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    Coding and modulation for hyperspectral imaging
    71.
    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。

    Two-Dimensional Spatial Radiation Modulator
    72.
    发明申请
    Two-Dimensional Spatial Radiation Modulator 有权
    二维空间辐射调制器

    公开(公告)号：US20080043314A1

    公开(公告)日：2008-02-21

    申请号：US11925115

    申请日：2007-10-26

    Applicant: Thomas Hagler

    Inventor： Thomas Hagler

    IPC: G02F1/00

    CPC classification number: G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/0229 ,  G01J3/027 ,  G01J3/0289 ,  G01J3/06 ,  G01J3/1804 ,  G01J3/2846 ,  G01J3/42 ,  G01J2001/4242 ,  G01J2003/1217

    Abstract: A two dimensional spatial radiation modulator rotated about a rotation axis to modulate components of an incident radiation beam to encode the beam. The modulator includes sub-regions in a first annular segment being patterned to form a pair of radiation filters having substantially complementary modulation functions. The pair of radiation filters produces a first encoded component with a characteristic determined by the relative intensities of radiation from the beam incident on the pair of filters. The modulator also includes sub-regions in a second annular segment being patterned to form a filter that produces a second encoded component with a characteristic determined by the total intensity of radiation from the beam incident on the filter.

    Abstract translation: 围绕旋转轴旋转的二维空间辐射调制器，以调制入射辐射束的分量以编码光束。 调制器包括在第一环形区段中的子区域被图案化以形成具有实质上互补的调制功能的一对辐射滤波器。 该对辐射滤波器产生具有由入射在该对滤波器上的光束的辐射的相对强度确定的特性的第一编码分量。 调制器还包括被构图的第二环形区段中的子区域，以形成滤波器，该滤波器产生具有由入射在滤波器上的光束的总辐射强度确定的特性的第二编码分量。

    Optical spectral power monitors employing frequency-division-multiplexing detection schemes
    79.
    发明授权
    Optical spectral power monitors employing frequency-division-multiplexing detection schemes 有权
    采用频分复用检测方案的光谱功率监视器

    公开(公告)号：US06753960B1

    公开(公告)日：2004-06-22

    申请号：US10006533

    申请日：2001-12-05

    Applicant: Pavel G. Polynkin ,  Jeffrey P. Wilde

    Inventor： Pavel G. Polynkin ,  Jeffrey P. Wilde

    IPC: G01J328

    CPC classification number: G01J3/433 ,  G01J3/02 ,  G01J3/021 ,  G01J3/26 ,  G01J3/2846 ,  G01J2001/4242 ,  G01J2003/2866 ,  G02B6/12004 ,  G02B6/272 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29391 ,  G02B6/4215 ,  G02B6/4249

    Abstract: The present invention provides a method and apparatus for optical spectral power monitoring employing novel frequency-division-multiplexing detection schemes. The optical spectral power monitoring apparatus of the present invention uses a wavelength-dispersing means (e.g., a diffraction grating) to separate a multi-wavelength optical signal into multiple spectral channels, and an array of beam-modulating elements (e.g., micromirrors) positioned such that each beam-modulating element receives a unique one of the spectral channels. The beam-modulating elements are individually controllable such that the optical power levels of the spectral channels coupled into an output port carry distinct dither modulation signals. By performing a synchronous detection of the dither modulation signals, in conjunction with a predetermined calibration table, an optical power spectrum of the multi-wavelength optical signal can be derived. Such dither modulation signals may also be used as “identification markers” (or frequency tags) for identifying individual spectral channels in an optical networking application.

    Abstract translation: 本发明提供一种采用新型频分复用检测方案的光谱功率监测方法和装置。 本发明的光谱功率监测装置使用波长分散装置（例如，衍射光栅）将多波长光信号分离成多个光谱通道，并且将光束调制元件（例如，微镜）的阵列定位 使得每个光束调制元件接收唯一的光谱通道之一。 光束调制元件是可单独控制的，使得耦合到输出端口的光谱通道的光功率电平携带不同的抖动调制信号。 通过执行抖动调制信号的同步检测，结合预定的校准表，可以导出多波长光信号的光功率谱。 这种抖动调制信号也可以用作用于识别光学网络应用中的各个频谱信道的“识别标记”（或频率标签）。

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