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    HETERODYNE DETECTION SYSTEM AND METHOD
    41.
    发明申请
    HETERODYNE DETECTION SYSTEM AND METHOD 有权
    异位检测系统及方法

    公开(公告)号：US20150014543A1

    公开(公告)日：2015-01-15

    申请号：US14380685

    申请日：2013-02-22

    Applicant: ITI SCOTLAND LIMITED

    Inventor： Damien Weidmann

    IPC: G01N21/49 ,  G01N33/00

    CPC classification number: G01N21/49 ,  B82Y20/00 ,  G01N33/0027 ,  G01N2201/06113 ,  G01N2201/0636 ,  G01N2201/066 ,  G01S7/4911 ,  G01S17/32 ,  G01S17/95 ,  H01L2924/0002 ,  H01S5/02264 ,  H01S5/02415 ,  H01S5/02469 ,  H01S5/3401 ,  Y02A90/19 ,  H01L2924/00

    Abstract: An active heterodyne detection system comprises a continuously tuneable laser source (1) emitting infra-red radiation, means (8) to split the infra-red radiation into a first part and a second part, means (4) to provide a frequency shift between the first part and the second part, means (8, 9) to direct the first part of the infra-red radiation to a target (2), means (4) to provide the second part of the infra-red radiation as a local oscillator, means (8, 9) to collect a scattered component of the first part of the infra-red light from the target (2), and means (5) to mix the scattered component and the local oscillator and route them to a detector (3) for heterodyne detection over a continuous spectral range. A method of active heterodyne detection over a continuous spectral range is also disclosed.

    Abstract translation: 主动外差检测系统包括发射红外辐射的可连续调谐的激光源（1），用于将红外辐射分裂成第一部分和第二部分的装置（8），用于在第二部分和第二部分之间提供频移 第一部分和第二部分是将红外辐射的第一部分引导到目标（2）的装置（8,9），装置（4）将红外辐射的第二部分提供为局部 振荡器，用于收集来自目标（2）的红外光的第一部分的散射分量的装置（8,9），以及用于将散射分量和本地振荡器混合并将其路由到检测器的装置（5） （3）用于连续光谱范围的外差检测。 还公开了在连续光谱范围内的主动外差检测方法。

    Method of and a device for measuring optical absorption characteristics of a sample
    43.
    发明授权
    Method of and a device for measuring optical absorption characteristics of a sample 失效
    用于测量样品的光吸收特性的方法和装置

    公开(公告)号：US07298485B2

    公开(公告)日：2007-11-20

    申请号：US11200086

    申请日：2005-08-10

    Applicant: Hiromi Takahashi

    Inventor： Hiromi Takahashi

    IPC: G01N21/00

    CPC classification number: G01N21/552 ,  G01N2201/066 ,  G01N2201/08

    Abstract: The device for measuring an optical absorption characteristic of a sample according to the present invention comprising a light source, a optical wave-guide having light input surface(s) and light output surface(s) that are opposite to each other, and a light reflecting surface on which a sample to be measured is disposed, through which the light passes and is reflected by a total reflection on the sample, one or more light transmitting means arranged between the light output surface of the optical wave-guide and the light input surface of the optical wave-guide so that the light is again entered into the optical wave-guide, and a processing device which receives the light re-exited from the optical wave-guide through the output surface and detects the optical absorption characteristics of the sample on the basis of the light received, whereby the light which passes through the optical wave-guide is conducted to the optical wave-guide again, the light is again entered the optical wave-guide, and the light is again reflected on the sample (FIG. 1).

    Abstract translation: 根据本发明的用于测量样品的光吸收特性的装置，包括光源，具有彼此相对的光输入表面和光输出表面的光波导，以及光 配置有被测定样品的反射面，光通过该反射面，被样品的全反射反射，配置在光波导的光输出面和光输入面之间的一个或多个光传输单元 表面，使得光再次进入光波导，以及处理装置，其接收从光波导通过输出表面重新退出的光，并检测光波导的光吸收特性 基于受光的样品，通过光波导的光再次传导到光波导，光再次进入光波导， 引导，并且光再次反映在样品上（图1）。 1）。

    Apparatus and method for optically measuring concentrations of components
    44.
    发明授权
    Apparatus and method for optically measuring concentrations of components 失效
    用于光学测量组分浓度的装置和方法

    公开(公告)号：US5602647A

    公开(公告)日：1997-02-11

    申请号：US562785

    申请日：1995-11-27

    Applicant: Kexin Xu ,  Yutaka Yamasaki ,  Harumi Uenoyama ,  Takeshi Sakura

    Inventor： Kexin Xu ,  Yutaka Yamasaki ,  Harumi Uenoyama ,  Takeshi Sakura

    IPC: G01N21/27 ,  G01J3/42 ,  G01N21/03 ,  G01N21/31 ,  G01N21/39 ,  G01N21/59 ,  G01N21/00

    CPC classification number: G01N21/0303 ,  G01N21/31 ,  G01J3/42 ,  G01N2021/3129 ,  G01N21/39 ,  G01N21/59 ,  G01N2201/066 ,  G01N2201/0668

    Abstract: An apparatus and method for optically measuring concentrations of components allow enhancement in measurement accuracy of concentration. The apparatus includes a cell, a light irradiator, a photodetector, and an arithmetic unit. The cell presents different optical path lengths at different locations and is to contain a sample therein. The light irradiator, which includes a variable-wavelength laser generator and a measuring system composed of convex lenses, outputs a collimated, enlarged laser beam, and makes the laser beam incident upon the cell. The photodetector comprises a multiplicity of photodetectors arranged in parallel to the surface of the cell, so that it can detect intensity of rays of transmitted light that have traveled over different optical path lengths at positions of an equal distance from the cell. The arithmetic unit, receiving a signal from the individual photodetectors, calculates concentrations of components in the sample based on optimum optical path lengths for different wavelengths and values of transmitted light at positions of the optimum optical path lengths, and further outputs calculation results.

    Abstract translation: 用于光学测量组分浓度的装置和方法允许增强浓度的测量精度。 该装置包括单元，光照射器，光电检测器和运算单元。 细胞在不同位置呈现不同的光程长度，并且其中包含样品。 包括可变波长激光发生器和由凸透镜组成的测量系统的光照射器输出准直的，放大的激光束，并使激光束入射到电池上。 光电检测器包括与电池表面平行设置的多个光电检测器，使得其可以检测在距离电池相等距离的位置处已经在不同光程长度上行进的透射光的光强。 运算单元接收来自各个光电检测器的信号，根据最佳光程长度的不同波长的最佳光路长度和最佳光路长度位置处的透射光值，计算样品中的成分浓度，并进一步输出计算结果。

    Calibrating reflector device for an optical measuring system
    45.
    发明授权
    Calibrating reflector device for an optical measuring system 失效
    用于光学测量系统的校准反射器装置

    公开(公告)号：US5305744A

    公开(公告)日：1994-04-26

    申请号：US32862

    申请日：1993-03-17

    Applicant: Ulrich Pfeiffer ,  Reinhold Knoll

    Inventor： Ulrich Pfeiffer ,  Reinhold Knoll

    IPC: G01N21/01 ,  A61B1/00 ,  A61B5/00 ,  G01M11/00 ,  G01N21/47 ,  G01N21/55 ,  G01N21/77 ,  G02B5/02

    CPC classification number: G01N21/4785 ,  A61B5/1459 ,  A61B5/1495 ,  G01M11/30 ,  A61B2560/0233 ,  G01N21/7703 ,  G01N2201/066 ,  G01N2201/084

    Abstract: Calibrating reflector device to calibrate an optical measuring system having an optical fiber optics probe, for example, for measuring the oxygen saturation of blood. The calibrating reflector device comprises a housing that is open on one end, a reflecting device in the form of an opaque layer in which reflecting particles are embedded, as well as a positioning plug with a central bore, in which the fiber optics probe can be received with a certain frictional resistance. A transparent layer is disposed between the front end of fiber optics probe and the reflecting layer, on whose surface the front end of fiber optics probe can be arranged by the positioning plug.

    Abstract translation: 校准反射器装置来校准具有光纤光学探针的光学测量系统，例如用于测量血液的氧饱和度。 校准反射器装置包括在一端开口的壳体，其中嵌入反射颗粒的不透明层形式的反射装置以及具有中心孔的定位插塞，光纤探针可以 受到一定的摩擦阻力。 透明层设置在光纤探针的前端和反射层之间，光纤探针前端可由定位插头排列。

    Self-referencing remote optical probe
    46.
    发明授权
    Self-referencing remote optical probe 失效
    自参考远程光学探头

    公开(公告)号：US5039224A

    公开(公告)日：1991-08-13

    申请号：US478327

    申请日：1990-02-12

    Applicant: Patrick E. O'Rourke ,  William S. Prather ,  Ronald R. Livingston

    Inventor： Patrick E. O'Rourke ,  William S. Prather ,  Ronald R. Livingston

    IPC: G01N21/03

    CPC classification number: G01N21/0303 ,  G01N2021/0314 ,  G01N2021/036 ,  G01N2201/066

    Abstract: A probe for remote spectrometric measurements of fluid samples having a hollow probe body with a sliding reflective plug therein and a lens at one end, ports for admitting and expelling the fluid sample and a means for moving the reflector so that reference measurement can be made with the reflector in a first position near the lens and a sample measurement can be made with the reflector away from the lens and the fluid sample between the reflector and the lens. Comparison of the two measurements will yield the composition of the fluid sample. The probe is preferably used for remote measurements and light is carried to and from the probe via fiber optic cables.

    Abstract translation: 用于远程光谱测量的探针具有中空探针体，其中具有滑动反射塞并且其一端具有透镜，用于允许和排出流体样品的端口和用于移动反射器的装置使得可以进行参考测量 反射器在透镜附近的第一位置和样品测量可以使反射器远离透镜和反射器和透镜之间的流体样品。 两个测量的比较将产生流体样品的组成。 探针优选用于远程测量，并且光通过光纤电缆传送到探针和从探针传送到光纤。

    Compact gas sensor
    48.
    发明授权
    Compact gas sensor 有权

    公开(公告)号：US11921031B2

    公开(公告)日：2024-03-05

    申请号：US17594630

    申请日：2020-04-22

    Applicant: ELICHENS

    Inventor： Hélène Duprez

    IPC: G01N21/03 ,  G01N21/3504

    CPC classification number: G01N21/031 ,  G01N21/3504 ,  G01N2201/066

    Abstract: A gas sensor comprises an enclosure configured to receive a gas. The enclosure comprises a sidewall extending, around a transverse axis, between a first wall and a second wall. The sensor also comprises a light source configured to emit a light wave that propagates in the enclosure and forms, from the light source, a first light cone. A measuring photodetector is configured to detect the light wave emitted by the light source and propagated through the enclosure. The first wall and the second wall each comprise at least one reflective surface, forming a portion of an ellipsoid of revolution. Each reflective surface is associated with a rank n, n being an integer greater than or equal to 1.

    Dark Tracking, Hybrid Method, Conical Diffraction Microscopy and Dark Addressing
    49.
    发明公开
    Dark Tracking, Hybrid Method, Conical Diffraction Microscopy and Dark Addressing 审中-公开

    公开(公告)号：US20230168199A1

    公开(公告)日：2023-06-01

    申请号：US18102333

    申请日：2023-01-27

    Applicant: Bioaxial SAS

    Inventor： Gabriel Y. Sirat

    IPC: G01N21/64 ,  G02B21/36

    CPC classification number: G01N21/6458 ,  G02B21/365 ,  G01N2201/066

    Abstract: A super resolution technique, intended mainly for fluorescence microscopy, acquires the three-dimensional position of an emitter, through a hybrid method, including a number of steps.
    In a first step the two-dimensional position of an emitter is acquired, using a technique, named in this application as an Abbe’s loophole technique., In this technique a doughnut, or a combination of distributions, having a zero intensity at the combined center of the distributions, is projected onto the sample containing the emitter, under conditions wherein the doughnut null is moved towards the emitter to reach a position in which the emitter does not emit light.
    In a second step, an axial measurement is obtained using a 3D shaping method, characterized by the fact that the emitted light is shaped by an additional optical module creating a shape of the light emitted by the emitter, this shape being dependent of the axial position and means to retrieve the axial position from the shape.

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