Radiation conditioning system
First Claim
1. A holographic imaging system comprising:
- a radiation source for generating radiation;
a data base comprising a set of elements, each element indicative of a trajectory of a light ray exiting a point in a recorded scene;
a spatial light modulator receptive of the radiation from the radiation source and the elements of the data base mapped to the spatial light modulator, thereby projecting from the spatial light modulator an optical signal in the nature of a two dimensional bitmap of the recorded scene; and
a beam steering device receptive of the projected optical signal from the spatial light modulator for directing the optical signal in a specified direction.
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Abstract
A holographic imaging system and method includes a radiation source for generating radiation. A data base has a set of elements, each element is indicative of a trajectory of a light ray exiting a point in a recorded scene. A spatial light modulator is receptive of the radiation from the radiation source and the elements of the data base mapped to the spatial light modulator, thereby projecting from the spatial light modulator an optical signal in the nature of a two dimensional bitmap of the recorded scene. A diffractive optical element includes a set of basis fringes receptive of the projected optical signal from the spatial light modulator for diffracting the optical signal in a specified direction. A multiplexer is receptive of the elements of the data base for multiplexing the elements of the data base to the spatial light modulator. A timing device synchronizes multiplexing the elements of the data base to the spatial light modulator and diffracting the optical signal in a specified direction.
87 Citations
51 Claims
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1. A holographic imaging system comprising:
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a radiation source for generating radiation;
a data base comprising a set of elements, each element indicative of a trajectory of a light ray exiting a point in a recorded scene;
a spatial light modulator receptive of the radiation from the radiation source and the elements of the data base mapped to the spatial light modulator, thereby projecting from the spatial light modulator an optical signal in the nature of a two dimensional bitmap of the recorded scene; and
a beam steering device receptive of the projected optical signal from the spatial light modulator for directing the optical signal in a specified direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A holographic imaging system comprising:
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a radiation source for generating radiation;
a data base comprising a set of elements, each element indicative of a trajectory of a light ray exiting a point in a recorded scene;
a spatial light modulator receptive of the radiation from the radiation source and the elements of the data base mapped to the spatial light modulator, thereby projecting from the spatial light modulator an optical signal in the nature of a two dimensional bitmap of the recorded scene;
a diffractive optical element including a set of basis fringes receptive of the projected optical signal from the spatial light modulator for diffracting the optical signal in a specified direction;
a multiplexer receptive of the elements of the data base for multiplexing the elements of the data base to the spatial light modulator; and
a timing device for synchronizing multiplexing the elements of the data base to the spatial light modulator and diffracting the optical signal in a specified direction.
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17. A holographic imaging method comprising:
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establishing a data base comprising a set elements, each element indicative of a trajectory and an origin of a light ray exiting a point in a recorded scene;
mapping each element of the data base onto a spatial light modulator;
directing radiation onto the spatial light modulator;
projecting an optical signal from the spatial light modulator in the nature of a two dimensional bitmap of the recorded scene;
diffracting the optical signal projected from the spatial light modulator with a set of basis fringes. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33)
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27. A radiation conditioning system comprising:
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a radiation source for generating radiation;
a spatial light modulator receptive of the radiation from the radiation source and a control signal for addressing the spatial light modulator, thereby projecting a radiation field from the spatial light modulator; and
a radiation conditioning device receptive of the radiation field from the spatial light modulator for conditioning the radiation field;
wherein the radiation conditioning device includes a plurality of radiation conditioning regions. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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41. A radiation conditioning device comprising:
a diffractive optical element including a diffraction grating comprising a set of basis fringes. - View Dependent Claims (42)
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43. A method of conditioning a radiation field, the method comprising:
conditioning the radiation field by scanning the radiation field with a radiation conditioning device comprising a set of basis fringes. - View Dependent Claims (44, 45, 46, 47, 48)
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49. A method of conditioning a radiation field, the method comprising:
conditioning the radiation field by scanning the radiation field with a radiation conditioning device having time varying properties.
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50. A radiation conditioning system comprising:
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a radiation projector for projecting a radiation field; and
a radiation conditioning device receptive of the radiation field from the radiation projector for conditioning the radiation field;
wherein the radiation conditioning device includes a plurality of radiation conditioning regions. - View Dependent Claims (51)
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Specification