Multichannel reflective optical medical sensor device

    公开(公告)号:US11576579B2

    公开(公告)日:2023-02-14

    申请号:US16004661

    申请日:2018-06-11

    Abstract: Embodiments herein relate to reflective optical medical sensor devices. In an embodiment, a reflective optical medical sensor device including a central optical detector and a plurality of light emitter units disposed around the central optical detector is provided. A plurality of peripheral optical detectors can be disposed to the outside of the plurality of light emitter units. Each of the plurality of peripheral optical detectors can form a channel pair with one of the plurality of light emitter units. The reflective optical medical sensor device can also include a controller in electrical communication with the central optical detector, the light emitter units, and the peripheral optical detectors. The controller can be configured to measure performance of channel pairs; select a particular channel pair; and measure a physiological parameter using the selected channel pair. Other embodiments are also included herein.

    Infra red spectrometer
    53.
    发明授权

    公开(公告)号:US11346774B2

    公开(公告)日:2022-05-31

    申请号:US16344183

    申请日:2017-10-27

    Inventor: Damien Weidmann

    Abstract: Methods and apparatus are disclosed for detecting one or more species in a sample, wherein laser probe light is frequency swept across at least one infra red absorption spectrum feature of each of the species. A path from the probe light source to a single detector element may be switched between at least one sample absorption cell or volume and one or more reference cells or volumes.

    Spectroscopic System and Method Therefor

    公开(公告)号:US20210369119A1

    公开(公告)日:2021-12-02

    申请号:US16949466

    申请日:2020-10-30

    Abstract: A spectroscopic system may include: a probe having a probe tip and an optical coupler, the optical coupler including an emitting fiber group and first and second receiving fiber groups, each fiber group having a first end and a second end, wherein the first ends of the fiber groups are formed into a bundle and optically exposed through the probe tip; a light source optically coupled to the second end of the emitting fiber group, the light source emitting light in at least a first waveband and a second waveband, the second waveband being different from the first waveband; a first spectrometer optically coupled to the second end of the first receiving fiber group and configured to process light in the first waveband; and a second spectrometer optically coupled to the second end of the second receiving fiber group and configured to process light in the second waveband.

    Diffuse reflectance infrared Fourier transform spectroscopy

    公开(公告)号:US10473584B2

    公开(公告)日:2019-11-12

    申请号:US15985032

    申请日:2018-05-21

    Abstract: Diffuse reflectance spectroscopy apparatus for use in analyzing a sample comprising a sample receiving location 2 for receiving a sample 3 for analysis; an illumination arrangement 4 for directing light towards a received sample; a detector 6 for detecting light reflected by a received sample; and collection optics 5 for directing light reflected by a received sample towards the detector. The illumination arrangement further comprises an interferometer 42 and a half beam block 45a, 45b which is disposed substantially at a focus in the optical path for blocking light which exits the interferometer, passes said focus, and is reflected from re-entering the interferometer. A half beam block 45a may be disposed in the optical path between the interferometer and the light source 41 for blocking light that exits the interferometer back towards the light source and is reflected by the light source from re-entering the interferometer and/or a half beam block 45b may be disposed in the optical path on the opposite side of the interferometer than the light source.

    Two-channeled measurement apparatus
    58.
    发明授权
    Two-channeled measurement apparatus 有权
    双通道测量装置

    公开(公告)号:US09128037B2

    公开(公告)日:2015-09-08

    申请号:US14293473

    申请日:2014-06-02

    Applicant: SICK AG

    Abstract: The invention relates to a measurement apparatus for the determination of gas concentrations. The apparatus comprises two spectral channels, wherein the channels are separated by a single chopper wheel. The chopper wheel has several functions. On the transmitting side, it brings the light of the two light sources on the same measuring path, on the receiving side it associates the light to the associated receiver; it has its chopper function to use the lock-in technique; and it opens the possibility to implement an easy zero point correction.

    Abstract translation: 本发明涉及一种用于确定气体浓度的测量装置。 该装置包括两个光谱通道,其中通道由单个切碎机轮分开。 斩波轮有几个功能。 在发射侧,它将两个光源的光引入相同的测量路径,在接收侧,它将光与相关的接收器相关联; 它具有切割功能,可以使用锁定技术; 并且打开了实现简单零点校正的可能性。

    Optical arrangement for tracking detector
    60.
    发明授权
    Optical arrangement for tracking detector 失效
    跟踪探测器的光学布置

    公开(公告)号:US08520308B2

    公开(公告)日:2013-08-27

    申请号:US13267825

    申请日:2011-10-06

    Applicant: John Gunderson

    Inventor: John Gunderson

    CPC classification number: G02B27/144 F41G7/226 F41G7/2293 G01S7/4816 G01S17/66

    Abstract: A system and method of reducing turbulence sensitivity in a laser spot detector. Embodiments may include using beam splitters, reflectors, and beam deviators. The reflectors may be trihedral reflectors and the beam deviators may be segmented wedge plates having predetermined physical angles and angle directions in each wedge segment designed to produce opposing blurs for each segment of the aperture. A predetermined blur introduced into each line of sight eliminates the need for de-focus, thereby mitigating effects such as centroid shift caused by turbulence or dirty/damaged sensor apertures.

    Abstract translation: 一种降低激光光斑检测器中湍流灵敏度的系统和方法。 实施例可以包括使用分束器,反射器和光束偏移器。 反射器可以是三面体反射器,并且光束偏移器可以是在每个楔形段中具有预定物理角度和角度方向的分段楔形板,其被设计成为孔的每个部分产生相反的模糊。 在每个视线中引入的预定模糊消除了对焦的需要,从而减轻诸如由湍流或脏/损坏的传感器孔引起的重心移动的影响。

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