Spectrometer
    11.
    发明申请
    Spectrometer 有权
    光谱仪

    公开(公告)号:US20120162642A1

    公开(公告)日:2012-06-28

    申请号:US13221899

    申请日:2011-08-31

    Abstract: A spectrometer is provided. In one implementation, for example, a spectrometer comprises an excitation source, a focusing lens, a movable minor, and an actuator assembly. The focusing lens is adapted to focus an incident beam from the excitation source. The actuator assembly is adapted to control the movable mirror to move a focused incident beam across a surface of the sample.

    Abstract translation: 提供光谱仪。 在一个实施方案中,例如,光谱仪包括激发源,聚焦透镜,可移动次要器件和致动器组件。 聚焦透镜适于聚焦来自激发源的入射光束。 致动器组件适于控制可移动镜以将聚焦的入射光束移动穿过样品的表面。

    SPECTROSCOPE
    13.
    发明申请

    公开(公告)号:US20110058166A1

    公开(公告)日:2011-03-10

    申请号:US12667753

    申请日:2008-07-30

    Abstract: The present invention provides a small spectroscope that has a short response time. A spectroscope according to one embodiment of the present invention includes: a beam deflector that includes an electro-optic crystal, having an electro-optic effect, and paired electrodes used to apply an electric field inside the electro-optic crystal; spectroscopic means for dispersing light output by the beam deflector; and wavelength selection means for selecting light having an arbitrary wavelength from the light dispersed and output by the spectroscopic means.

    Abstract translation: 本发明提供一种响应时间短的小型分光镜。 根据本发明的一个实施例的分光镜包括:光束偏转器,其包括具有电光效应的电光晶体,以及用于在电光晶体内施加电场的成对电极; 分光装置,用于分散由光束偏转器输出的光; 以及波长选择装置,用于从由分光装置分散和输出的光中选择具有任意波长的光。

    HIGH-RESOLUTION SPECTRALLY ADJUSTABLE FILTER
    14.
    发明申请
    HIGH-RESOLUTION SPECTRALLY ADJUSTABLE FILTER 有权
    高分辨率光谱可调滤波器

    公开(公告)号:US20090303562A1

    公开(公告)日:2009-12-10

    申请号:US12135354

    申请日:2008-06-09

    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。

    Optical spectrum analyzer
    15.
    发明申请
    Optical spectrum analyzer 有权
    光谱分析仪

    公开(公告)号:US20040246477A1

    公开(公告)日:2004-12-09

    申请号:US10800320

    申请日:2004-03-11

    Abstract: An optical spectrum analyzer (OSA) 10 sequentially or selectively samples (or filters) a spectral band(s) 11 of light from a broadband optical input signal 12 and measures predetermined optical parameters of the optical signal (e.g., spectral profile) of the input light 12. The OSA 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates or spreads spatially the collimated input light, and reflects the dispersed light onto the mirror 22. A null/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the null/4 plate 26 to the diffraction grating 20, which reflects the light back through the collimating lens 18. The lens 18 focuses spectral bands of light (null1-nullN) at different focal points in space. One of the spectral bands 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each spectral band 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.

    Abstract translation: 光谱分析仪(OSA)10顺序地或选择性地从宽带光输入信号12采样(或滤波)光谱带11,并且测量输入的光信号的光学参数(例如,光谱分布) OSA 10是自由空间光学装置,其包括准直器组件15,衍射光栅20和反射镜22.发射尾纤通过准直器组件15将信号发射到自由空间中,并将其输入到衍射光栅20上 ,其在空间上分离或扩展准直的输入光,并将分散的光反射到反射镜22上.λ/ 4板26设置在反射镜22和衍射光栅20之间。反射镜将分离的光反射回λ/ 4板26连接到衍射光栅20,其通过准直透镜18反射光。透镜18将光(λ1-λN)的光谱带聚焦在空间中的不同焦点处。 光谱带11中的一个聚焦在接收引线28上,接收引线28然后传播到光电检测器30.枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22,以顺序地或选择性地将每个光谱带11聚焦到 接收尾纤28.位置传感器42检测衍射光栅24或反射镜的位移。

    Rapid-scanning monochromator with moving intermediate slit
    16.
    发明授权
    Rapid-scanning monochromator with moving intermediate slit 失效
    具有移动中间狭缝的快速扫描单色仪

    公开(公告)号:US5285254A

    公开(公告)日:1994-02-08

    申请号:US858899

    申请日:1992-03-27

    Inventor: Richard J. De Sa

    Abstract: The present invention is a scanning monochromator for producing a light beam which rapidly and repetitively varies in wavelength. The device is a subtractive double monochromator in which an intermediate slit is moved to effect wavelength scanning; the intermediate slit fitted in a rotating disk positioned at the intermediate focal plane of the monochromator. Two forms of the device are disclosed.

    Abstract translation: 本发明是用于产生在波长上快速且重复变化的光束的扫描单色仪。 该装置是一种减色双色器,其中中间狭缝移动以实现波长扫描; 中间狭缝装配在位于单色仪的中间焦平面处的旋转盘中。 公开了两种形式的装置。

    Optical waveguide spectrum analyzer and method
    17.
    发明授权
    Optical waveguide spectrum analyzer and method 失效
    光波导频谱分析仪及方法

    公开(公告)号:US4664522A

    公开(公告)日:1987-05-12

    申请号:US644325

    申请日:1984-08-24

    Inventor: David A. LeFebre

    CPC classification number: G01J3/28 G01J2003/062 G01J2003/064 G01J2003/2866

    Abstract: System and method for analyzing spectral data from an optical fiber waveguide. Light from the waveguide is directed to a diffraction grating which separates the light into its spectral components and directs these components toward a light responsive detector. The grating is rotated to cause spectral components of different wavelengths to sweep across the detector, and a sensor provides a signal corresponding to the angular position of the grating. A table of calibration data is generated by introducing monochromatic light of known wavelength into the waveguide, positioning the grating to cause the light at two known points in the spectrum of the monochromatic light to impinge upon the detector, and utilizing the wavelength of the monochromatic light and the values of the sensor signal at the two known points to define the relationship between the sensor signal and the detected wavelength for a plurality of grating positions. The calibaration data and the sensor signal are utilized to determine the wavelength of light peaks produced by a sample, and they are also utilized to generate a control signal for positioning the grating very accurately to detect light of a given wavelength. In one disclosed embodiment, two detectors having different spectral responses are employed, and light in different portions of the spectrum is detected by respective ones of the detectors.

    Abstract translation: 用于分析来自光纤波导的光谱数据的系统和方法。 来自波导的光被引导到衍射光栅,其将光分离成其光谱分量并将这些分量指向光响应检测器。 旋转光栅以使不同波长的光谱分量扫过检测器,并且传感器提供对应于光栅的角位置的信号。 通过将已知波长的单色光引入到波导中来产生校准数据表,定位光栅以使单色光谱中的两个已知点处的光照射到检测器上,并利用单色光的波长 以及两个已知点处的传感器信号的值,以限定多个光栅位置的传感器信号和检测到的波长之间的关系。 使用校准数据和传感器信号来确定由样品产生的光峰的波长,并且它们还用于产生用于非常精确地定位光栅的控制信号,以检测给定波长的光。 在一个公开的实施例中,采用具有不同光谱响应的两个检测器,并且通过相应的检测器检测光谱的不同部分中的光。

    System and method for non-invasive measurement of analytes in vivo

    公开(公告)号:US11965781B2

    公开(公告)日:2024-04-23

    申请号:US18312730

    申请日:2023-05-05

    Abstract: A system for non-invasively interrogating an in vivo sample for measurement of analytes comprises a pulse sensor coupled to the in vivo sample for detect a blood pulse of the sample and for generating a corresponding pulse signal, a laser generator for generating a laser radiation having a wavelength, power and diameter, the laser radiation being directed toward the sample to elicit Raman signals, a laser controller adapted to activate the laser generator, a spectrometer situated to receive the Raman signals and to generate analyte spectral data; and a computing device coupled to the pulse sensor, laser controller and spectrometer which is adapted to correlate the spectral data with the pulse signal based on timing data received from the laser controller in order to isolate spectral components from analytes within the blood of the sample from spectral components from analytes arising from non-blood components of the sample.

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