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US 2022/0187631 A1Published application
Segmented polarization selective device
AssigneeFacebook Technologies, LLC
InventorsChangwon JANG, Afsoon JAMALI
Life of this patent
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Abstract
A device includes a segmented polarization switch including a plurality of polarization switch segments. The device also includes a polarization selective optical element (“PSOE”) optically coupled to the segmented polarization switch and including a plurality of polarization selective segments. The device further includes a controller configured to control the polarization switch segments to operate in a switching state or a non-switching state to control optical states of the polarization selective segments.
Claims20
A device, comprising:
- a segmented polarization switch including a plurality of polarization switch segments;
- a polarization selective optical element (“PSOE”) optically coupled to the segmented polarization switch and including a plurality of polarization selective segments;
- and
- a controller configured to control the polarization switch segments to operate in a switching state or a non-switching state to control optical states of the polarization selective segments.
1 more element
A system, comprising:
- a light source configured to output a light;
- a polarization selective device optically coupled to the light source and configured to modulate the light and output a modulated light to illuminate an object, the polarization selective device including:
- a segmented polarization switch including a plurality of polarization switch segments;
- a polarization selective optical element (“PSOE”) optically coupled to the segmented polarization switch and including a plurality of polarization selective segments;
- and
- a controller configured to control the polarization switch segments to operate in a switching state or a non-switching state to control optical states of the polarization selective segments;
- and
- an imaging device configured to receive the modulated light reflected by the object and generate an image of the object based on the received modulated light.
5 more elements
Dependencies are inferred from the claim text.