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公开(公告)号：US11204508B2
公开(公告)日：2021-12-21
申请号：US15410463
申请日：2017-01-19
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede
Abstract: An optical device is disclosed. The optical device has an optical path and includes a first polarizing filter positioned in the optical path that is configured to receive electromagnetic radiation (EMR) from a scene and to transmit a first subset of EMR comprising EMR in a first waveband that has a first polarization orientation and EMR in a second waveband. A second polarizing filter is positioned in the optical path downstream of the first polarizing filter that is configured to receive the first subset of EMR and to transmit a second subset of EMR comprising EMR in the second waveband that has a second polarization orientation and the EMR in the first waveband that has the first polarization orientation.
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公开(公告)号：US20180203246A1
公开(公告)日：2018-07-19
申请号：US15410463
申请日：2017-01-19
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede
CPC classification number: G02B27/288
Abstract: An optical device is disclosed. The optical device has an optical path and includes a first polarizing filter positioned in the optical path that is configured to receive electromagnetic radiation (EMR) from a scene and to transmit a first subset of EMR comprising EMR in a first waveband that has a first polarization orientation and EMR in a second waveband. A second polarizing filter is positioned in the optical path downstream of the first polarizing filter that is configured to receive the first subset of EMR and to transmit a second subset of EMR comprising EMR in the second waveband that has a second polarization orientation and the EMR in the first waveband that has the first polarization orientation.
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公开(公告)号：US09521336B1
公开(公告)日：2016-12-13
申请号：US13891692
申请日：2013-05-10
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede , Scott L. Roberson , Suresh Subramanian
CPC classification number: H04N5/335 , G01J1/58 , G01J3/0208 , G01J3/28 , G01J3/2803 , H04N5/332 , H04N9/045
Abstract: A multi-spectral photon converting imaging apparatus and method are disclosed. A plurality of photons in a first received band and a plurality of photons in a second received band are received by a first nanoparticle photon conversion material. The first nanoparticle photon conversion material converts the plurality of photons in the first received band to a plurality of photons in a first converted band, and the plurality of photons in the second received band to a plurality of photons in a second converted band. An image sensor receives the plurality of photons in the first converted band and the plurality of photons in the second converted band, and generates a digitized image of the scene based on the plurality of photons in the first converted band and the plurality of photons in the second converted band.
Abstract translation: 公开了一种多光谱光子转换成像装置和方法。 第一接收频带中的多个光子和第二接收频带中的多个光子被第一纳米颗粒光子转换材料接收。 第一纳米颗粒光子转换材料将第一接收频带中的多个光子转换成第一转换频带中的多个光子，并将第二接收频带中的多个光子转换成第二转换频带中的多个光子。 图像传感器接收第一转换频带中的多个光子和第二转换频带中的多个光子，并且基于第一转换频带中的多个光子和第一转换频带中的多个光子来生成场景的数字化图像 第二转换带。
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公开(公告)号：US09478692B1
公开(公告)日：2016-10-25
申请号：US14095513
申请日：2013-12-03
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede , Del E. Vicker
IPC: H01L27/146 , H01L31/12 , G01N23/087 , B82Y20/00 , G01T1/20 , C09K11/00 , H01L31/0232 , A61B6/00 , G01T1/36 , G02B6/42
CPC classification number: H01L31/125 , A61B6/4233 , A61B6/4241 , A61B6/482 , B82Y20/00 , C01P2004/64 , C09K11/00 , G01N23/087 , G01T1/2002 , G01T1/2006 , G01T1/2018 , G01T1/362 , G02B6/4298 , G02B13/16 , G02B2207/101 , G02F2/00 , H01L27/14601 , H01L27/14663 , H01L27/14676 , H01L31/02322 , H04N5/32 , H04N5/332
Abstract: A photonic conversion layer receives incoming photons in a plurality of X-ray bands, the incoming photons passing through an item on a path from an X-ray source to the photonic conversion layer. The incoming photons are converted in each X-ray band of the plurality of X-ray bands to outgoing photons in corresponding different converted bands in the visible-to-near infrared (VNIR) spectrum. The outgoing photons are emitted in the corresponding different converted bands in the VNIR spectrum. A sensor detects the outgoing photons in the corresponding different converted bands in the VNIR spectrum and generates output data representative of the outgoing photons. Image data is generated based on the output data.
Abstract translation: 光子转换层接收多个X射线波段中的入射光子，入射光子通过从X射线源到光子转换层的路径上的物品。 入射光子在多个X射线波段的每个X射线波段中被转换成可见到近红外（VNIR）光谱中相应不同转换波段的出射光子。 出射光子在VNIR光谱中的相应不同转换频带中发射。 传感器检测VNIR光谱中相应不同转换频带中的出射光子，并产生代表出射光子的输出数据。 基于输出数据生成图像数据。
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公开(公告)号：US11042739B2
公开(公告)日：2021-06-22
申请号：US16489732
申请日：2018-03-05
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede
Abstract: The embodiments implement fraud-resistant biometric security based on polarization-based iris identification. The embodiments include identifying an iris based on unique patterns of polarized electromagnetic radiation (EMR) received from the iris.
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Patent Agency Ranking
公开(公告)号：US10670779B1
公开(公告)日：2020-06-02
申请号：US15699679
申请日：2017-09-08
Applicant: Lockheed Martin Corporation
Inventor： Johann M. Veras , David R. Twede , Clara R. Baleine , Gary C. Vanstone
Abstract: An optical element is disclosed. The optical element includes a plurality of layers. The plurality of layers includes a notch filter array that has a plurality of notch filter elements. Each notch filter element is configured to filter out energy within at least one wavelength band of interest. The plurality of layers further includes a polarization-responsive grid array having a plurality of polarization elements and includes a microlens array having a plurality of microlens elements. Each microlens element is configured to image a portion of a scene onto an image plane.
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公开(公告)号：US20190384974A1
公开(公告)日：2019-12-19
申请号：US16489732
申请日：2018-03-05
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede
Abstract: The embodiments implement fraud-resistant biometric security based on polarization-based iris identification. The embodiments include identifying an iris based on unique patterns of polarized electromagnetic radiation (EMR) received from the iris.
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公开(公告)号：US10371519B1
公开(公告)日：2019-08-06
申请号：US15606761
申请日：2017-05-26
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede , James N. O'Sullivan
Abstract: An optical assembly that includes at least one polarizing filter assembly and at least one sensor. The polarizing filter assembly is configured to receive electromagnetic radiation (EMR) emitted by a sun and transmit at least three different portions of EMR towards the at least one sensor, each portion filtered based on a different polarization orientation. A processor device is configured to receive sensor data generated by the at least one sensor in response to receipt of the at least three different portions of EMR, and determine an elevation angle of the sun with respect to a horizon from a geographic location of the optical assembly.
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公开(公告)号：US10789467B1
公开(公告)日：2020-09-29
申请号：US16107435
申请日：2018-08-21
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede
Abstract: The embodiments implement polarization-based disturbed earth identification. At least one sensor apparatus comprising a plurality of detector elements receives polarized electromagnetic radiation (EMR) in a first waveband from a scene of an area of a surface of the earth and polarized EMR in a second waveband from the scene, the polarized EMR in the first waveband having a first polarization orientation and the polarized EMR in the second waveband having a second polarization orientation. The sensor apparatus outputs sensor information that quantifies EMR received by each detector element of the plurality of detector elements. A computing device processes the sensor information to generate an image or a classification image of the scene based on an amount of polarized EMR received by each detector element, and presents the image on a display device.
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公开(公告)号：US10371625B1
公开(公告)日：2019-08-06
申请号：US15190633
申请日：2016-06-23
Applicant: Lockheed Martin Corporation
Inventor： David R. Twede , Suresh Subramanian , Richard William Guthrie
Abstract: Identification of reflective surfaces as being associated with optical threats is disclosed. A first laser signal is emitted from a first laser system at a first wavelength and a first emission circular polarization orientation. A first signal reflection of the first laser signal from a reflective surface at the first wavelength having a first return circular polarization orientation that is different from the first emission circular polarization orientation is detected. A first return quantification of the first signal reflection, based at least in part on an amount of circular polarization of the first signal reflection, is determined. It is determined that the reflective surface is associated with a threat optic based at least in part on the first return quantification.
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