Array-based camera lens system
First Claim
1. A lens system comprising:
- a first lens array assembly comprising a first plurality of cells, each cell of the first plurality of cells configured to exhibit a pair of first Fourier transform lenses; and
a second lens array assembly comprising a second plurality of cells, each cell of the second plurality of cells configured to exhibit a pair of second Fourier transform lenses;
wherein;
the first Fourier transform lenses have a first pitch;
the second Fourier transform lenses have a second pitch differing from the first pitch; and
the first and second lens array assemblies are positioned relative to one another along an optical axis of the lens system such that a representation of a Fourier transform of light from an object is developed at a plane between the first and second lens array assemblies and an image of the object is provided at an image conjugate distance from the second lens array assembly.
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Accused Products
Abstract
A lens system includes a first lens array assembly including a first plurality of cells, each cell of the first plurality of cells configured to exhibit a pair of first Fourier transform lenses, and a second lens array assembly including a second plurality of cells, each cell of the second plurality of cells configured to exhibit a pair of second Fourier transform lenses. The first Fourier transform lenses have a first pitch. The second Fourier transform lenses have a second pitch differing from the first pitch. The first and second lens array assemblies are positioned relative to one another along an optical axis of the lens system such that a Fourier transform of light from an object is developed at a plane between the first and second lens array assemblies and an image of the object is provided at an image conjugate distance from the second lens array assembly.
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Citations
20 Claims
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1. A lens system comprising:
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a first lens array assembly comprising a first plurality of cells, each cell of the first plurality of cells configured to exhibit a pair of first Fourier transform lenses; and a second lens array assembly comprising a second plurality of cells, each cell of the second plurality of cells configured to exhibit a pair of second Fourier transform lenses; wherein; the first Fourier transform lenses have a first pitch; the second Fourier transform lenses have a second pitch differing from the first pitch; and the first and second lens array assemblies are positioned relative to one another along an optical axis of the lens system such that a representation of a Fourier transform of light from an object is developed at a plane between the first and second lens array assemblies and an image of the object is provided at an image conjugate distance from the second lens array assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A lens system comprising:
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a first pair of in-tandem microlens arrays, each microlens array of the first pair comprising a respective set of lenslets, each lenslet having a first common focal length; a second pair of in-tandem microlens arrays, each microlens array of the second pair comprising a respective set of lenslets, each lenslet having a second common focal length, the first and second pairs of in-tandem microlens arrays separated from one another along an optical axis of the lens system by a gap; and a positioner coupled to one or both of the first pair and second pair, the positioner configured to adjust a size of the gap; wherein; the in-tandem microlens arrays of the first pair are separated from one another along the optical axis by the first common focal length such that the microlens arrays of the first pair are configured to provide a representation of a Fourier transform of light emanating from an object, the representation provided along a plane disposed in the gap; the in-tandem microlens arrays of the second pair are separated from one another along the optical axis of the lens system by the second common focal length such that the microlens arrays of the second pair are configured to provide an image of the object via Fourier transformation of the representation; and the in-tandem microlens arrays of the first pair, the second pair, or both the first and second pairs, have different pitches. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A camera comprising:
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a first pair of in-tandem microlens arrays, each microlens array of the first pair comprising a respective set of lenslets, each lenslet having a first common focal length; a second pair of in-tandem microlens arrays, each microlens array of the second pair comprising a respective set of lenslets, each lenslet having a second common focal length, the first and second pairs of in-tandem microlens arrays separated from one another by a gap; an image sensor disposed at an image conjugate distance from the second pair of in-tandem microlens arrays; and a positioner coupled to, and configured to adjust a position of, one or more of the first pair, the second pair, and the image sensor; wherein; the in-tandem microlens arrays of the first pair are separated from one another by the first common focal length such that the microlens arrays of the first pair are configured to provide a representation of a Fourier transform of light emanating from an object, the representation provided along a plane disposed in the gap; the in-tandem microlens arrays of the second pair are separated from one another by the second common focal length such that the microlens arrays of the second pair are configured to provide an image of the object via Fourier transformation of the representation; the first and second pairs of in-tandem microlens arrays are positioned relative to one another such that the image of the object is provided at an image conjugate distance from the second pair of in-tandem microlens arrays; and at least two of the microlens arrays of the first pair and the second pair have different pitches. - View Dependent Claims (18, 19, 20)
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Specification