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    SPECTRAL ENCODER
    51.
    发明申请
    SPECTRAL ENCODER 有权
    光谱编码器

    公开(公告)号：US20070296969A1

    公开(公告)日：2007-12-27

    申请号：US11403564

    申请日：2006-04-13

    Applicant: Neil Goldstein ,  Pajo Vujkovic-Cvijin ,  Marsha Fox ,  Steven Adler-Golden ,  Jamine Lee ,  Jason Cline ,  Brian Gregor

    Inventor： Neil Goldstein ,  Pajo Vujkovic-Cvijin ,  Marsha Fox ,  Steven Adler-Golden ,  Jamine Lee ,  Jason Cline ,  Brian Gregor

    IPC: G01J3/28

    CPC classification number: G01J3/2823 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/14 ,  G01J3/18 ,  G01J3/2846

    Abstract: A spectral encoder for producing spectrally selected images of a radiation field containing multiple spectral components. An imaging spectrograph defines a first optical path that produces from the input radiation field a spectrally dispersed image comprising multiple spectral components displaced along a dispersion direction. Spectral pass bands are encoded on the dispersed image by a programmable spatial light modulator using one or more spatial masks. The imaging spectrograph further defines a second optical path that reverses the spectral dispersion of the first path and produces a spectrally-encoded polychromatic output image containing only those spectral components encoded by the spatial mask. The first and second optical paths share a common dispersing element. A detector records at least one spatial region of the spectrally encoded output image.

    Abstract translation: 用于产生包含多个光谱分量的辐射场的光谱选择图像的光谱编码器。 成像光谱仪定义从输入辐射场产生包括沿色散方向移位的多个光谱分量的光谱分散图像的第一光路。 光谱通过频带通过使用一个或多个空间掩模的可编程空间光调制器在分散图像上编码。 成像光谱仪进一步限定第二光路，其反转第一路径的光谱色散，并产生仅包含由空间掩模编码的那些光谱分量的光谱编码的多色输出图像。 第一和第二光路共享共同的分散元件。 检测器记录频谱编码的输出图像的至少一个空间区域。

    APPARATUS AND METHOD PROVIDING A HAND-HELD SPECTROMETER
    52.
    发明申请
    APPARATUS AND METHOD PROVIDING A HAND-HELD SPECTROMETER 审中-公开
    提供手持式光谱仪的装置和方法

    公开(公告)号：US20070194239A1

    公开(公告)日：2007-08-23

    申请号：US11669678

    申请日：2007-01-31

    Applicant: Abraham McAllister ,  Malcolm Smith ,  Kostas Zafirou ,  David Day ,  Michael Butler

    Inventor： Abraham McAllister ,  Malcolm Smith ,  Kostas Zafirou ,  David Day ,  Michael Butler

    IPC: G01N21/35

    CPC classification number: G01J3/18 ,  G01J1/0228 ,  G01J3/02 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/2846 ,  G01J3/32 ,  G01J2003/1213 ,  G01J2003/1286

    Abstract: According to one aspect, an IR spectrometer includes a light source adapted to illuminate a sample, a grating adapted to spectrally disperse a light that has illuminated the sample, a MEMS array adapted to be electrostatically actuated by a controller to control a diffraction of the light, a detector configured to detect the light, and a power source adapted to supply power to the light source and to the MEMS array, wherein the controller is adapted to control the MEMS array so as to manage a power consumption of the IR spectrometer. In one embodiment, the IR spectrometer includes a housing sized and arranged to house the light source, the grating, the MEMS array, the controller, the detector, and the power source in a hand-held device.

    Abstract translation: 根据一个方面，一种IR光谱仪包括适于照射样品的光源，适于光谱分散已经照射样品的光的光栅;适于由控制器静电致动以控制光的衍射的MEMS阵列 ，被配置为检测光的检测器，以及适于向所述光源和所述MEMS阵列供电的电源，其中所述控制器适于控制所述MEMS阵列以便管理所述IR光谱仪的功率消耗。 在一个实施例中，IR光谱仪包括尺寸和布置成在手持式装置中容纳光源，光栅，MEMS阵列，控制器，检测器和电源的外壳。

    Coding and modulation for hyperspectral imaging
    53.
    发明申请
    Coding and modulation for hyperspectral imaging 有权
    高光谱成像的编码和调制

    公开(公告)号：US20070097363A1

    公开(公告)日：2007-05-03

    申请号：US11580925

    申请日：2006-10-16

    Applicant: David Brady ,  Michael Gehm

    Inventor： David Brady ,  Michael Gehm

    IPC: G01J3/28

    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。

    Spectrometer and method for measuring optical spectrum
    57.
    发明授权
    Spectrometer and method for measuring optical spectrum 失效
    光谱仪和光谱测量方法

    公开(公告)号：US06870619B1

    公开(公告)日：2005-03-22

    申请号：US10089161

    申请日：2000-09-27

    Applicant: Jussi Tenhunen ,  Jouko Malinen ,  Markku Känsäkoski

    Inventor： Jussi Tenhunen ,  Jouko Malinen ,  Markku Känsäkoski

    IPC: G01J3/28

    CPC classification number: G01J3/2846 ,  G01J3/28

    Abstract: An entrance slit of the spectrometer is illuminated with optical radiation. An optical component images the entrance slit to an optical modulator by the optical radiation and disperses the optical radiation into a spectrum. The spectrum is modulated by the optical modulator The optical component composes spectral non-dispersive measurement radiation of the spectrum and images the entrance slit included in the measurement radiation to an exit slit which may be the same one as the exit slit or a different one. Measurement radiation is detected from the entrance slit with a detector, which converts the measurement radiation into an electrical measurement signal.

    Abstract translation: 用光学辐射照射光谱仪的入口狭缝。 光学部件通过光学辐射将入射狭缝成像到光学调制器，并将光学辐射分散成光谱。 光谱由光学调制器调制。光学部件构成光谱的非分散光谱测量辐射，并将包含在测量辐射中的入射狭缝成像到出口狭缝，该出口狭缝可以与出口狭缝相同或不同。 使用检测器从入口狭缝检测测量辐射，其将测量辐射转换成电测量信号。

    Coded aperture imaging spectrometer
    58.
    发明授权
    Coded aperture imaging spectrometer 失效
    编码孔径成像光谱仪

    公开(公告)号：US5627639A

    公开(公告)日：1997-05-06

    申请号：US476708

    申请日：1995-06-06

    Applicant: Stephen B. Mende ,  Edward S. Claflin

    Inventor： Stephen B. Mende ,  Edward S. Claflin

    IPC: G01J3/28 ,  G01J3/04

    CPC classification number: G01J3/2823 ,  G01J3/2846

    Abstract: An imaging spectrometer that includes a mask (214) that has an array of n rows (302) and n columns (304) of transmissive elements (306) for transmitting the light from a plurality of locations of an image and of opaque elements (308) for blocking light from a plurality of locations of the image. The transmissive and opaque elements are arranged in a Hadamard pattern having rows (and columns) that are different cyclic iterations of an m-sequence. A grating (110) disperses the transmitted light from the transmissive elements (306) in a linear spatial relationship in a predetermined relationship to the wavelength of the transmitted light. A detector array (406) has a plurality of detector elements (408) arranged in a row to receive the dispersed transmitted light from the grating (110). Each detector element (408) provides an intensity signal indicative of the intensity of the light impinging thereon. A computer (410) generates a spectrum matrix having elements indicative of the frequency spectrum of the plurality of locations of the image. The spectrum matrix is produced by matrix multiplication of an inverse mask pattern matrix and a data matrix. Each element of the mask pattern matrix is either a 0 for opaque elements (308) or a 1 for transmissive elements (306). The inverse mask pattern matrix is generated by replacing each 0 of the pattern by -1, taking the transpose, and multiplying by 2/(n+1). Each row of the data matrix represents data taken from the same location of the image and through a corresponding row of the mask (214).

    Abstract translation: 一种成像光谱仪，其包括具有用于从图像的多个位置和不透明元件（308）传输光的n行（302）和n列（304）的阵列的掩模（214） ），用于阻挡来自图像的多个位置的光。 透射和不透明元件以具有m序列的不同循环迭代的行（和列）的Hadamard图案排列。 光栅（110）将来自透射元件（306）的透射光以与透射光的波长成预定关系的线性空间关系分散。 检测器阵列（406）具有排列成一行的多个检测器元件（408），以接收来自光栅（110）的分散的透射光。 每个检测器元件（408）提供指示入射到其上的光的强度的强度信号。 计算机（410）产生具有指示图像的多个位置的频谱的元素的频谱矩阵。 频谱矩阵由逆掩模图案矩阵和数据矩阵的矩阵乘法产生。 掩模图案矩阵的每个元素对于不透明元素（308）而言为0，对于透射元件（306）为1。 通过将模式的每个0替换为-1，进行转置，乘以2 /（n + 1）来生成逆掩模图案矩阵。 数据矩阵的每一行表示从图像的相同位置和掩模（214）的相应行获得的数据。

    Raman spectrometer having Hadamard electrooptical mask and diode detector
    59.
    发明授权
    Raman spectrometer having Hadamard electrooptical mask and diode detector 失效
    拉曼光谱仪具有Hadamard电光掩模和二极管检测器

    公开(公告)号：US4856897A

    公开(公告)日：1989-08-15

    申请号：US85530

    申请日：1987-08-14

    Applicant: William G. Fateley ,  David C. Tilotta

    Inventor： William G. Fateley ,  David C. Tilotta

    IPC: G01J3/12 ,  G01J3/28 ,  G01J3/44 ,  G02F1/13

    CPC classification number: G01J3/2846 ,  G01J3/44 ,  G02F1/1313 ,  G01J2003/1269 ,  G01J2003/285 ,  G01J3/0229

    Abstract: An improved Raman spectrometer device is provided which provides useful spectral information in situations where Raman spectroscopy has heretofore been unworkable. The spectrometer of the invention makes use of a stationary electrooptical masking device in lieu of conventional slit scanning optics, with the mask being computer controlled to provide a multiplexing function, typically employing Hadamard mathematics. The stationary encoding mask permits use of a relatively inexpensive photodiode detector, as compared with photomultiplier tubes conventionally used in Raman instrumentation. Advantageously, unwanted Rayleigh scattered radiation can be completely eliminated, either by blanking those zones of the mask receiving such radiation, or physically locating the device in such orientation that the Rayleigh scattered radiation does not pass through operative portions of the mask.

    Abstract translation: 提供了一种改进的拉曼光谱仪装置，其在拉曼光谱迄今为止不能工作的情况下提供有用的光谱信息。 本发明的光谱仪利用固定的电光掩模装置代替传统的狭缝扫描光学器件，其掩模被计算机控制以提供通常采用Hadamard数学的复用功能。 与常规用于拉曼仪器的光电倍增管相比，固定编码掩模允许使用相对便宜的光电二极管检测器。 有利的是，可以通过对接收这种辐射的掩模的那些区域进行消隐，或者将该器件物理地定位成使得瑞利散射辐射不通过掩模的可操作部分的方向，来完全消除不需要的瑞利散射辐射。

    Stationary, electrically alterable, optical masking device and spectroscopic apparatus employing same
    60.
    发明授权
    Stationary, electrically alterable, optical masking device and spectroscopic apparatus employing same 失效
    固定的，电可变的光掩模装置和使用它的分光装置

    公开(公告)号：US4799795A

    公开(公告)日：1989-01-24

    申请号：US115639

    申请日：1987-10-26

    Applicant: William G. Fateley

    Inventor： William G. Fateley

    IPC: G01J3/28 ,  G02F1/01

    CPC classification number: G02F1/0147 ,  G01J3/2846 ,  G01J3/0229

    Abstract: An improved masking device for optical-type radiations is provided and employed in improved optical apparatus, such as spectrometers, requiring alterable radiation masking. The masking device involves no movable parts, is adapted to operate in a fixed position and has radiation transmission and/or reflection characteristics which are selectively alterable merely by controlling electrical excitation applied to the device. The masking device typically has a plurality of separated and predisposedly offset, coplanar zones of solidified, electro-optically active material carried upon a typically transparent substrate and bounded by areas of an opaque material. The active material may be any of the crystalline or polycrystalline materials which have the property of changing their optical characteristic between being relatively transmissive and being relatively reflective and/or opaque for radiations of the wavelengths of interest, in response to the passage of electrical current through the material. Alteration of the optical masking pattern configuration of the masking device under electrical control is sufficiently rapid to accommodate to computerized optical apparatus, such as infrared spectroscopic systems utilizing Hadamard transforms or analogous mathematical techniques.

    Abstract translation: 提供了用于光学型辐射的改进的掩蔽装置，并用于改进的光学装置，例如需要可变辐射掩蔽的光谱仪。 掩模装置不包括可移动部件，适于在固定位置操作并且具有仅通过控制施加到装置的电激励来选择性地改变的辐射透射和/或反射特性。 掩模装置通常具有多个分离且易于偏移的共面的固定的电光活性材料区域，该区域承载在通常透明的基板上并且由不透明材料的区域限定。 活性材料可以是任何晶体或多晶材料，其具有响应于电流通过的通过而改变它们的光学特性在相对透射之间并且对于感兴趣的波长的辐射具有相对反射性和/或不透明性的特性 材料。 在电气控制下掩蔽装置的光学掩模图案配置的改变足够快以适应计算机化的光学装置，例如利用Hadamard变换的红外光谱系统或类似的数学技术。

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