MULTICHANNEL ULTRA-SENSITIVE OPTICAL SPECTROSCOPIC DETECTION

    公开(公告)号:US20180266884A1

    公开(公告)日:2018-09-20

    申请号:US15761488

    申请日:2016-11-09

    Inventor: Zhi Xu

    Abstract: Increased sensitivity of spectrometers through reducing noise in independent voltage signals via a differential voltage analyzer utilizing a reference wavelength from a wavelength region in which the optical absorption of the sample is negligible. In an embodiment, a grating permits selection of a reference wavelength. In another embodiment, filters permit selection of a reference wavelength. In yet another embodiment, both a grating and a filter permit selection of a reference wavelength. In an aspect, the differential voltage analyzer reduces noise by minimizing a differential voltage between the independent voltage signals and the reference voltage signal by adjusting the value of a cancellation coefficient.

    IN-SITU SPECTRAL PROCESS MONITORING
    76.
    发明申请
    IN-SITU SPECTRAL PROCESS MONITORING 有权
    现场光谱过程监控

    公开(公告)号:US20170038305A1

    公开(公告)日:2017-02-09

    申请号:US14819179

    申请日:2015-08-05

    Abstract: Increasing the precision of process monitoring may be improved if the sensors take the form of travelling probes riding along with the flowing materials in the manufacturing process rather than sample only when the process moves passed the sensors fixed location. The probe includes an outer housing hermetically sealed from the flowing materials, and a light source for transmitting light through a window in the housing onto the flowing materials. A spatially variable optical filter (SVF) captures light returning from the flowing materials, and separates the captured light into a spectrum of constituent wavelength signals for transmission to a detector array, which provides a power reading for each constituent wavelength signal.

    Abstract translation: 如果传感器在制造过程中采用与流动材料一起骑行的形式,而不是仅在过程移动通过传感器固定位置时采样,则可提高过程监控的精度。 探头包括与流动材料密封的外壳体,以及用于将光通过壳体中的窗口传输到流动材料上的光源。 空间可变滤光器(SVF)捕获从流动材料返回的光,并将捕获的光分离成一组波长信号,以传输到检测器阵列,该检测器阵列为每个构成波长信号提供功率读数。

    Spectral Image Acquiring Device And Spectral Image Acquiring Method
    78.
    发明申请
    Spectral Image Acquiring Device And Spectral Image Acquiring Method 审中-公开
    光谱图像获取装置和光谱图像采集方法

    公开(公告)号:US20140354802A1

    公开(公告)日:2014-12-04

    申请号:US14287679

    申请日:2014-05-27

    Abstract: A spectral image acquiring device comprises an objective lens, a field aperture member for limiting a size of an image passing through the objective lens and focusing, a wavelength selecting member arranged on an optical axis of the objective lens, having two or more wavelength selecting surfaces and having different wavelength selection characteristics for each of the wavelength selecting surfaces, a deflecting member for deflecting partial luminous fluxes passing through the wavelength selecting surface, an image pickup element arranged on the optical axis of the objective lens, and an image forming lens for focusing the partial luminous fluxes deflected by the deflecting member on the image pickup element for each of the partial luminous fluxes.

    Abstract translation: 一种光谱图像获取装置,包括物镜,用于限制通过物镜的图像的尺寸并进行聚焦的场光圈构件,布置在物镜的光轴上的波长选择构件,具有两个或更多个波长选择表面 并且对于每个波长选择表面具有不同的波长选择特性,用于偏转通过波长选择表面的部分光通量的偏转构件,布置在物镜的光轴上的图像拾取元件和用于聚焦的图像形成透镜 对于每个部分光束,由偏转构件偏转在图像拾取元件上的部分光通量。

    Optical channel analyzer with variable filter
    79.
    发明授权
    Optical channel analyzer with variable filter 失效
    带可变滤波器的光通道分析仪

    公开(公告)号:US07826055B2

    公开(公告)日:2010-11-02

    申请号:US11716238

    申请日:2007-03-09

    CPC classification number: G01J3/32 G01J2003/1217 G01J2003/1221 G01J2003/123

    Abstract: An optical analyzer (14) for performing spectral analysis on an optical beam (18) includes an optical filter (28), a mover (30), an optical launcher (36), and an optical receiver (38). The optical filter (28) includes a filter area (46) that is a narrow band pass type filter having multiple alternative center bandwidths that are distributed along the filter area (46). The mover (30) moves the optical filter (28). The first optical launcher (36) directs the optical beam (18) at the filter area (46) so that the optical beam (18) is near normal incidence to the filter area (46). The optical analyzer (14) can be used to simultaneously monitor multiple optical signals. Additionally, the optical analyzer (14) can include a beam redirector (40) that causes the optical beam (18) to make two passes through the optical filter (28).

    Abstract translation: 用于在光束(18)上执行光谱分析的光学分析器(14)包括滤光器(28),移动器(30),光学发射器(36)和光学接收器(38)。 滤光器(28)包括滤光器区域(46),该滤光器区域是具有沿滤光器区域(46)分布的多个替代中心带宽的窄带通滤光器。 移动器(30)移动滤光器(28)。 第一光学发射器(36)将光束(18)引导到过滤器区域(46),使得光束(18)接近法向入射到过滤器区域(46)。 光学分析仪(14)可用于同时监测多个光信号。 另外,光学分析器(14)可以包括使光束(18)进行两次通过光学滤光器(28)的光束重定向器(40)。

    HIGH-SPEED, RUGGED, TIME-RESOLVED, RAMAN SPECTROMETER FOR SENSING MULTIPLE COMPONENTS OF A SAMPLE AND FOR DIAGNOSTICS OF PATHOLOGICAL SKIN CONDITIONS SUCH AS CANCER
    80.
    发明申请
    HIGH-SPEED, RUGGED, TIME-RESOLVED, RAMAN SPECTROMETER FOR SENSING MULTIPLE COMPONENTS OF A SAMPLE AND FOR DIAGNOSTICS OF PATHOLOGICAL SKIN CONDITIONS SUCH AS CANCER 有权
    用于感应样品的多个组分和用于诊断病理学皮肤病症如癌症的高分辨率,有声,时间分辨率的拉曼光谱仪

    公开(公告)号:US20100027002A1

    公开(公告)日:2010-02-04

    申请号:US12551404

    申请日:2009-08-31

    Applicant: Ricardo CLAPS

    Inventor: Ricardo CLAPS

    Abstract: A new architecture for implementing a time-resolved Raman spectrometer is 2-3 orders of magnitude faster than current systems. In one embodiment, the invention employs a rotating optical switch to time multiplex an input signal through multiple band-pass filters and into a single optical detector which is electrically activated only when the filtered input light pulse is about to impact it.Time-multiplexing the input signal through multiple optical filters and time-sequencing the optical detector enables the device to detect and analyze 2-3 orders of magnitude faster than current designs. In one embodiment, the system may be employed for the diagnostics of a pathological condition of skin tissue in patients, such as malignant melanoma or other types of skin cancers and abnormal conditions.

    Abstract translation: 实现时间分辨拉曼光谱仪的新架构比现有系统快2-3个数量级。 在一个实施例中,本发明采用旋转光开关,通过多个带通滤波器对输入信号进行时间复用,并将其转换成仅在滤波后的输入光脉冲即将影响时才被电激活的单个光检测器。 通过多个光学滤波器对输入信号进行时分复用,并对光学检测器进行时间排序,使器件能够比目前的设计更快地检测和分析2-3个数量级。 在一个实施方案中,该系统可用于诊断患者皮肤组织的病理状况,例如恶性黑素瘤或其他类型的皮肤癌症和异常状况。

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