PARTICLE DETECTORS
    72.
    发明申请
    PARTICLE DETECTORS 有权
    颗粒检测器

    公开(公告)号:US20120140231A1

    公开(公告)日:2012-06-07

    申请号:US13318309

    申请日:2010-05-03

    Abstract: A beam detector (10) including a light source (32), a receiver (34), and a target (36), acting in co-operation to detect particles in a monitored area (38). The target (36), reflects incident light (40), resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

    Abstract translation: 一种包括光源(32),接收器(34)和目标(36)的光束检测器(10),用于协调以检测被监视区域(38)中的颗粒。 目标(36)反射入射光(40),导致反射光(32)返回到接收器(34)。 接收器(34)是能够在其视场上的多个点处记录和报告光强度的接收器。 在优选形式中,检测器(10)发射第一波长带中的第一光束(3614) 在第二波长带中的第二光束(3618); 以及第三波长带中的第三光束(3616),其中所述第一和第二波长带基本相等并且与所述第三波长带不同。

    PARTICLE DETECTION
    74.
    发明申请
    PARTICLE DETECTION 有权
    颗粒检测

    公开(公告)号:US20110221889A1

    公开(公告)日:2011-09-15

    申请号:US12997155

    申请日:2009-06-10

    Abstract: A particle detection system including; at least one light source adapted to illuminate a volume being monitored at least two wavelengths; a receiver) having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.

    Abstract translation: 一种粒子检测系统,包括: 至少一个光源,适于照亮被监测至少两个波长的体积; 接收器),其具有视场并且适于在所述光已经穿过被监视的体积之后接收来自至少一个光源的光,并适于产生指示在视场内的区域中接收的光的强度的信号 收件人; 与所述接收机相关联的处理器,其适于处理由所述接收机产生的信号,以将在接收机的视场内的相应区域中接收到的至少两个波长的光相关联,并产生指示在两个波长处接收的光的相对电平的输出 。

    LED INSPECTION LAMP AND LED SPOTLIGHT
    76.
    发明申请
    LED INSPECTION LAMP AND LED SPOTLIGHT 有权
    LED检查灯和LED投光灯

    公开(公告)号:US20100008079A1

    公开(公告)日:2010-01-14

    申请号:US12503304

    申请日:2009-07-15

    Abstract: An LED inspection lamp has plurality of LED sources for emitting electromagnetic radiation at different peak wavelengths for causing visible fluorescence in different leak detection dyes. A lens is associated with each LED. Radiation passing through lenses is superimposed in target area at target distance. Another LED inspection lamp has plurality of LEDs emitting electromagnetic radiation at a peak wavelength. A lens adaptor has lens housing for attachment to LED inspection lamp with a single LED for causing visible fluorescence, and a lens. Substantially all of the radiation from the LED passes through the lens and is focused in a target area at a target distance from the lenses. LED spot lights have a similar configuration. The LEDs may produce white light from distinct LEDs or from white LEDs. The light may be a flashlight or fixed spot light.

    Abstract translation: LED检查灯具有多个LED源,用于发射不同峰值波长的电磁辐射,以在不同的泄漏检测染料中引起可见荧光。 镜头与每个LED相关联。 通过透镜的辐射以目标距离叠加在目标区域中。 另一个LED检查灯具有发射峰值波长的电磁辐射的多个LED。 镜头适配器具有透镜壳体,用于附接到具有用于引起可见荧光的单个LED的LED检查灯和透镜。 基本上来自LED的所有辐射通过透镜并聚焦在与透镜目标距离处的目标区域中。 LED射灯具有相似的配置。 LED可能产生来自不同LED或白色LED的白光。 灯可能是手电筒或固定点灯。

    Fluid detection system
    77.
    发明授权
    Fluid detection system 失效
    流体检测系统

    公开(公告)号:US5452076A

    公开(公告)日:1995-09-19

    申请号:US128601

    申请日:1993-09-29

    Abstract: The present invention relates to a fluid detection system which can be adapted for use in applications including liquid-level detection, pipeflow monitoring, and interstitial leakage in double-walled containers. The system operates on principles of optics and provides the capability of remotely differentiating between fluids having different refractive indices including liquids and vapors. The present detector uses a unique light pulsation technique which increases permissible operating ranges over existing optical detection systems.

    Abstract translation: 本发明涉及一种流体检测系统,其可适用于双层壁容器中的液位检测,管道流量监测和间隙泄漏等应用。 该系统基于光学原理运行,并提供远程区分具有不同折射率的流体(包括液体和蒸气)的能力。 本检测器使用独特的光脉冲技术,其增加了现有光学检测系统的允许工作范围。

    Apparatus for monitoring hematocrit levels of blood
    78.
    发明授权
    Apparatus for monitoring hematocrit levels of blood 失效
    用于监测血液血细胞比容水平的装置

    公开(公告)号:US5385539A

    公开(公告)日:1995-01-31

    申请号:US906926

    申请日:1992-06-30

    Inventor: David L. Maynard

    Abstract: An apparatus and method are provided for measuring the hematocrit level of blood. The presently preferred embodiment comprises a light emitting device which emits an amount of light into a blood sample. This light travels through the blood sample to two light detecting devices positioned relative to the light emitting device in a predetermined geometry such that light emitted from the light emitting device must travel farther to reach one of the light detecting devices than to reach the other, thereby forming a light path from the light emitting device to one light detecting device which is longer than the path from the light emitting device to the other light detecting device. According to the present invention, the amount of light detected by one of the light detecting devices is regulated so that the amount of light detected is constant. Thereafter, the amount of light detected by the unregulated light detecting device is a linear representation of the hematocrit of the blood in the blood sample. The hematocrit sensor may be used within a plasma separator apparatus wherein the hematocrit measurement regulates the operating parameters of the autotransfusion system to maintain the hematocrit of the blood within a predetermined range.

    Abstract translation: 提供了一种用于测量血液血细胞比容水平的装置和方法。 目前优选的实施方案包括将一定量的光发射到血液样品中的发光装置。 该光通过血液样本传播到相对于发光器件相对于预定几何形状定位的两个光检测装置,使得从发光装置发射的光必须更远地行进到达其中一个光检测装置而不是到达另一个,由此 形成从发光器件到比从从发光器件到另一光检测器件的路径长的光检测器件的光路。 根据本发明,调节由一个光检测装置检测的光量,使得检测到的光量是恒定的。 此后,由未调节的光检测装置检测的光量是血液样品中血液的血细胞比容的线性表示。 血细胞比容传感器可以在等离子体分离器装置中使用,其中血细胞比容测量调节自体输血系统的操作参数以将血液的血细胞比容维持在预定范围内。

    Instrument for measuring reflective properties of paper and other opaque
materials
    79.
    发明授权
    Instrument for measuring reflective properties of paper and other opaque materials 失效
    用于测量纸张和其他不透明材料的反射性能的仪器

    公开(公告)号:US5260584A

    公开(公告)日:1993-11-09

    申请号:US911501

    申请日:1992-07-10

    Abstract: A portable, hand held reflectometer which employs at least one blue light emitting diode for measuring the optical brightness of an opaque material, such as a stack or pad of paper is disclosed. A brightness measuring reflectometer which employs two blue light emitting diodes arranged so as to substantially reduce measured brightness variations caused by changing the orientation of the reflectometer relative to that of the fibers contained in a fibrous material such as paper whose brightness is to be measured is also disclosed. An ultraviolet light source such as a fluorescent lamp is also employed for measuring the brightness of paper or other materials which contain ultraviolet light excitable blue wavelength emitting substances. An electronic circuit for operating the reflectometer is also disclosed which employs a negative feedback circuit for maintaining the intensity of the ultraviolet light source at a relatively constant level.

    Abstract translation: 公开了一种便携式手持式反射计,其采用至少一个蓝色发光二极管来测量不透明材料(诸如纸堆或纸)的光学亮度。 使用两个蓝色发光二极管的亮度测量反射计,该蓝色发光二极管被布置成基本上减少由反射计相对于包含在诸如要测量其亮度的纸的纤维材料中的纤维的取向而引起的测量的亮度变化 披露 诸如荧光灯的紫外光源也用于测量含有紫外线可激发蓝色波长发射物质的纸张或其他材料的亮度。 还公开了一种用于操作反射计的电子电路,其采用负反馈电路以将紫外光源的强度保持在相对恒定的水平。

    Multisource device for photometric analysis and associated chromogens
    80.
    发明授权
    Multisource device for photometric analysis and associated chromogens 失效
    用于光学分析和相关色素的多媒体设备

    公开(公告)号:US5073029A

    公开(公告)日:1991-12-17

    申请号:US481450

    申请日:1990-02-16

    Abstract: An optoelectronic device is provided which permits rapid sequential measurement of the optical density of multiple samples. The device employs a plurality of light-emitting diodes (LEDs) as light sources and a plurality of photodiodes as light detectors. In a preferred embodiment, arrays of LEDs paired with photodiodes are adapted to measure the optical density of samples contained in multiwell plastic plates (microplates) conventionally used for immunoassays.

    Abstract translation: 提供了一种允许快速连续测量多个样品的光密度的光电子器件。 该装置使用多个发光二极管(LED)作为光源和多个光电二极管作为光检测器。 在优选实施例中,与光电二极管配对的LED阵列适于测量通常用于免疫测定的多孔塑料板(微孔板)中包含的样品的光密度。

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