Methods and Apparata for Direction-Selective Filtering and Applications Thereof
First Claim
1. An optical apparatus, comprising:
- an array of Fourier-transforming optically transmissive elements to each map optical radiation between each of a plurality of angles of incidence and corresponding coordinate locations proximate each respective optically transmissive element; and
a support material to maintain the optically transmissive elements in the array.
4 Assignments
0 Petitions
Accused Products
Abstract
A multi-layer optical device may include one, two, or three layers. A first layer may include an array of Fourier-transforming optically transmissive elements to map optical radiation between each of a plurality of angles of incidence and corresponding coordinate locations proximate each respective optically transmissive element. A second layer may provide a modulation matrix of optically modulating sub-elements optically coupled to the array of transmissive elements, where each optically modulating sub-element corresponds to one of the coordinate locations of the first layer mapping. A third layer includes an array of inverse Fourier-transforming optically transmissive elements to inverse-map optical radiation from the optically modulating sub-elements of the modulation matrix for propagation at angles corresponding to the angles of incidence from which the optical radiation was received.
3 Citations
396 Claims
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1. An optical apparatus, comprising:
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an array of Fourier-transforming optically transmissive elements to each map optical radiation between each of a plurality of angles of incidence and corresponding coordinate locations proximate each respective optically transmissive element; and a support material to maintain the optically transmissive elements in the array. - View Dependent Claims (40, 60, 79, 85, 86, 87, 88, 103, 109, 117, 139, 140, 143, 146, 151, 155, 170, 176, 190)
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2-39. -39. (canceled)
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41-59. -59. (canceled)
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61-78. -78. (canceled)
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80-84. -84. (canceled)
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89-102. -102. (canceled)
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104-108. -108. (canceled)
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110-116. -116. (canceled)
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118-138. -138. (canceled)
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141. (canceled)
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147-150. -150. (canceled)
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152-154. -154. (canceled)
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156-169. -169. (canceled)
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171-175. -175.
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177-189. -189. (canceled)
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191-200. -200. (canceled)
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201. A multi-layer refractive element with direction-selective filtering, comprising:
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a first optically transmissive layer to map optical radiation received at each of a plurality of angles of incidence to one of a plurality of locations on an output surface of the first layer; a modulation matrix of optically modulating sub-elements optically coupled to the output surface of the first layer; a second optically transmissive layer to inverse-map optical radiation transmitted through the modulation matrix of optically modulating sub-elements from each of the plurality of unique locations for propagation at angles corresponding to the received angles of incidence associated with each unique location; and at least one control input in communication with the modulation matrix of optically modulating sub-elements to selectively modify transmission of optical radiation from at least one of the unique locations on the output surface of the first optically transmissive layer to the second optically transmissive layer. - View Dependent Claims (202, 203, 205, 206, 207, 286)
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204. (canceled)
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208-285. -285. (canceled)
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287-293. -293. (canceled)
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294. A multi-layer refractive apparatus with direction-selectively filtering, comprising:
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an array of multi-layer direction-selective refractive elements, wherein each of the multi-layer direction-selective refractive elements comprises; a first optically transmissive layer to map optical radiation received at each of a plurality of angles of incidence to one of a plurality of locations on an output surface of the first layer; a modulation matrix of optically modulating sub-elements optically coupled to the output surface of the first layer; a second optically transmissive layer to inverse-map optical radiation transmitted through the modulation matrix of optically modulating sub-elements from each of the plurality of unique locations for propagation at angles corresponding to the received angles of incidence associated with each unique location; and at least one control input in communication with the modulation matrix of optically modulating sub-elements to selectively modify transmission of optical radiation from at least one of the unique locations on the output surface of the first layer to the second optically transmissive layer; and a controller in communication with each of the at least one control inputs of each of the multi-layer direction-selective refractive elements. 295-338. (Canceled) - View Dependent Claims (339, 343, 358, 360, 361, 373, 376, 381)
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340-342. -342. (canceled)
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344-357. -357. (canceled)
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362-372. -372. (canceled)
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374. (canceled)
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375. (canceled)
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377. The multi-layer refractive apparatus of 376, wherein each disk-shaped multi-layer refractive element comprises one of:
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a hexagonal disk with flat opposing surfaces, a circular disk with flat opposing surfaces, and a rectangular disk with flat opposing surfaces.
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378-380. -380. (canceled)
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382-394. -394. (canceled)
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395. A method for direction selective filtering via a multi-layer refractive element comprising:
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receiving optical radiation on an input surface of a first optically transmissive layer at each of a plurality of angles of incidence; mapping the optical radiation received at each of the plurality of angles of incidence to one of a plurality of locations on an output surface of the first layer; selectively modifying the transmission of optical radiation from the output surface of the first layer to a second optically transmissive layer at one or more of the plurality of unique locations via a modulation matrix of optically modulating sub-elements positioned between the first and second optically transmissive layers; and inverse-mapping optical radiation, via the second optically transmissive layer, that is transmitted through the modulation matrix of optically modulating sub-elements from each of the plurality of unique locations for propagation at angles corresponding to the received angles of incidence associated with each unique location.
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396. (canceled)
Specification