Imaging systems for optical computing devices
First Claim
1. An optical computing device, comprising:
- an electromagnetic radiation source that emits electromagnetic radiation into an optical train to optically interact with a sample and at least one integrated computational element arranged within the optical train, the sample generating optically interacted radiation upon optically interacting with the electromagnetic radiation;
a sampling window arranged adjacent the sample and allowing transmission of the electromagnetic radiation therethrough in order to generate the optically interacted radiation, the sampling window having one or more surfaces that generate one or more stray signals;
a first focal lens arranged to receive the optically interacted radiation and the one or more stray signals and generate a primary focal point from the optically interacted radiation; and
a structural element defining a spatial aperture aligned with the primary focal point such that the optically interacted radiation is able to pass therethrough while transmission of the one or more stray signals is substantially blocked by the structural element.
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Accused Products
Abstract
Optical computing devices are disclosed. One optical computing device includes an electromagnetic radiation source that emits electromagnetic radiation into an optical train to optically interact with a sample and at least one integrated computational element, the sample being configured to generate optically interacted radiation. A sampling window is arranged adjacent the sample and configured to allow transmission of the electromagnetic radiation therethrough and has one or more surfaces that generate one or more stray signals. A first focal lens is arranged to receive the optically interacted radiation and the one or more stray signals and generate a primary focal point from the optically interacted radiation. A structural element defines a spatial aperture aligned with the primary focal point such that the optically interacted radiation is able to pass therethrough while transmission of the one or more stray signals is substantially blocked by the structural element.
137 Citations
26 Claims
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1. An optical computing device, comprising:
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an electromagnetic radiation source that emits electromagnetic radiation into an optical train to optically interact with a sample and at least one integrated computational element arranged within the optical train, the sample generating optically interacted radiation upon optically interacting with the electromagnetic radiation; a sampling window arranged adjacent the sample and allowing transmission of the electromagnetic radiation therethrough in order to generate the optically interacted radiation, the sampling window having one or more surfaces that generate one or more stray signals; a first focal lens arranged to receive the optically interacted radiation and the one or more stray signals and generate a primary focal point from the optically interacted radiation; and a structural element defining a spatial aperture aligned with the primary focal point such that the optically interacted radiation is able to pass therethrough while transmission of the one or more stray signals is substantially blocked by the structural element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An imaging system arranged in an optical train of an optical computing device, comprising:
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a first focal lens arranged in the optical train and configured to receive and focus optically interacted radiation emitted from a sample and one or more stray signals emitted from a sampling window arranged adjacent the sample, the first focal lens providing a primary focal point derived from the optically interacted radiation; a structural element defining a spatial aperture aligned with the primary focal point such that the optically interacted radiation is able to pass therethrough while transmission of the one or more stray signals is blocked by the structural element; and a second focal lens arranged to receive the optically interacted radiation from the focal point and configured to convey the optically interacted radiation to at least one integrated computational element arranged in the optical train and configured to generate a modified electromagnetic radiation. - View Dependent Claims (19, 20, 21)
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22. An optical computing device, comprising:
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an electromagnetic radiation source that emits electromagnetic radiation that optically interacts with a sample arranged within an optical train; an integrated computational element arranged in the optical train adjacent the sample and allowing transmission of the electromagnetic radiation therethrough to optically interact with the sample and thereby generate modified electromagnetic radiation, the integrated computational element having one or more surfaces that generate one or more stray signals; a focal lens arranged in the optical train to receive the modified electromagnetic radiation and the one or more stray signals and generate a primary focal point from the modified electromagnetic radiation; and a first detector arranged at or near the primary focal point to receive the modified electromagnetic radiation from the integrated computational element, the first detector generating an output signal corresponding to a characteristic of the sample. - View Dependent Claims (23, 24, 25, 26)
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Specification