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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 10902673 B1

PDFFull Text
Date of Patent:
Jan. 26, 2021

Filed:

May. 13, 2020

Three-dimensional displays using electromagnetic field computations

Applicant:

Pacific Light & Hologram, Inc., South Pasadena, CA (US);

Inventors:

Jonathan Seamus Blackley, South Pasadena, CA (US);

Tina Qin, Van Nuys, CA (US);

Asher Zelig Sefami, Los Angeles, CA (US);

Kamran Qaderi, Pasadena, CA (US);

Mark Anthony Sararu, Los Angeles, CA (US);

Joshua D. Wiensch, Pasadena, CA (US);

Rajay Kumar, Huntington Beach, CA (US);

Sylvain Marcel Colin, Santa Barbara, CA (US);

Assignee:

Pacific Light & Hologram, Inc., South Pasadena, CA (US);

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Francis Geroleo

Int. Cl.
CPC ...
G06T 17/10 (2006.01); G06T 15/30 (2011.01); G02B 30/52 (2020.01); G02B 30/56 (2020.01); G03H 1/02 (2006.01); G06T 15/00 (2011.01); G06T 15/20 (2011.01); G09G 3/00 (2006.01); H04N 13/15 (2018.01); H04N 13/275 (2018.01); G01R 29/08 (2006.01); H04N 13/296 (2018.01); G02B 30/40 (2020.01); G02B 5/32 (2006.01); G06T 19/00 (2011.01); H04N 13/349 (2018.01); G02B 27/01 (2006.01); H04N 13/32 (2018.01); H04N 13/324 (2018.01);
U.S. Cl.
CPC ...
G06T 17/10 (2013.01); G01R 29/0807 (2013.01); G02B 5/32 (2013.01); G02B 27/0103 (2013.01); G02B 30/40 (2020.01); G02B 30/52 (2020.01); G02B 30/56 (2020.01); G03H 1/0248 (2013.01); G06T 15/005 (2013.01); G06T 15/205 (2013.01); G06T 15/30 (2013.01); G06T 19/006 (2013.01); G09G 3/003 (2013.01); H04N 13/15 (2018.05); H04N 13/275 (2018.05); H04N 13/296 (2018.05); H04N 13/32 (2018.05); H04N 13/324 (2018.05); H04N 13/349 (2018.05); G02B 2027/0109 (2013.01); G03H 2001/0212 (2013.01); G03H 2001/0224 (2013.01); G06T 2210/21 (2013.01);
Abstract

Methods, apparatus, devices, and systems for three-dimensional (3D) displaying objects are provided. In one aspect, a method includes obtaining data including respective primitive data for primitives corresponding to an object, determining an electromagnetic (EM) field contribution to each element of a display for each of the primitives by calculating an EM field propagation from the primitive to the element, generating a sum of the EM field contributions from the primitives for each of the elements, transmitting to each of the elements a respective control signal for modulating at least one property of the element based on the sum of the EM field contributions, and transmitting a timing control signal to an illuminator to activate the illuminator to illuminate light on the display, such that the light is caused by the modulated elements of the display to form a volumetric light field corresponding to the object.

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