	US 12,073,509 B2
	Spatially-resolved dynamic dimming for augmented reality device
Vaibhav Mathur, Weston, FL (US); David Manly, Fort Lauderdale, FL (US); Jahja I. Trisnadi, Cupertino, CA (US); Clinton Carlisle, Parkland, FL (US); Lionel Ernest Edwin, Hollywood, 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 Apr. 28, 2023, as Appl. No. 18/140,783.
Application 18/140,783 is a continuation of application No. 17/895,313, filed on Aug. 25, 2022, granted, now 11,676,333.
Application 17/895,313 is a continuation of application No. 17/330,146, filed on May 25, 2021, granted, now 11,461,961, issued on Oct. 4, 2022.
Application 17/330,146 is a continuation of application No. 16/557,706, filed on Aug. 30, 2019, granted, now 11,170,565, issued on Nov. 9, 2021.
Claims priority of provisional application 62/858,252, filed on Jun. 6, 2019.
Claims priority of provisional application 62/725,993, filed on Aug. 31, 2018.
Prior Publication US 2023/0267677 A1, Aug. 24, 2023
Int. Cl. G06T 15/50 (2011.01); G02B 27/01 (2006.01); G06F 3/01 (2006.01); G06T 15/80 (2011.01)

CPC G06T 15/506 (2013.01) [G02B 27/0172 (2013.01); G06F 3/013 (2013.01); G06T 15/80 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0178 (2013.01); G06T 2215/16 (2013.01)]

20 Claims

1. A method of operating a dimmer of an optical system, the method comprising:

receiving, at the optical system, light associated with a world object;

generating, at a projector of the optical system, virtual image light to be projected onto an eyepiece of the optical system, the virtual image light representing one or more virtual objects to be displayed;

projecting the virtual image light onto the eyepiece;

for each pixel of a plurality of pixels of the dimmer:

determining a brightness of the virtual image light at the pixel; and

calculating a dimming value for the pixel to be used to adjust the dimmer at the pixel, the dimming value being calculated based on the brightness of the virtual image light at the pixel, the dimming value being one of a plurality of spatially-resolved dimming values; and

adjusting the dimmer in accordance with the plurality of spatially-resolved dimming values to reduce an intensity of the light associated with the world object.