Flat optics for light coupling

A light beam steering system comprising:

• a 2-dimensional light emitter array including one or a plurality of light emitters configured to emit one or a plurality of light beams;
• a first metasurface configured to receive the light beam from each light emitter of the light emitter array and generate one or multiple corresponding output light beams or light distribution pattern, the output light beams or pattern having at least one beam property that is dependent on a 2-dimensional position of the corresponding light emitter, the at least one beam property including direction, collimation, divergence, or phase or intensity distribution,
• wherein the first metasurface is configured to generate output light beams over a field of view greater than 60 degrees with respect to a normal direction of the first metasurface;
• and
• first control circuitry coupled to the light emitter array to modulate or selectively turn on or off individual light emitters in the light emitter array.

A light illumination device comprising:

• a 2-dimensional light emitter array including one or a plurality of light emitters configured to emit one or a plurality of light beams;
• a metasurface configured to receive the light beam from the light emitter or each light emitter of the light emitter array and generate one or multiple corresponding output light beams or light distribution pattern, the output light beams or pattern having at least one beam property that is dependent on a 2-dimensional position of the corresponding light emitter, the at least one beam property including direction, collimation, divergence, or phase and/or intensity distribution;
• and
• control circuitry coupled to the light emitter or light emitter array to modulate or selectively turn on or off individual light emitters in the light emitter array.