公开(公告)号：US07796252B2

公开(公告)日：2010-09-14

申请号：US12317239

申请日：2008-12-19

Applicant: Robert Randall Wilt ,  George E. Toth

Inventor： Robert Randall Wilt ,  George E. Toth

IPC: G01J3/28

CPC classification number: G01J3/18 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/28

Abstract: A novel scanning monochromator uses a PM stepper-motor to directly drive a diffraction grating. By employing interpolated encoder feedback in combination with the PM stepper-motor feedback, a resolution of over 250,000 pulsed steps is available for each revolution of the PM stepper-motor. This translates into more than 20,000 incremental angular-displacement steps over a usable 30° range of dispersion-element rotation. High field accuracy is achieved by a direct PM stepper-driven diffraction grating, and a unique calibration approach based on Wood's anomalies. A plurality of diffracted light beams emerge from the oscillating grating, and these are scanned past a detector for detection, whereby the relative rotation information of the grating can be detected with great accuracy. A number of tolerance-correcting measures are also included to yield an extremely accurate, self-lubricating scanning monochromator that can be economically produced.

Abstract translation: 一种新型扫描单色仪使用PM步进电机直接驱动衍射光栅。 通过采用内插编码器反馈与PM步进电机反馈的组合，可以对PM步进电机的每转进行超过250,000个脉冲步进的分辨率。 这可以在可用的30°范围的色散元素旋转中转化为超过20,000个增量角位移步长。 通过直接PM步进驱动衍射光栅实现高场精度，并且基于Wood的异常进行独特的校准方法。 多个衍射光束从振荡光栅出射，并将其扫描通过检测器进行检测，由此可以高精度地检测光栅的相对旋转信息。 还包括许多公差校正措施以产生可经济地生产的非常准确的，自润滑的扫描单色仪。

公开(公告)号：US20100078564A1

公开(公告)日：2010-04-01

申请号：US12631574

申请日：2009-12-04

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

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

IPC: G01J5/02

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, to 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。

公开(公告)号：US20090303562A1

公开(公告)日：2009-12-10

申请号：US12135354

申请日：2008-06-09

Applicant: Christopher S. Koeppen ,  Steven E. Parks

Inventor： Christopher S. Koeppen ,  Steven E. Parks

IPC: G02B26/00

CPC classification number: G01J3/06 ,  G01J1/029 ,  G01J3/02 ,  G01J3/021 ,  G01J3/14 ,  G01J3/1804 ,  G01J2003/064 ,  G01J2003/1213 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29389 ,  G02B6/34

Abstract: For spectrally filtering at least one input beam, a first reflective element is configured to tilt to multiple tilt orientations that each corresponds to a different angle of propagation of at least one input beam. One or more optical elements are configured to change at least some of the relative angles of propagation of the input beam for different tilt orientations of the first reflective element. A spectrally dispersive element is configured to receive the input beam at a location at which the central ray of the input beam is incident at different points on the spectrally dispersive element for each of the tilt orientations, and configured to disperse spectral components of the input beam at different respective angles in a spectral plane. The first reflective element is configured to tilt to select at least one and fewer than all of the dispersed spectral components to be directed to a selected output path.

Abstract translation: 为了对至少一个输入光束进行光谱滤波，第一反射元件被配置为倾斜到多个倾斜取向，其各自对应于至少一个输入光束的不同传播角度。 一个或多个光学元件被配置为改变用于第一反射元件的不同倾斜取向的输入光束的相对传播角度的至少一些。 光谱分散元件被配置为在输入光束的中心射线入射到用于每个倾斜取向的光谱色散元件上的不同点的位置处接收输入光束，并且被配置为分散输入光束的光谱分量 在光谱平面中以不同的相应角度。 第一反射元件被配置为倾斜以选择要被引导到所选择的输出路径的至少一个且少于所有分散的光谱分量。

公开(公告)号：US07605370B2

公开(公告)日：2009-10-20

申请号：US11648851

申请日：2006-12-29

Applicant: James T. Russell

Inventor： James T. Russell

IPC: G01J3/18

CPC classification number: G01J3/18 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/36 ,  G01N21/3504 ,  G01N2021/3133 ,  G01N2021/317 ,  G01N2021/3185 ,  G02B26/0841 ,  G02B26/106 ,  H02K33/06

Abstract: A robust, compact spectrometer apparatus for determining respective concentrations or partial pressures of multiple gases in a gas sample with single as well as multiple and even overlapping, absorption or emission spectra that span a wide spectral range.

Abstract translation: 一种坚固，紧凑的光谱仪装置，用于确定气体样品中多种气体的浓度或分压，其具有单个以及跨越宽光谱范围的多个且甚至重叠的吸收或发射光谱。

公开(公告)号：US20090225315A1

公开(公告)日：2009-09-10

申请号：US12317239

申请日：2008-12-19

Applicant: Robert Randall Wilt ,  George E. Toth

Inventor： Robert Randall Wilt ,  George E. Toth

IPC: G01J3/28

CPC classification number: G01J3/18 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/28

Abstract: A novel scanning monochromator uses a PM stepper-motor to directly drive a diffraction grating. By employing interpolated encoder feedback in combination with the PM stepper-motor feedback, a resolution of over 250,000 pulsed steps is available for each revolution of the PM stepper-motor. This translates into more than 20,000 incremental angular-displacement steps over a usable 30° range of dispersion-element rotation. High field accuracy is achieved by a direct PM stepper-driven diffraction grating, and a unique calibration approach based on Wood's anomalies. A plurality of diffracted light beams emerge from the oscillating grating, and these are scanned past a detector for detection, whereby the relative rotation information of the grating can be detected with great accuracy. A number of tolerance-correcting measures are also included to yield an extremely accurate, self-lubricating scanning monochromator that can be economically produced.

公开(公告)号：US07515260B2

公开(公告)日：2009-04-07

申请号：US11925076

申请日：2007-10-26

Applicant: Thomas W. Hagler

Inventor： Thomas W. Hagler

IPC: G01J3/04

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 chemometric analyzer for analyzing a plurality of analytes. The analyzer disperses radiation by wavelength along an encoding axis. The analyzer includes a spatial radiation modulator having a plurality of radiation filters. Each radiation filter modulates the intensity of a corresponding spectral component in the radiation.

Abstract translation: 用于分析多种分析物的化学计量分析仪。 分析仪沿着编码轴沿波长分散辐射。 分析仪包括具有多个辐射过滤器的空间辐射调制器。 每个辐射滤波器调制辐射中对应的光谱分量的强度。

公开(公告)号：US20090086200A1

公开(公告)日：2009-04-02

申请号：US11986548

申请日：2007-11-20

Applicant: E. Neil Lewis ,  Kenneth S. Haber

Inventor： E. Neil Lewis ,  Kenneth S. Haber

IPC: G01J3/00

CPC classification number: G01J3/06 ,  B01F9/04 ,  B01F15/00207 ,  B01F15/00214 ,  B01F2215/0032 ,  G01J3/0218 ,  G01J3/42 ,  G01N21/03 ,  G01N21/35 ,  G01N21/3577 ,  G01N21/85 ,  G01N21/9508 ,  G01N2021/3595 ,  G01N2021/8592

Abstract: In one general aspect, a spectroscopic method for monitoring heterogeneity of a sample is disclosed. In this method, sampled spectroscopic measurements are acquired over a range of different micro locations in a macro-sample of the sample. This step is repeated for micro-locations in further macro-samples of the sample, and a statistical measure of chemical heterogeneity is derived from the acquisitions. In another general aspect, differently sized samples are acquired, and a statistical measure of chemical heterogeneity is derived from these acquisitions.

Abstract translation: 在一般的方面，公开了一种用于监测样品异质性的光谱方法。 在该方法中，在样本的宏观样本中的不同微位置的范围上获取采样的光谱测量。 对于样品的其他宏观样品中的微位置重复此步骤，并且从采集中得出化学异质性的统计量度。 在另一个一般方面，获得不同大小的样品，并且从这些获取中得出化学异质性的统计量度。

公开(公告)号：US07483134B2

公开(公告)日：2009-01-27

申请号：US11351056

申请日：2006-02-09

Applicant: George E. Toth ,  Robert Wilt

Inventor： George E. Toth ,  Robert Wilt

IPC: G01J3/28

CPC classification number: G01J3/18 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/28

Abstract: A novel scanning monochromator uses a PM stepper-motor to directly drive a diffraction grating. By employing interpolated encoder feedback in combination with the PM stepper-motor feedback, a resolution of over 250,000 pulsed steps is available for each revolution of the PM stepper-motor. This translates into more than 20,000 incremental angular-displacement steps over a usable 30° range of dispersion-element rotation. High field accuracy is achieved by a direct PM stepper-driven diffraction grating, and a unique calibration approach based on Wood's anomalies. A plurality of diffracted light beams emerge from the oscillating grating, and these are scanned past a detector for detection, whereby the relative rotation information of the grating can be detected with great accuracy. A number of tolerance-correcting measures are also included to yield an extremely accurate, self-lubricating scanning monochromator that can be economically produced.

Abstract translation: 一种新型扫描单色仪使用PM步进电机直接驱动衍射光栅。 通过采用内插编码器反馈与PM步进电机反馈的组合，可以对PM步进电机的每转进行超过250,000个脉冲步进的分辨率。 这可以在可用的30°范围的色散元素旋转中转化为超过20,000个增量角位移步长。 通过直接PM步进驱动衍射光栅实现高场精度，并且基于Wood的异常进行独特的校准方法。 多个衍射光束从振荡光栅出射，并将它们扫描通过检测器进行检测，从而可以高精度地检测光栅的相对旋转信息。 还包括许多公差校正措施以产生可经济地生产的非常准确的，自润滑的扫描单色仪。

公开(公告)号：US20080309934A1

公开(公告)日：2008-12-18

申请号：US12186514

申请日：2008-08-06

Applicant: GENE GOULD ,  Michael J. Conrad

Inventor： GENE GOULD ,  Michael J. Conrad

IPC: G01J3/30

CPC classification number: G01J3/06 ,  G01J1/0437 ,  G01J3/02 ,  G01J3/12 ,  G01J3/18 ,  G01J3/1838 ,  G01J3/4406 ,  G01N21/6452 ,  G01N21/6458 ,  G01N2021/6417 ,  G01N2021/6463 ,  G01N2021/6482

Abstract: A fluorescence spectrophotometer having an excitation double monochromator, a coaxial excitation/emission light transfer module, and an emission double monochromator. Each monochromator includes a pair of holographic concave gratings mounted to precisely select a desired band of wavelengths from incoming broadband light without using other optical elements, such as mirrors. Selected excitation light is directed into a sample well by a light transfer module that includes a coaxial excitation mirror positioned to direct excitation light directly to the bottom of a well of a multi-well plate. Fluorescence emission light that exits the well opening is collected by a relatively large coaxial emission mirror. The collected emission light is wavelength selected by the emission double monochromator. Selected emission light is detected by a photodetector module.

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。