Flat flow cell, manufacturing method of the same and measuring method

    公开(公告)号:JP2004053345A

    公开(公告)日:2004-02-19

    申请号:JP2002209396

    申请日:2002-07-18

    CPC classification number: G01N21/05 G01N2021/0346 G01N2201/0642

    Abstract: PROBLEM TO BE SOLVED: To obtain sufficient detection sensitivity for a minute quantity of a sample and deal with miniaturization of an apparatus in liquid chromatograph.
    SOLUTION: A chrome film 2 is formed on a surface of quartz glass 1. A groove as a flow path 3 is formed on the surface of the quartz glass 1 by photo-etching. The flow path 3 has a spiral shape so as to elongate a length of the flow path in a certain area. The quartz glass is finished as a mirror and welded as a lid, and a flow cell is formed. A region other than the flow path 3 is shielded by the chrome film 2. A light is transmitted through the flow path 3 only. The radiated light is radiated perpendicular to the flow path 3. A minute quantity of the sample receives the light in the certain area and can be measured, and the apparatus can be miniaturized.
    COPYRIGHT: (C)2004,JPO

    FIRE DETECTION APPARATUS
    132.
    发明公开

    公开(公告)号:US20230417665A1

    公开(公告)日:2023-12-28

    申请号:US18243958

    申请日:2023-09-08

    CPC classification number: G01N21/53 G01N2201/0642

    Abstract: Provided is a sensor 100 for detecting a fire in a monitoring area, including a detection space into which a detection target caused by the fire flows, a light emitting portion 71 configured to emit emission light for detecting the detection target into the detection space, a light receiving portion 72 configured to receive scattered light generated by the emission light scattered by the detection target inside the detection space, an ambient light processing portion configured to prevent ambient light from entering the detection space, and a disturbance light processing portion configured to process disturbance light other than the scattered light, the disturbance light being generated inside the detection space due to the emission light, in which the ambient light processing portion and the disturbance light processing portion are elements different from each other, the ambient light processing portion is provided outside the detection space, and the disturbance light processing portion is provided inside the detection space.

    REFLECTED LIGHT DETECTING DEVICE AND REFLECTED LIGHT DETECTING METHOD

    公开(公告)号:US20170336263A1

    公开(公告)日:2017-11-23

    申请号:US15597544

    申请日:2017-05-17

    Abstract: Reflected light detecting device and method with surface reflected light components collectively be extracted/removed when detecting reflected light arising in casting light onto target-object range having non-planar surface. The device includes: a first illuminating device causing first-measurement light in predetermined polarization direction to enter target-object first region from first direction; polarization optical system position part of first-surface reflected light enters the polarization optical system, the first-surface reflected light being the first-measurement in the first region surface; a second illuminating device causing second-measurement light in the same first-measurement light polarization direction to enter second region from second direction, the second region being on the target-object surface, different from the first region; adjusting direction of the second-measurement light optical axis so part of second-surface reflected light enters the polarization optical system, the second-surface reflected light being the second-measurement in second region surface; and detecting light having passed through the polarization optical system.

    OPTICAL SENSING MODULE
    137.
    发明申请

    公开(公告)号:US20170322157A1

    公开(公告)日:2017-11-09

    申请号:US15660961

    申请日:2017-07-27

    Abstract: An optical sensing module is configured to detect a characteristic of a sample. The optical sensing module includes a light source, a light guide plate, a first cladding layer, a light converging layer, a filter layer, and a plurality of sensors. The light source is configured to provide an exciting beam. Positions of the sensors correspond to positions of the holes. After the exciting beam enters the light guide plate, at least one portion of the exciting beam is transmitted to the sample through a portion of the surface of the light guide plate exposed by the holes, the sample is excited by the exciting beam to emit a signal beam, and the signal beam passes through the light converging layer and the filter layer in an order and travels to the sensors. Another optical sensing module is also provided.

    ASSEMBLY FOR ATTENUATING IMPINGING LIGHT OF A BEAM OF RADIATION

    公开(公告)号:US20170153177A1

    公开(公告)日:2017-06-01

    申请号:US15317194

    申请日:2015-03-25

    Applicant: AMRONA AG

    Inventor: Andreas Siemens

    Abstract: An assembly (100) for attenuating the impinging light of a beam of radiation of finite expansion with the objective of realizing reliable attenuation particularly of directly impinging light comprises a light source (10) for producing a beam of unpolarized light, preferably unpolarized monochromatic light, a useful light region (50) through which the unpolarized light passes and preferably passes through in a straight line from the light source (10) as well as an absorption device (30) arranged downstream of the useful light region (50) and preferably downstream in the direction of the direct beam radiation for at least partly absorbing impinging light, wherein the absorption device (30) comprises at least one polarization device (31, 32) arranged in the direction of the light beam.

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