Systems and methods for tiling free space optical transmissions
First Claim
1. A system, comprising:
- a plurality of optical transmitters located at a first location, each of the plurality of optical transmitters being oriented with an angular offset relative to each other;
a light source and beamforming optic of each of the plurality of optical transmitters emitting a beam of light that upon propagating to a second, far field location relative to the first location has an intensity distribution focused within a spatial area representative of a geometric shape;
wherein at the second, far field location, the respective intensity distributions of at least two beams of light abut each other without overlapping in accordance with the relative angular offsets of two of the plurality of optical transmitters from which the at least two beams of light are emitted.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for optical narrowcasting are provided for transmitting various types of content. Optical narrowcasting content indicative of the presence of additional information along with identifying information may be transmitted. The additional information (which may include meaningful amounts of advertising information, media, or any other content) may also be transmitted as optical narrowcasting content. Elements of an optical narrowcasting system may include optical transmitters and optical receivers which can be configured to be operative at distances ranging from, e.g., 400 meters to 1200 meters. At such far-field distances, light beams emitted from the optical transmitters can be combined in a tiled fashion to create energy efficient and directable optical transmissions.
334 Citations
30 Claims
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1. A system, comprising:
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a plurality of optical transmitters located at a first location, each of the plurality of optical transmitters being oriented with an angular offset relative to each other; a light source and beamforming optic of each of the plurality of optical transmitters emitting a beam of light that upon propagating to a second, far field location relative to the first location has an intensity distribution focused within a spatial area representative of a geometric shape; wherein at the second, far field location, the respective intensity distributions of at least two beams of light abut each other without overlapping in accordance with the relative angular offsets of two of the plurality of optical transmitters from which the at least two beams of light are emitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system, comprising:
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a first optical transmitter transmitting a first light beam having a uniform intensity distribution upon propagating to a far field plane; a second optical transmitter transmitting a second light beam having a uniform intensity distribution upon propagating to the same far field plane, wherein at least one of the second optical transmitter is tilted in at least one direction relative to the first optical transmitter and the first optical transmitter is tilted in at least one direction relative to the second optical transmitter; and wherein the first and second light beams combine at or beyond the far field plane such that the respective uniform intensity distributions of the first and second optical transmitters abut each other to form a two-dimensional angular output region. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method, comprising:
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outputting a first optical beam having a first cross section and uniform intensity distribution within an area defined by the first cross section upon propagation to a far field distance from a first transmitter outputting the first optical beam; outputting a second optical beam having a second cross section and uniform intensity distribution within an area defined by the second cross section upon propagation to a far field distance from a second transmitter outputting the second optical beam; positioning the first and second transmitters relative to each other with an angular offset such that at the far field distance, the respective uniform intensity distributions of each of the first and second optical beams combine to form a tiled optical beam, wherein the respective uniform intensity distributions of each of the first and second optical beams abut each other creating at least one common border between the first and second optical beams at the far field distance. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method, comprising:
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outputting a first optical beam having a uniform intensity distribution within an angular region defining a first cross sectional area at a far field distance from a first transmitter outputting the first optical beam; outputting a second optical beam having a uniform intensity distribution within an angular region defining a second cross sectional area at a far field distance from a second transmitter outputting the second optical beam; positioning at least one of the first and second transmitters such that the at least one of the first and second transmitters is offset by an angular amount with respect to the other of the first and second transmitters, wherein a cross sectional area of the first and second optical beams at the far field distance comprises a combination of the first and second cross sectional areas, the first and second cross sectional areas being offset by the angular amount such that at least a portion of the first and second cross sectional areas abut each other without overlap. - View Dependent Claims (27, 28, 29, 30)
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Specification