US 12,001,013 B2
Pixel intensity modulation using modifying gain values
Richard Stephen Johnston, Sammamish, WA (US); and Brian T. Schowengerdt, Seattle, WA (US)
Assigned to Magic Leap, Inc., Plantation, FL (US)
Filed by Magic Leap, Inc., Plantation, FL (US)
Filed on Jan. 9, 2023, as Appl. No. 18/151,763.
Application 18/151,763 is a continuation of application No. 17/256,961, granted, now 11,579,441, issued on Feb. 14, 2023, previously published as PCT/US2019/040324, filed on Jul. 2, 2019.
Claims priority of provisional application 62/693,228, filed on Jul. 2, 2018.
Prior Publication US 2023/0161152 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 26/10 (2006.01); G06V 40/18 (2022.01); G09G 3/00 (2006.01); G02B 27/01 (2006.01)
CPC G02B 26/103 (2013.01) [G06V 40/18 (2022.01); G09G 3/002 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0187 (2013.01); G09G 2320/0285 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A visual perception device comprising:
a data store;
relational gain data stored in the data store and representing a plurality of reference locations and a plurality of gain values, each gain value corresponding to a respective reference location;
a video data receiver connectable to a video data channel to receive video data including a plurality of pixels;
a correlator connected to the relational gain data and the video data receiver and operable to correlate each pixel with a reference location in the relational gain data to find a gain value corresponding to the respective pixel;
a beam modulator connected to the video data receiver and the correlator and operable to modify an intensity value of the respective pixel based on the gain value for the respective pixel to determine a modulated gain value for the respective pixel; and
a laser projector connected to the beam modulator and operable to generate a respective beam of light and transmit the beams of light in a pattern wherein the beams of light are spatially separated in two dimensions with the respective beams of light in the two dimensions being modulated according to the respective modulated gain values of each respective one of the pixels.