Spatially-selective disks, submillimeter imaging devices, methods of submillimeter imaging, profiling scanners, spectrometry devices, and methods of spectrometry
First Claim
1. A method of spectrometry, the method comprising:
- providing a spectrometry device including;
a disk having one or more holes;
a motor configured to rotate the disk;
one or more beam-shaping optics selected from the group consisting of;
prisms and cylinders, the one or more beam-shaping optics arranged to map one or more spectral components of radiation of interest onto a plurality of locations on the disk; and
a receiver positioned to capture the one or more spectral components passing through the one or more holes as the disk is rotated;
actuating the motor to rotate the disk;
capturing a plurality of spectral components passing through the plurality of holes as the disk rotates; and
computing a spectrum by solving a system of equations wherein a magnitude of one of the plurality of spectral components is equal to a sum of a product of the spectral component in each of a plurality of pixels and the fraction of pixel area backed by the plurality of holes.
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Accused Products
Abstract
One aspect of the invention provides a spatially-selective disk including a plurality of holes arranged such that a matrix having a plurality of rows, each row having elements corresponding to a fraction of a pixel in a viewing window projected onto the disk that is backed by a hole at a distinct rotational position of the disk, has linearly independent rows. Another aspect of the invention provides a spectrometry device including: a disk having one or more holes; a motor configured to rotate the disk; one or more beam-shaping optics arranged to map one or more spectral components of radiation of interest onto a plurality of locations on the disk; and a receiver positioned to capture the one or more spectral components passing through the one or more holes as the disk is rotated.
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Citations
20 Claims
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1. A method of spectrometry, the method comprising:
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providing a spectrometry device including; a disk having one or more holes; a motor configured to rotate the disk; one or more beam-shaping optics selected from the group consisting of;
prisms and cylinders, the one or more beam-shaping optics arranged to map one or more spectral components of radiation of interest onto a plurality of locations on the disk; anda receiver positioned to capture the one or more spectral components passing through the one or more holes as the disk is rotated; actuating the motor to rotate the disk; capturing a plurality of spectral components passing through the plurality of holes as the disk rotates; and computing a spectrum by solving a system of equations wherein a magnitude of one of the plurality of spectral components is equal to a sum of a product of the spectral component in each of a plurality of pixels and the fraction of pixel area backed by the plurality of holes.
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2. A spectrometry device comprising:
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a disk having a plurality of holes and a contiguous aperture substantially opposite the plurality of holes; a motor configured to rotate the disk; a mask defining an imaging window and a spectrometry window; one or more beam-shaping optics arranged to map one or more spectral components of radiation of interest received through the imaging window and the holes and aperture of the disk onto a plurality of locations on the disk; and a receiver positioned to capture the one or more spectral components passing through the plurality of holes and the aperture of the disk and the spectrometry window as the disk is rotated. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification