US 12,436,398 B1
Camera architectures for combined eye-tracking and outward-tracking
Bowei Zhang, Los Angeles, CA (US); Runyu Liu, Los Angeles, CA (US); and Chien Hung Lu, Los Angeles, CA (US)
Assigned to Bytedance Technology Ltd., Grand Cayman (KY)
Filed by Bytedance Technology Ltd., Grand Cayman (KY)
Filed on Apr. 28, 2025, as Appl. No. 19/192,134.
Int. Cl. G02B 27/01 (2006.01); G02B 5/20 (2006.01)
CPC G02B 27/0179 (2013.01) [G02B 5/201 (2013.01); G02B 27/0172 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A near-eye device comprising:
a frame comprising an arm;
an eye illuminator disposed on the arm of the frame, wherein the eye illuminator is configured to project light to an eye of a user;
an imaging system disposed on the arm of the frame, wherein the imaging system comprises:
an image sensor; and
a color filter array comprising:
a first set of filters for allowing the projected light from the eye illuminator to pass; and
a second set of filters for allowing visible light to pass; and
a lens comprising an optical element for:
directing the projected light from the eye illuminator to the eye of the user; and
directing light reflected off the eye of the user to the imaging system.