System for outputting a spectrum of light of a scene having optical detectors to receive light of different spectral transmittance from respective filters
| DWPI Title: System for compressive sensing snapshot spectrometry, has filter array that has different spectral transmittance, computing system receives data indicative of output, and output data indicative of light spectrum based upon detector output |
| Abstract: Technologies pertaining to a compressive sensing snapshot spectrometer are described herein. Light is focused through an array of filters onto an array of optical detectors by way of an optical objective. Each detector in the array receives light from a single respective filter in the filters. Each filter in the filters has a spectral transmittance function that overlaps a spectral transmittance function of at least one other filter. A compressive sensing algorithm is executed over outputs of the detectors based upon the known spectral transmittance functions of the filters. Based upon the execution of the compressive sensing algorithm, intensity values of the light are identified for a number of spectral bins that is greater than a number of detectors in the array. |
| Use: System for outputting spectrum of light of scene. |
| Advantage: The improved system for compressive sensing snapshot spectrometry is provided. |
| Novelty: The system (100) has optical objective (108). The array (110, 112) of filters receives light from the objective. Each filter in the array of filters has a same field of view. Each filter in the array of filters has a different spectral transmittance. The spectral transmittance of each filter overlaps a spectral transmittance of other filter in the array of filters. Each detector in the array of detectors receives light from a different respective filter in the array of filters. A computing system receives data indicative of outputs of the detectors. The computing system is configured to output data indicative of a spectrum of the light based upon the outputs of the detectors. |
| Filed: 5/9/2017 |
| Application Number: US15590783A |
| Tech ID: SD 13821.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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