Spectral imager and spectral imaging method

    公开(公告)号:US11249289B2

    公开(公告)日:2022-02-15

    申请号:US16752615

    申请日:2020-01-24

    Abstract: A spectral imager includes a filter array, a pixel array, and a lenslet array therebetween. The filter array includes a plurality of filter regions. The lenslet array includes a plurality of lenslets each configured to form a respective image of the filter array on a respective one of a plurality of regions of the pixel array. The spectral imager may also include a fore-optic lens, the filter array being located between the lenslet array and the fore-optic lens. The spectral imager may also include a fore-optic lens, the filter array being located between the lenslet array and the fore-optic lens. Each of the plurality of filter regions is configured to selectively transmit radiation based on wavelength and/or polarization.

    Optical Systems And Methods Employing A Polarimetric Optical Filter
    2.
    发明申请
    Optical Systems And Methods Employing A Polarimetric Optical Filter 有权
    使用偏光光学滤波器的光学系统和方法

    公开(公告)号:US20140009757A1

    公开(公告)日:2014-01-09

    申请号:US14025224

    申请日:2013-09-12

    Abstract: A birefringent filter includes an EM directing element in optical alignment with a first surface of the birefringent plate. A polarimetric imager includes a birefringent filter including a birefringent plate formed of a birefringent material and an EM directing element in optical alignment with a first surface of the birefringent plate. The imager further includes a detector in optical alignment with a second surface of the birefringent plate. A projection system includes an EM directing element and a birefringent filter. The filter includes (1) a birefringent plate formed of a birefringent material and having a first surface in optical alignment with the emissions source, and (2) an EM directing element in optical alignment with a second surface of the birefringent plate.

    Abstract translation: 双折射滤光器包括与双折射板的第一表面光学对准的EM引导元件。 偏振成像器包括双折射滤光器,其包括由双折射材料形成的双折射板和与双折射板的第一表面光学对准的EM引导元件。 成像器还包括与双折射板的第二表面光学对准的检测器。 投影系统包括EM定向元件和双折射滤光器。 滤光器包括(1)由双折射材料形成并具有与放射源光学对准的第一表面的双折射板,和(2)与双折射板的第二表面光学对准的EM引导元件。

    Limited F-cone light source
    3.
    发明授权
    Limited F-cone light source 有权
    有限的F锥光源

    公开(公告)号:US08274725B2

    公开(公告)日:2012-09-25

    申请号:US12880818

    申请日:2010-09-13

    Applicant: Andrew Bodkin

    Inventor: Andrew Bodkin

    Abstract: A shutter includes micro-optics having first and second concentrator arrays. A transducer laterally displaces one of the first and second concentrator arrays between transmissive and shuttered modes. In the transmissive mode, the arrays of concentrators are optically aligned to permit electromagnetic energy passing through the first array of concentrators to pass through the second array of concentrators. In the shuttered mode, the electromagnetic radiation is blocked from passing through the second array of concentrators. The concentrators may be compound parabolic concentrators, or lenslets positioned on opposing plates with pinholes printed therethrough. The shutter may increase f-number of radiation passing therethrough, and may be used in a limited f-cone radiation source with shuttering abilities, for example reducing f-cone of radiation output from the radiation source.

    Abstract translation: 快门包括具有第一和第二聚光器阵列的微光学器件。 换能器在透射和快门模式之间横向移位第一和第二聚光器阵列中的一个。 在透射模式中,聚光器阵列被光学对准以允许通过第一集中器阵列的电磁能量穿过第二阵列的聚光器。 在快门模式中,电磁辐射被阻止通过第二阵列的聚光器。 集中器可以是复合抛物面聚光器,或者位于相对的板上的小透镜,其中针孔印刷在其中。 快门可以增加通过其中的f数量的辐射,并且可以用于具有快门能力的有限的f-锥体辐射源,例如减小从辐射源输出的辐射的f锥。

    Electrical power source
    4.
    发明授权
    Electrical power source 失效
    电源

    公开(公告)号:US07157802B2

    公开(公告)日:2007-01-02

    申请号:US10966734

    申请日:2004-10-15

    Inventor: W. Andrew Bodkin

    CPC classification number: H02K7/1807

    Abstract: An electrical power source is described. The electrical power source derives input power from a compressed gas which is fed into a transducer, generating electrical power. The compressed gas may be delivered to the unit by several means including manual pumps, thermal, chemical, or ammunition based sources, or connection to pressurized canisters. Optional power converting and feedback circuits and pneumatic valves serve to convert the raw output power into useful AC and DC output voltages, and to match the rate of power delivery to the applied electrical load.

    Abstract translation: 描述电源。 电源从被馈送到换能器中的压缩气体导出输入功率,产生电力。 压缩气体可以通过几种方式输送到设备,包括手动泵,基于热,化学或基于弹药的源,或连接到加压罐。 可选择的电力转换和反馈电路和气动阀用于将原始输出功率转换为有用的交流和直流输出电压,并将功率输出速率与施加的电气负载相匹配。

    Multiband spatial heterodyne spectrometer and associated methods
    5.
    发明授权
    Multiband spatial heterodyne spectrometer and associated methods 有权
    多频段空间外差谱仪及相关方法

    公开(公告)号:US08154732B2

    公开(公告)日:2012-04-10

    申请号:US12111108

    申请日:2008-04-28

    Abstract: A multiband spatial heterodyne spectrometer for determining spectra in first and second wavelength bands has a beam splitter configured to split incident light and to direct the incident light upon a first and a second diffraction grating. The gratings are configured for Littrow reflection of incident light of the first wavelength band at a first order and Littrow reflection of incident light of the second wavelength band at a second order. Light reflected by the first and the second diffraction grating forms diffraction patterns that are imaged by an electronic camera. A dispersive device such as a prism or diffraction grating separates the imaged interference patterns onto separate rows of pixel sensors corresponding to the wavelength bands. A processing device receives information from the detector and computes spectra therefrom. In embodiments, the spectrometer is configured to compute hyperspectral images of a target.

    Abstract translation: 用于确定第一和第二波长带中的光谱的多频带空间外差光谱仪具有分束器,其配置成分离入射光并将入射光引导到第一和第二衍射光栅上。 光栅被配置为以第一阶次的第一波长带的入射光和第二波长带的入射光的Littrow反射的二次反射。 由第一和第二衍射光栅反射的光形成由电子照相机成像的衍射图案。 诸如棱镜或衍射光栅的色散装置将成像的干涉图案分离成对应于波长带的单独的像素传感器行。 处理装置从检测器接收信息并从其计算光谱。 在实施例中,光谱仪被配置为计算目标的高光谱图像。

    Optical systems and methods employing a polarimetric optical filter
    6.
    发明授权
    Optical systems and methods employing a polarimetric optical filter 有权
    使用偏振光学滤光器的光学系统和方法

    公开(公告)号:US09347832B2

    公开(公告)日:2016-05-24

    申请号:US14025224

    申请日:2013-09-12

    Abstract: A birefringent filter includes an EM directing element in optical alignment with a first surface of the birefringent plate. A polarimetric imager includes a birefringent filter including a birefringent plate formed of a birefringent material and an EM directing element in optical alignment with a first surface of the birefringent plate. The imager further includes a detector in optical alignment with a second surface of the birefringent plate. A projection system includes an EM directing element and a birefringent filter. The filter includes (1) a birefringent plate formed of a birefringent material and having a first surface in optical alignment with the emissions source, and (2) an EM directing element in optical alignment with a second surface of the birefringent plate.

    Abstract translation: 双折射滤光器包括与双折射板的第一表面光学对准的EM引导元件。 偏振成像器包括双折射滤光器,其包括由双折射材料形成的双折射板和与双折射板的第一表面光学对准的EM引导元件。 成像器还包括与双折射板的第二表面光学对准的检测器。 投影系统包括EM定向元件和双折射滤光器。 滤光器包括(1)由双折射材料形成并具有与放射源光学对准的第一表面的双折射板,和(2)与双折射板的第二表面光学对准的EM引导元件。

    Multiband spatial heterodyne spectrometer and associated methods
    7.
    发明授权
    Multiband spatial heterodyne spectrometer and associated methods 有权
    多频段空间外差谱仪及相关方法

    公开(公告)号:US08922783B2

    公开(公告)日:2014-12-30

    申请号:US13442574

    申请日:2012-04-09

    Applicant: Andrew Bodkin

    Inventor: Andrew Bodkin

    Abstract: A multiband spatial heterodyne spectrometer for determining spectra in first and second wavelength bands has a beamsplitter configured to split incident light and to direct the incident light upon a first and a second diffraction grating. The gratings are configured for Littrow reflection of incident light of the first wavelength band at a first order and Littrow reflection of incident light of the second wavelength band at a second order. Light reflected by the first and the second diffraction grating forms diffraction patterns imaged by an electronic camera. A dispersive device separates the imaged interference patterns onto separate groups of pixel sensors corresponding to the wavelength bands. A processing device receives information from the detector and computes spectra therefrom. The second diffraction grating is split spatially or temporally to provide two different responses, so the system can disambiguate spectra. In embodiments, the spectrometer computes hyperspectral images of a target.

    Abstract translation: 用于确定第一和第二波长带中的光谱的多频带空间外差光谱仪具有被配置为分离入射光并将入射光引导到第一和第二衍射光栅上的分束器。 光栅被配置为以第一阶次的第一波长带的入射光和第二波长带的入射光的Littrow反射的二次反射。 由第一和第二衍射光栅反射的光形成由电子照相机成像的衍射图案。 分散装置将成像的干涉图案分离成对应于波长带的单独的像素传感器组。 处理装置从检测器接收信息并从其计算光谱。 第二个衍射光栅在空间上或时间上分裂以提供两种不同的响应,因此系统可以消除光谱的歧义。 在实施例中,光谱仪计算目标的高光谱图像。

    Limited F-cone light source
    8.
    发明授权
    Limited F-cone light source 失效
    有限的F锥光源

    公开(公告)号:US08451527B2

    公开(公告)日:2013-05-28

    申请号:US13617195

    申请日:2012-09-14

    Applicant: Andrew Bodkin

    Inventor: Andrew Bodkin

    Abstract: A shutter includes micro-optics having first and second concentrator arrays. A transducer laterally displaces one of the first and second concentrator arrays between transmissive and shuttered modes. In the transmissive mode, the arrays of concentrators are optically aligned to permit electromagnetic energy passing through the first array of concentrators to pass through the second array of concentrators. In the shuttered mode, the electromagnetic radiation is blocked from passing through the second array of concentrators. The concentrators may be compound parabolic concentrators, or lenslets positioned on opposing plates with pinholes printed therethrough. The shutter may increase f-number of radiation passing therethrough, and may be used in a limited f-cone radiation source with shuttering abilities, for example reducing f-cone of radiation output from the radiation source.

    Abstract translation: 快门包括具有第一和第二集中器阵列的微光学器件。 换能器在透射和快门模式之间横向移位第一和第二聚光器阵列中的一个。 在透射模式中,聚光器阵列被光学对准以允许通过第一集中器阵列的电磁能量穿过第二阵列的聚光器。 在快门模式中,电磁辐射被阻止通过第二阵列的聚光器。 集中器可以是复合抛物面聚光器,或者位于相对的板上的小透镜,其中针孔印刷在其中。 快门可以增加通过其中的f数量的辐射,并且可以用于具有快门能力的有限的f-锥体辐射源,例如减小从辐射源输出的辐射的f锥。

    Hyperspectral imaging systems
    9.
    发明授权
    Hyperspectral imaging systems 有权
    高光谱成像系统

    公开(公告)号:US08174694B2

    公开(公告)日:2012-05-08

    申请号:US11933253

    申请日:2007-10-31

    Applicant: Andrew Bodkin

    Inventor: Andrew Bodkin

    Abstract: Hyperspectral imaging system and methods that may be used for imaging objects in three-dimensions are disclosed. A cylindrical lens array and/or a slit array may be used to re-image and divide a field of view into multiple channels. The multiple channels are dispersed into multiple spectral signatures and observed on a two-dimensional focal plane array in real time. The entire hyperspectral data cube is collected simultaneously.

    Abstract translation: 公开了可以用于三维成像对象的高光谱成像系统和方法。 可以使用柱面透镜阵列和/或狭缝阵列来将视场重新图像分割成多个通道。 将多个通道分散到多个光谱特征中,并在二维焦平面阵列上实时观察。 整个高光谱数据立方体被同时收集。

    Limited F-Cone Light Source
    10.
    发明申请
    Limited F-Cone Light Source 有权
    有限的F锥形光源

    公开(公告)号:US20100328954A1

    公开(公告)日:2010-12-30

    申请号:US12880818

    申请日:2010-09-13

    Applicant: Andrew Bodkin

    Inventor: Andrew Bodkin

    Abstract: A shutter includes micro-optics having first and second concentrator arrays. A transducer laterally displaces one of the first and second concentrator arrays between transmissive and shuttered modes. In the transmissive mode, the arrays of concentrators are optically aligned to permit electromagnetic energy passing through the first array of concentrators to pass through the second array of concentrators. In the shuttered mode, the electromagnetic radiation is blocked from passing through the second array of concentrators. The concentrators may be compound parabolic concentrators, or lenslets positioned on opposing plates with pinholes printed therethrough. The shutter may increase f-number of radiation passing therethrough, and may be used in a limited f-cone radiation source with shuttering abilities, for example reducing f-cone of radiation output from the radiation source.

    Abstract translation: 快门包括具有第一和第二集中器阵列的微光学器件。 换能器在透射和快门模式之间横向移位第一和第二聚光器阵列中的一个。 在透射模式中,聚光器阵列被光学对准以允许通过第一集中器阵列的电磁能量穿过第二阵列的聚光器。 在快门模式中,电磁辐射被阻止通过第二阵列的聚光器。 集中器可以是复合抛物面聚光器,或者位于相对的板上的小透镜,其中针孔印刷在其中。 快门可以增加通过其中的f数量的辐射,并且可以用于具有快门能力的有限的f-锥体辐射源,例如减小从辐射源输出的辐射的f锥。

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