to generate at least one virtual visibility region at the position of an eye of an observer. The encoding direction of the hologram on the spatial light modulation device is modifiable by means of the tracking device.

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