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.

Date of Patent:
Sep. 24, 2024

Filed:

Nov. 10, 2022
Applicant:

Magic Leap, Inc., Plantation, FL (US);

Inventors:

Wendong Xing, Plantation, FL (US);

Neal Paul Ricks, Plantation, FL (US);

Thomas Mercier, Weston, FL (US);

William Hudson Welch, Fort Lauderdale, FL (US);

Assignee:

Magic Leap, Inc., Plantation, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 13/00 (2006.01); B29C 35/02 (2006.01); B29C 35/08 (2006.01); B29D 11/00 (2006.01); G02B 25/00 (2006.01);
U.S. Cl.
CPC ...
G02C 13/001 (2013.01); B29C 35/0288 (2013.01); G02B 25/001 (2013.01); G02C 13/005 (2013.01); B29C 2035/0827 (2013.01); B29D 11/00413 (2013.01);
Abstract

Techniques are described for applying an edge sealant to the edge of a multi-layer optical device. In particular, embodiments provide an apparatus that performs a precision measurement of the perimeter of an eyepiece, applying the edge sealant (e.g., polymer) based on the precision-measured perimeter, and subsequently cures the edge sealant, using ultraviolet (UV) light that is directed at the edge sealant. The curing process may be performed within a short time following the application of the edge sealant, to ensure that any wicking of the edge sealant between the layers of the eyepiece is controlled to be no greater than a particular depth tolerance. In some examples, the edge sealant is applied to the optical device prevent, or at least reduce, the leakage of light from the optical device, and also to ensure and maintain the structure of the multi-layer optical device.


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