US 12,379,600 B2
Eyepieces for augmented reality display system
Kevin Messer, Fort Lauderdale, FL (US); and Michael Anthony Klug, Austin, TX (US)
Assigned to Magic Leap, Inc., Plantation, FL (US)
Filed by Magic Leap, Inc., Plantation, FL (US)
Filed on May 14, 2024, as Appl. No. 18/664,223.
Application 18/664,223 is a continuation of application No. 18/296,803, filed on Apr. 6, 2023, granted, now 12,181,678.
Application 18/296,803 is a continuation of application No. 16/905,618, filed on Jun. 18, 2020, granted, now 11,650,423, issued on May 16, 2023.
Claims priority of provisional application 63/024,343, filed on May 13, 2020.
Claims priority of provisional application 62/863,871, filed on Jun. 20, 2019.
Prior Publication US 2024/0302660 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 5/18 (2006.01); G06F 3/01 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 5/1866 (2013.01); G02B 6/0016 (2013.01); G02B 6/0076 (2013.01); G06F 3/011 (2013.01); G06F 3/012 (2013.01); G06F 3/013 (2013.01); G06F 3/017 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An augmented reality display system comprising:
a first eyepiece waveguide comprising a first optically transmissive substrate;
a first input coupling grating (ICG) region formed on or in the first eyepiece waveguide, the first ICG region being configured to receive a set of input beams of light, the set of input beams being associated with a set of k-vectors in k-space corresponding to an input image, and to translate the set of k-vectors to a location in k-space such that a first subset of the k-vectors lies inside a first k-space annulus associated with the first eyepiece waveguide, the first k-space annulus corresponding to a region in k-space associated with guided propagation in the first eyepiece waveguide;
a second eyepiece waveguide comprising a second optically transmissive substrate; and
a second input coupling grating (ICG) region formed on or in the second eyepiece waveguide, the second ICG region being configured to receive at least a portion of the set of input beams of light, and to translate the set of k-vectors to a location in k-space such that a second subset of the k-vectors lies inside a second k-space annulus associated with the second eyepiece waveguide, the second k-space annulus corresponding to a region in k-space associated with guided propagation in the second eyepiece waveguide;
wherein the first and second subsets of the k-vectors are at least partially different but together include a complete set of k-vectors corresponding to the input image.