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:
Apr. 01, 2025
Filed:
Oct. 03, 2024
Pacific Light & Hologram, Inc., San Gabriel, CA (US);
Jonathan Seamus Blackley, South Pasadena, CA (US);
Richard Bahr, Atherton, CA (US);
Watson Brent Boyett, Los Angeles, CA (US);
Sylvain Marcel Colin, Ventura, CA (US);
Robin James Green, Duvall, WA (US);
Isaac Serrano Guasch, Barcelona, ES;
Stephen John Hart, San Juan Capistrano, CA (US);
Robert Alan Hess, Mesa, AZ (US);
Margaret H. Hsu, Pasadena, CA (US);
Christoph Von Jutrzenka, Santa Barbara, CA (US);
DeaGyu Kim, Pasadena, CA (US);
Mark Anthony Loya, Temple City, CA (US);
Kelly Swan MacNeill, Seattle, WA (US);
Benjamin Francis Neil, South Pasadena, CA (US);
Kamran Qaderi, San Gabriel, CA (US);
Tina Qin, Rosemead, CA (US);
Jesus Manuel Caridad Ramirez, Altadena, CA (US);
Jayakrishna Sashidharan, San Gabriel, CA (US);
Asher Zelig Sefami, Altadena, CA (US);
Jeff Smith, Las Vegas, NV (US);
Robert David Srinivasiah, Mountain View, CA (US);
Sameer Sudhir Walavalkar, Glendale, CA (US);
Joshua D. Wiensch, Altadena, CA (US);
Daniel Dereck Williamson, Brighton, IE;
Pacific Light & Hologram, Inc., San Gabriel, CA (US);
Abstract
Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a device includes: an optical guiding device configured to guide light to propagate along a first direction within the optical guiding device, an in-coupling diffractive structure configured to diffract the light to propagate in the optical guiding device, and one or more out-coupling diffractive structures arranged downstream the in-coupling diffractive structure along the first direction and configured to diffract at least part of the light out of the optical guiding device along a second, different direction. The in-coupling diffractive structure is configured to cause a first optical dispersion for the light, and at least one out-coupling diffractive structure is configured to cause a second optical dispersion for the light. The first and second optical dispersions are compensated, such that light diffracted out of the optical guiding device has no or little optical dispersion.