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:
Aug. 15, 2023
Filed:
Jun. 23, 2020
Magic Leap, Inc., Plantation, FL (US);
Ling Li, Cedar Park, TX (US);
Ali Karbasi, Coral Gables, FL (US);
Christophe Peroz, San Francisco, CA (US);
Chieh Chang, Cedar Park, TX (US);
Sharad D. Bhagat, Austin, TX (US);
Brian George Hill, Duxbury, MA (US);
Melanie Maputol West, San Francisco, CA (US);
Ryan Jason Ong, Austin, TX (US);
Xiaopei Deng, Cedar Park, TX (US);
Shuqiang Yang, Austin, TX (US);
Frank Y. Xu, Austin, TX (US);
Magic Leap, Inc., Plantation, FL (US);
Abstract
A head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting or casting. The spacers are disposed on one or more major surfaces of the waveguides and define a distance between immediately adjacent waveguides. Adjacent waveguides may be bonded using adhesives on the spacers. The spacers may fit within indentations of overlying waveguides. In some cases, the spacers may form one or more walls of material substantially around a perimeter of an associated waveguide. Vent holes may be provided in the walls to allow gas flow into and out from an interior volume defined by the spacers. Debris trapping structures may be provided between two walls of spacers to trap and prevent debris from entering into the interior volume.