Method and apparatus for compact dispersive imaging spectrometer
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Abstract
The disclosure generally relates to a method and apparatus for compact dispersive imaging spectrometer. More specifically, one embodiment of the disclosure relates to a portable system for obtaining a spatially accurate wavelength-resolved image of a sample having a first and a second spatial dimension. The portable system can include a photon emission source for sequentially illuminating a plurality of portions of said sample with a plurality of photons to produce photons scattered by the sample. The photon emission source can illuminate the sample along the first spatial dimension for each of plural predetermined positions of the second spatial dimension. The system may also include an optical lens for collecting the scattered photons to produce therefrom filtered photons, a dispersive spectrometer for determining a wavelength of ones of the filtered photons, a photon detector for receiving the filtered photons and obtaining therefrom plural spectra of said sample, and a processor for producing a two dimensional image of said sample from the plural spectra.
73 Citations
90 Claims
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1-41. -41. (canceled)
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42. A portable system for obtaining a spectrum of a sample having a first and a second spatial dimension, comprising:
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a photon emission source for illuminating a portion of said sample with a plurality of photons to thereby produce photons scattered by the sample;
an optical lens for collecting the scattered photons to produce therefrom filtered photons;
a dispersive spectrometer for determining a wavelength of ones of the filtered photons; and
a photon detector for receiving the filtered photons and obtaining therefrom a spectrum of said sample, wherein the photon emission source illuminates said sample along the first spatial dimension at a predetermined position of the second spatial dimension. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A method for obtaining a spectrum of a sample using a hand-held device, the method comprising the steps of:
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providing a sample having a first and a second spatial dimension;
illuminating a portion of said sample with a plurality of photons from a photon emission source to thereby produce photons scattered by the sample;
collecting the scattered photons and producing therefrom filtered photons;
determining a wavelength of ones of the filtered photons; and
receiving the filtered photons in a photon detector and obtaining therefrom a spectrum of said sample, wherein the photon emission source illuminates said sample along the first spatial dimension at a predetermined position of the second spatial dimension. - View Dependent Claims (61, 62, 63, 64, 65, 66)
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67. A portable system for obtaining a spatially accurate wavelength-resolved image of a sample having a first and a second spatial dimension, comprising:
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a photon emission source for illuminating a portion of said sample with a plurality of photons to thereby produce photons emitted by the sample;
an optical lens for collecting the emitted photons and producing therefrom filtered photons;
a dispersive spectrometer for determining a wavelength of ones of the filtered photons; and
a photon detector for receiving the filtered photons and obtaining therefrom a spectrum of said sample, wherein the photon emission source illuminates said sample along the first spatial dimension at a predetermined position of the second spatial dimension. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83)
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84. A method for obtaining a spatially accurate wavelength-resolved image of a sample using a hand-held device, the method comprising the steps of:
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providing a sample having a first and a second spatial dimension;
illuminating a portion of said sample with a plurality of photons from a photon emission source to thereby produce photons scattered by the sample;
collecting the scattered photons and producing therefrom filtered photons;
determining a wavelength of ones of the filtered photons; and
receiving the filtered photons in a photon detector and obtaining therefrom a spectrum of said sample, wherein the photon emission source illuminates said sample along the first spatial dimension at a predetermined position of the second spatial dimension. - View Dependent Claims (85, 86, 87, 88, 89, 90)
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Specification