Method for steering light for a projector and light steering projector
AssigneesBarco N.V., Barco Visual Solutions, Inc.
InventorsDries DOORNAERT, Eric NODWELL
Life of this patent
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Abstract
Efficient light steering systems and methods. An example method for steering light for a projector system includes illuminating an active surface of a light steering module. The active surface of the light steering module may include a plurality of individually controllable pixels. The method may also include determining a target steering phase pattern for each of a plurality of distinct regions of the active surface of the light steering module. The method may also include controlling the light steering module according to the corresponding target steering phase pattern for each region to increase light steering efficiency.
Claims21
1-30. (canceled)
A method for steering light for a projector comprising:
- illuminating an active surface of a light steering module, the active surface of the light steering module comprising a plurality of individually controllable pixels;
- dividing the active surface into a plurality of regions, each region comprising a corresponding subset of the plurality of individually controllable pixels;
- determining phase patterns for the plurality of regions of the active surface of the light steering module,
- wherein each of the phase patterns is determined according to efficiency for steering of light to each of positions of output light field in a target plane.
A light steering projector comprising:
- a light steering module having an active surface, the active surface of the light steering module comprising a plurality of individually controllable pixels;
- at least one spatial light modulator configured to spatially modulate light from the light steering module;
- a projector system configured to project the spatially modulated light;
- and
- a controller, the controller configured to:
- divide the active surface into a plurality of distinct regions, each region comprising a corresponding subset of the plurality of individually controllable pixels;
- and
- determining phase patterns for the plurality of regions of the active surface of the light steering module;
- wherein each of the phase patterns is determined according to efficiency for steering of light to each of positions of output light field in a target plane.
Dependencies are inferred from the claim text.