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    Spatially-registered wavelength coding
    1.
    发明授权
    Spatially-registered wavelength coding 有权
    空间注册的波长编码

    公开(公告)号：US07773218B2

    公开(公告)日：2010-08-10

    申请号：US11735562

    申请日：2007-04-16

    Applicant: David J. Brady ,  Michael E. Gehm

    Inventor： David J. Brady ,  Michael E. Gehm

    IPC: G01J3/04

    CPC classification number: G01J3/2846 ,  G01J3/02 ,  G01J3/0229 ,  G01J3/2823

    Abstract: Embodiments of the present invention relate to systems and methods for spectral imaging. Electromagnetic energy emanating from an object is passed through a first dispersive element, a coded aperture, and a second dispersive element to a detector plane. A wavelength-dependent shift is created by the first dispersive element. The coded aperture modulates the image emanating from the first dispersive element. The wavelength-dependent shift is removed from the modulated image by the second dispersive element producing a wavelength-independent image measured by the detector. A spectral image of the object is calculated from the measured image, a wavelength-dependent shift of the first dispersive element, the code of the coded aperture, and a wavelength dependent shift of the second dispersive element. A spectral image can be calculated from measurements obtained in a single time step and from a number of measurements that is less than the number of elements in the spectral image.

    Abstract translation: 本发明的实施例涉及用于光谱成像的系统和方法。 从物体发出的电磁能量通过第一色散元件，编码孔径和第二色散元件到达检测器平面。 由第一色散元素产生与波长相关的偏移。 编码孔径调制从第一色散元件发出的图像。 通过第二分散元件从调制图像中去除与波长相关的移位，从而产生由检测器测量的与波长无关的图像。 从测量图像，第一色散元素的波长相关移位，编码孔径的代码和第二色散元件的波长相关移位计算物体的光谱图像。 可以从在单个时间步骤中获得的测量值和小于光谱图像中的元素数量的多个测量值来计算光谱图像。

    Optical spectroscopy with overlapping images
    3.
    发明授权
    Optical spectroscopy with overlapping images 有权
    具有重叠图像的光谱

    公开(公告)号：US07283232B2

    公开(公告)日：2007-10-16

    申请号：US11422197

    申请日：2006-06-05

    Applicant: David J. Brady ,  Michael E. Gehm ,  Evan C. Cull

    Inventor： David J. Brady ,  Michael E. Gehm ,  Evan C. Cull

    IPC: G01J3/28

    CPC classification number: G01J3/28 ,  G01J3/02 ,  G01J3/0229 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/1217 ,  G01J2003/1239

    Abstract: An optical spectrometer distinguishes ambiguity between different wavelength constituent components present in incident light. A spatial filter in the spectrometer spatially filters the incident light. A dispersion system receives the spatially filtered light and disperses images of the spatial filter in a wavelength dependent fashion such that two or more wavelength-specific images at least partially overlap at a detector system. The detector system comprises a detector array and processor that detects and processes the dispersed light to remove ambiguity between one or more of the overlapping images. The detector array may detect coded aperture images associated with a coded aperture spatial filter defined by a coded aperture function, and the processor may process the detector array output signals using an analysis function that complements the coded aperture function. The detector system may filter the spatial filter images and electronically process the resulting detector array output signals.

    Abstract translation: 光谱仪区分入射光中存在的不同波长组成成分之间的模糊性。 光谱仪中的空间滤光片对入射光进行空间滤光。 分散系统接收空间滤波的光并且以波长依赖的方式分散空间滤波器的图像，使得两个或多个波长特定图像在检测器系统处至少部分重叠。 检测器系统包括检测器阵列和处理器，其检测和处理分散的光以消除一个或多个重叠图像之间的歧义。 检测器阵列可以检测与由编码孔径函数定义的编码孔径空间滤波器相关联的编码孔径图像，并且处理器可以使用补充编码孔径函数的分析函数来处理检测器阵列输出信号。 检测器系统可以对空间滤波器图像进行滤波，并对所得到的检测器阵列输出信号进行电子处理。

    Optical spectroscopy utilizing planar spectral filters
    4.
    发明授权
    Optical spectroscopy utilizing planar spectral filters 有权
    利用平面光谱滤光片的光谱

    公开(公告)号：US07561274B2

    公开(公告)日：2009-07-14

    申请号：US11532554

    申请日：2006-09-18

    Applicant: David J Brady ,  Bob D Guenther ,  Michael E Gehm ,  Scott T McCain

    Inventor： David J Brady ,  Bob D Guenther ,  Michael E Gehm ,  Scott T McCain

    IPC: G01B9/02 ,  G01J3/45

    CPC classification number: G01J3/26 ,  G01J3/0208 ,  G01J3/18 ,  G01J3/1838 ,  G01J3/2803

    Abstract: An optical spectrometer and/or a method of optical spectroscopy is described herein. One exemplary spectrometer includes a planar spectral filter, a dispersion system, and a detector array having at least two dimensions. The planar spectral filter filters incident light to generate a plurality of wavelength dependent spatial patterns. The dispersion system disperses the spatial patterns along at least one dimension in a wavelength dependent fashion onto the detector array. As a result, spatial patterns corresponding to different wavelengths are centered at different locations on the detector array. The dispersed spatial patterns superimpose at the detector array in an offset but overlapping relationship, creating an asymmetric image that facilitates the spectral analysis of a wide range of light sources, including diffuse or spectrally complex light sources.

    Abstract translation: 本文描述了光谱仪和/或光谱法的方法。 一个示例性光谱仪包括平面光谱滤光器，分散系统和具有至少两个维度的检测器阵列。 平面光谱滤波器对入射光进行滤光以产生多个依赖于波长的空间图案。 分散系统将沿着至少一个维度的空间图案以波长依赖的方式分散到检测器阵列上。 结果，对应于不同波长的空间图案集中在检测器阵列上的不同位置。 分散的空间图案以偏移但重叠的关系叠加在检测器阵列处，产生促进宽范围光源（包括漫射或光谱复合光源）的光谱分析的不对称图像。

    Coded mass spectroscopy methods, devices, systems and computer program products
    5.
    发明授权
    Coded mass spectroscopy methods, devices, systems and computer program products 有权
    编码质谱法，设备，系统和计算机程序产品

    公开(公告)号：US07399957B2

    公开(公告)日：2008-07-15

    申请号：US11332303

    申请日：2006-01-17

    Applicant: Charles B. Parker ,  David J. Brady ,  Jeffrey T. Glass ,  Michael E. Gehm

    Inventor： Charles B. Parker ,  David J. Brady ,  Jeffrey T. Glass ,  Michael E. Gehm

    IPC: B01D59/44

    CPC classification number: H01J49/0027

    Abstract: A coded mass spectrometer incorporates a spatial or temporal code to reduce the resolution/sensitivity dichotomy inherent in mass spectrometry. The code is used to code one or more portions of a mass spectrometer. Coding patterns, such as Hadamard codes, Walsh codes, and perfect code sequences can be used. The coding can be spatial, for example, by using an aperture mask and/or temporal, for example, by coded injection of ions for analysis.

    Abstract translation: 编码质谱仪包含空间或时间码，以降低质谱固有的分辨率/灵敏度二分法。 该代码用于编码质谱仪的一个或多个部分。 可以使用编码模式，例如Hadamard码，沃尔什码和完美码序列。 编码可以是空间的，例如通过使用孔径掩模和/或时间，例如通过编码注入离子来进行分析。

    Coding and modulation for hyperspectral imaging
    6.
    发明授权
    Coding and modulation for hyperspectral imaging 有权
    高光谱成像的编码和调制

    公开(公告)号：US07336353B2

    公开(公告)日：2008-02-26

    申请号：US11580925

    申请日：2006-10-16

    Applicant: David J. Brady ,  Michael E. Gehm

    Inventor： David J. Brady ,  Michael E. Gehm

    IPC: G01J3/28 ,  G01J3/04

    CPC classification number: G01J3/2823 ,  G01J3/02 ,  G01J3/0229 ,  G01J3/2846 ,  G02B2207/129

    Abstract: Embodiments of the present invention relate to systems and methods for spectral imaging. In one embodiment, an image of the scene is formed on a coded aperture of a spectrometer. A coded image from the coded aperture is detected on a two-dimensional detector array of the spectrometer through a spectrally dispersive element of the spectrometer. Data from the two-dimensional detector array is collected as the coded image is varied over time. The spectral image is estimated from the data collected and the variation of the coded image over time. The data collected is varied over time through translation, rotation, and defocus.

    Abstract translation: 本发明的实施例涉及用于光谱成像的系统和方法。 在一个实施例中，场景的图像形成在光谱仪的编码孔径上。 来自编码孔径的编码图像通过光谱仪的光谱色散元件在光谱仪的二维检测器阵列上检测。 当编码图像随时间变化时，来自二维检测器阵列的数据被收集。 从所收集的数据和编码图像随时间的变化估计光谱图像。 收集的数据随着时间的推移随着翻译，旋转和散焦而变化。

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