公开(公告)号：US11627291B2

公开(公告)日：2023-04-11

申请号：US16450271

申请日：2019-06-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Daniel Guenther Greif ,  James Laudolff

IPC: H04N9/31 ,  G02B26/10 ,  G02B27/30 ,  G03B21/14

Abstract: A scanning projector display includes a light engine comprising N emitters coupled to a collimator for providing a fan of N light beams of variable optical power levels, where N>1. The N emitters are spaced apart from each other such that pixels of the image simultaneously energized by neighboring ones of the N emitters are non-adjacent. A scanner receives and angularly scans the fan of N light beams about first and second non-parallel axes to provide an image in angular domain. A controller coupled to the scanner and the light engine causes the scanner to simultaneously scan the fan of N light beams about the first and second axes, and cause the light engine to vary the optical power levels of the N emitters with time delays such that adjacent pixels of the image are energized by different ones of the N emitters.