US 12,133,029 B2
High brightness projection systems and methods
Gerwin Damberg, Vancouver (CA)
Assigned to MTT INNOVATION INCORPORATED, Vancouver (CA)
Filed by MTT INNOVATION INCORPORATED, Vancouver (CA)
Filed on Feb. 16, 2023, as Appl. No. 18/110,787.
Application 18/110,787 is a continuation of application No. 16/605,587, granted, now 11,611,728, previously published as PCT/CA2018/050564, filed on May 11, 2018.
Claims priority of provisional application 62/505,827, filed on May 12, 2017.
Prior Publication US 2023/0199156 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 9/31 (2006.01)
CPC H04N 9/3126 (2013.01) [H04N 9/3147 (2013.01); H04N 9/3161 (2013.01); H04N 9/3185 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image projection system comprising:
a first projector operative to project first modulated light onto a screen, the first projector comprising a first spatial light modulator;
a second projector operative to project second modulated light onto the screen superposed with the first modulated light, the second projector comprising a light steering module;
a controller operative to process image data comprising pixel values defining target illumination levels for a target image to be displayed and to generate control signals for the first spatial light modulator and the light steering module, wherein the processing comprises splitting light output between the first and second projectors in such a manner that the second modulated light includes a portion of the light for each of the pixels of the image and the first modulated light makes up a majority of the light for those pixels of the image for which the target illumination level is less than a first threshold level,
wherein the processing of the image data further includes splitting the target image into a light steering image portion for illumination by the second modulated light and a light non-steering image portion for illumination by the first modulated light, wherein the splitting of the target image is based on a function or look-up table.