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    Two-dimensional spatial radiation modulator
    11.
    发明授权
    Two-dimensional spatial radiation modulator 有权
    二维空间辐射调制器

    公开(公告)号：US07466468B2

    公开(公告)日：2008-12-16

    申请号：US11925115

    申请日：2007-10-26

    Applicant: Thomas W. Hagler

    Inventor： Thomas W. Hagler

    IPC: G02B26/08

    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。

    Method and apparatus for estimating a property of a fluid downhole
    13.
    发明申请
    Method and apparatus for estimating a property of a fluid downhole 有权
    用于估计井下液体的性质的方法和装置

    公开(公告)号：US20080030729A1

    公开(公告)日：2008-02-07

    申请号：US11725620

    申请日：2007-03-20

    Applicant: Rocco DiFoggio

    Inventor： Rocco DiFoggio

    IPC: G01J3/28

    CPC classification number: G01J3/02 ,  G01J3/0256 ,  G01J3/18 ,  G01J3/2846 ,  G01N21/274 ,  G01N21/31 ,  G01N21/64 ,  G01N21/65

    Abstract: A method for estimating a property of a fluid downhole is disclosed, the method including but not limited to exposing the fluid to light downhole; directing different wavelengths of light that have interacted with the fluid light toward a first optical grating; measuring light at different wavelengths reflected from the first optical grating; and estimating a property of the fluid from the measured light. An apparatus for estimating a property of a fluid downhole is disclosed, the apparatus including but not limited to a downhole tool for estimating a property of a fluid downhole, including but not limited to a light source that illuminates the fluid downhole; a first optical grating having a plurality of elements that selectively light that have interacted with the fluid; and a sensor that measures the light reflected from the first optical grating elements.

    Abstract translation: 公开了一种用于估计井下流体性质的方法，该方法包括但不限于将流体暴露于井下; 将与流体光相互作用的不同波长的光导向第一光栅; 测量从第一光栅反射的不同波长的光; 并从所测量的光中估计流体的性质。 公开了一种用于估计井下流体性质的装置，该装置包括但不限于用于估计井下流体性质的井下工具，包括但不限于在井下照射流体的光源; 第一光栅，其具有选择性地点亮与所述流体相互作用的多个元件; 以及传感器，其测量从第一光栅元件反射的光。

    SPATIALLY-REGISTERED WAVELENGTH CODING
    14.
    发明申请
    SPATIALLY-REGISTERED WAVELENGTH CODING 有权
    空间注册波长编码

    公开(公告)号：US20070296965A1

    公开(公告)日：2007-12-27

    申请号：US11735562

    申请日：2007-04-16

    Applicant: David Brady ,  Michael Gehm

    Inventor： David Brady ,  Michael 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。

    High performance miniature spectrometer
    16.
    发明授权
    High performance miniature spectrometer 失效
    高性能微型光谱仪

    公开(公告)号：US07034935B1

    公开(公告)日：2006-04-25

    申请号：US10394662

    申请日：2003-03-24

    Applicant: Roman V. Kruzelecky

    Inventor： Roman V. Kruzelecky

    IPC: G01J3/28

    CPC classification number: G02B6/10 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0205 ,  G01J3/0232 ,  G01J3/0259 ,  G01J3/0286 ,  G01J3/04 ,  G01J3/20 ,  G01J3/2803 ,  G01J3/2846

    Abstract: An infrared spectrometer is described wherein a detector array is optically coupled to a slab waveguide structure. A focal plane is provided outside of the output face of the slab waveguide structure and the detector array is mounted onto the slab waveguide structure at a fixed distance from the output face on the output focal plane.

    Abstract translation: 描述了一种红外光谱仪，其中检测器阵列光学耦合到平板波导结构。 焦平面设置在平板波导结构的输出面的外侧，检测器阵列以与输出焦平面上的输出面一定距离的方式安装在平板波导结构上。

    High capacity spread spectrum optical communications system
    17.
    发明授权
    High capacity spread spectrum optical communications system 失效
    高容量扩频光通信系统

    公开(公告)号：US5867290A

    公开(公告)日：1999-02-02

    申请号：US752211

    申请日：1996-11-19

    Applicant: Birendra Dutt ,  Manouher Naraghi ,  James Chan

    Inventor： Birendra Dutt ,  Manouher Naraghi ,  James Chan

    IPC: G01J3/28 ,  H04J14/00 ,  H04J14/02

    CPC classification number: G01J3/2846 ,  H04J14/005 ,  H04J14/02

    Abstract: Methods and apparati for spatially encoding and decoding spread spectrum communication signals using broad band light sources are disclosed. The encoding algorithms involve the use of orthogonal spatial wavelets, which are preferably discrete attenuation functions of light from different sources so that the discrete attenuation function is imposed upon the spectrum of the light source. The function may be used either merely for providing an encoded channel or by providing a second mask that may be, for example, the complement of the discrete attenuation function so that the light beam is discrete with the first attenuation function.

    Abstract translation: 公开了使用宽带光源对空间编码和解码扩频通信信号的方法和装置。 编码算法涉及使用正交空间小波，其优选地是来自不同源的光的离散衰减函数，使得离散衰减函数被施加在光源的光谱上。 该功能可以仅用于提供编码信道，或者可以通过提供可以是例如离散衰减函数的互补的第二掩模，使得光束与第一衰减函数离散。

    Apparatus for image multispectral sensing employing addressable spatial mask
    18.
    发明授权
    Apparatus for image multispectral sensing employing addressable spatial mask 失效
    使用可寻址空间掩模的图像多光谱感测装置

    公开(公告)号：US5867264A

    公开(公告)日：1999-02-02

    申请号：US950928

    申请日：1997-10-15

    Applicant: Michele Hinnrichs

    Inventor： Michele Hinnrichs

    IPC: G01J3/04 ,  G01J3/28 ,  G01J3/457 ,  G01J3/02

    CPC classification number: G01J3/2846 ,  G01J3/04 ,  G01J3/457

    Abstract: An apparatus for spectral detection of remote objects. The apparatus consists of an input optic which focuses the field of view onto an image receiving surface consisting of an addressable spatial mask. The mask sequentially projects portions of the scene onto a diffractive optical element which focuses onto a photodetector array. The first image receiving surface of mask is partitioned into independently addressable and controllable subsurfaces, or gates, adapted to receive an electronic control signal from a programmable control signal generator. Each gate in the receiving mask directs a portion of the image incident thereon to a diffractive lens in response to a control signal communicated thereto. This gated image is dispersed by the diffractive lens and focused upon the photosensitive surface of a photodetector array. The photodetector array is partitioned into pixels having a number in ratio to the gates in the addressable mask. The signal output of a pixel within the optical path of the dispersed gated light is sampled and stored in a signal processor. A control signal generator sequentially or randomly addresses each gate in the mask causing the gate to direct that portion of the image thereon to the diffractive lens. The output signal from each pixel on the photodetector array corresponding to the addressed gate in the mask is sampled and stored until the entire image is recorded. This process is repeated as the diffractive optic is scanned through the spectral range of interest. The mask provides enhanced spectral and spatial resolution of the scene.

    Abstract translation: 一种远程物体光谱检测装置。 该装置由将视场聚焦到由可寻址空间掩模组成的图像接收表面上的输入光学元件组成。 掩模顺序地将场景的部分投影到聚焦到光电检测器阵列上的衍射光学元件上。 掩模的第一图像接收表面被划分成独立可寻址和可控的子表面或门，适于从可编程控制信号发生器接收电子控制信号。 接收掩模中的每个门响应于与其通信的控制信号，将入射到其上的图像的一部分引导到衍射透镜。 该选通图像由衍射透镜分散并聚焦在光电检测器阵列的感光表面上。 光电检测器阵列被划分为与可寻址掩模中的栅极的数量成比例的像素。 分散门控光的光路内的像素的信号输出被采样并存储在信号处理器中。 控制信号发生器顺序地或随机地寻址掩模中的每个栅极，使得栅极将图像的该部分引导到衍射透镜。 对应于掩模中寻址的栅极的光电检测器阵列上每个像素的输出信号被采样并存储直到记录整个图像。 当衍射光学器件通过感兴趣的光谱范围被扫描时，重复该过程。 该面具提供了增强的场景的光谱和空间分辨率。

    Spectrometric instrument with transposition of ray paths
    19.
    发明授权
    Spectrometric instrument with transposition of ray paths 失效
    具有RAP PATHS传输的光谱仪器

    公开(公告)号：US3639062A

    公开(公告)日：1972-02-01

    申请号：US3639062D

    申请日：1969-12-03

    Applicant: ONERA (OFF NAT AEROSPATIALE)

    Inventor： GIRARD ANDRE J ,  BOTINEAU JEAN

    IPC: G01J3/12 ,  G01J3/02 ,  G01J3/08 ,  G01J3/28 ,  G01J3/42

    CPC classification number: G01J3/08 ,  G01J3/02 ,  G01J3/021 ,  G01J3/2846

    Abstract: Spectrometer for the analysis of a polychromatic radiation flux which comprises, in a plane, a single radiation-conveying window having two multiplicities of alternating zones with different conveying characters for the radiation flux to be analyzed and such that the pattern of the zone boundaries has an axis of symmetry in that plane and a center of symmetry, the spectrometer also comprising an image-forming apparatus made up of a dispersive system having a spectrum-scanning movement and a collimating system, a receiver for the radiation flux, and means to modulate the radiation flux. The pattern of the zone boundaries and the image-forming apparatus are such that this apparatus casts, in the plane of the single window, a plurality of monochromatic enantiomorphous images of the window provided respectively by the monochromatic radiations constituting the flux to be analyzed, the center of one of these images being, for each position of the dispersive system, coincident with the center of the window.

    Abstract translation: 用于分析多色辐射通量的光谱仪，其在平面中包括具有两个具有不同输送特性的交替区域的单个辐射传送窗口用于待分析的辐射通量，并且使得区域边界的图案具有 该平面中的对称轴和对称中心，光谱仪还包括由具有光谱扫描运动的分散系统和准直系统构成的图像形成装置，用于辐射通量的接收器，以及用于调制 辐射通量。

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