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    Phase-locked timing system for a spectrophotometer
    21.
    发明授权
    Phase-locked timing system for a spectrophotometer 失效
    分光光度计的锁相计时系统

    公开(公告)号：US4644485A

    公开(公告)日：1987-02-17

    申请号：US651196

    申请日：1984-09-14

    Applicant: Alan C. Ferber ,  Morteza M. Chamran, deceased

    Inventor： Alan C. Ferber ,  Morteza M. Chamran, deceased

    IPC: G01J1/36 ,  G02B26/04 ,  G01J3/433 ,  G01R23/00

    CPC classification number: G01J1/36 ,  G02B26/04

    Abstract: A timing system for a spectrophotometer having a line driven chopper including a rotating disc with alternate open and opaque segments, index apertures in the disc spaced at invariant angular relationship to one of the open segments for providing indexing pulses having fixed time relationship to the light segments, and a programmable microcomputer assembly for generating a string of timing pulses for timing spectrophotometer operations and adjusting the rate of the timing pulses to provide a fixed number between indexing pulses in fixed phase relationship thereto.

    Abstract translation: 一种用于分光光度计的定时系统，其具有线驱动的斩波器，其包括具有交替的开放和不透明段的旋转盘，所述盘中的折射孔与所述开放段之一间隔开不变的角度关系，以提供具有与所述光段的固定时间关系的分度脉冲 以及可编程微计算机组件，用于产生用于定时分光光度计操作的定时脉冲串并且调整定时脉冲的速率以在与其固定相位关系的指数脉冲之间提供固定数量。

    Fluorescence intensity compensation method and device
    22.
    发明授权
    Fluorescence intensity compensation method and device 失效
    荧光强度补偿方法及装置

    公开(公告)号：US4622468A

    公开(公告)日：1986-11-11

    申请号：US754659

    申请日：1985-07-15

    Applicant: Andrew Stefanski ,  Alfred H. Sturtevant ,  Michael G. Konicek ,  Peter E. Lobban

    Inventor： Andrew Stefanski ,  Alfred H. Sturtevant ,  Michael G. Konicek ,  Peter E. Lobban

    IPC: G01J1/36 ,  G01N21/64

    CPC classification number: G01N21/64 ,  G01J1/36 ,  G01N2201/127 ,  G01N2201/12753

    Abstract: Variations in the intensity of a light source and the sensitivity of a fluorescence detector photo-multiplier tube are simultaneously compensated by measuring the intensity (I.sub.LS1) of the light source at the sample excitation frequency with a silicon detector, measuring the intensity (I.sub.LS2) of the light source at the emission frequency with another silicon detector, measuring with the photo-multiplier detector the intensity (I.sub.S) of the sample's fluorescence and the intensity (I.sub.LS3) of the light source at the emission frequency of the sample and then calculating a value F as representative of the sample's fluorescence according to the formula: ##EQU1##

    Abstract translation: 通过用硅检测器测量样品激发频率下的光源的强度（ILS1），同时补偿光源强度的变化和荧光检测器光电倍增管的灵敏度，测量光源的强度（ILS2） 用另一硅检测器的发射频率的光源，用光电倍增管检测器测量样品的荧光强度（IS）和光源在样品发射频率下的强度（ILS3），然后计算值 F作为样品荧光的代表，根据以下公式：

    Detector for use in optical measuring instruments
    23.
    发明授权
    Detector for use in optical measuring instruments 失效
    用于光学测量仪器的探测器

    公开(公告)号：US4444499A

    公开(公告)日：1984-04-24

    申请号：US361144

    申请日：1982-03-24

    Applicant: Osamu Akiyama ,  Tetsuo Ichikawa

    Inventor： Osamu Akiyama ,  Tetsuo Ichikawa

    IPC: G01N21/01 ,  G01J1/02 ,  G01J1/04 ,  G01J1/36 ,  G02B27/10 ,  H01L31/0232 ,  G01J3/42

    CPC classification number: G01J1/36

    Abstract: A detector for use in optical measuring instruments such as a double-beam spectrophotometer, comprising a photoelectric element having a photosensitive surface and a beam mixer disposed adjacent the photosensitive surface for causing each of two alternate light beams to be projected evenly and uniformly onto the photosensitive surface of the photoelectric element thereby to eliminate errors which would otherwise be caused in the result of measurement due to local difference in sensitivity of the photosensitive surface of the photoelectric element. The beam mixer comprises a symmetrical pair of light diffusing plates so arranged as to form a roof-shaped configuration and a tublar body having one end opening closed by the pair of light diffusing plates and the opposite end opening closed by the photosensitive surface of the photoelectric element.

    Abstract translation: 一种用于诸如双光束分光光度计的光学测量仪器的检测器，包括具有感光表面的光电元件和邻近感光表面设置的光束混合器，用于使两个交替光束中的每一个均匀均匀地投射到感光体上 表面，从而消除由于光电元件的感光表面的灵敏度的局部差异而在测量结果中会引起的误差。 光束混合器包括一对对称的光散射板，其被布置成形成屋顶形状，并且具有一对端开口由一对光扩散板封闭的相对端开口和由光电面的感光表面封闭的相对端开口 元件。

    Tuning fork light modulator
    26.
    发明授权
    Tuning fork light modulator 失效
    调光灯调光器

    公开(公告)号：US3632192A

    公开(公告)日：1972-01-04

    申请号：US3632192D

    申请日：1969-07-08

    Applicant: PHILAMON INC

    Inventor： GRIB BORIS F

    IPC: G01J1/36 ,  G04C3/10 ,  H02K33/02 ,  G02F1/30

    CPC classification number: G01J1/36 ,  G04C3/102 ,  H02K33/02

    Abstract: There is disclosed a light modulating structure including an open-ended housing within which an electromagnetically driven tuning fork structure is supported. A source of light is located between the tines of the tuning fork. Apertured shutter members are secured to the ends of said tines intermediate the light source and the open end of said housing, relative movement of the shutter members causing variations in light intensity emitted by the light modulating structure. The tuning fork is of composite construction and is manufactured by a method which involves shaping at least two tuning fork tines to a desired thickness in a single machining operation before the two tines are separated and joined together symmetrically to form a composite tuning fork.

    Abstract translation: 公开了一种光调制结构，其包括开放式壳体，其中支撑有电磁驱动的音叉结构。 光源位于音叉的齿之间。 开口的挡板部件被固定到所述光源的中心位于所述光源和所述壳体的开口端的端部处，所述快门部件的相对运动导致由光调制结构发射的光强度的变化。 音叉具有复合结构，并且通过一种方法制造，该方法包括在两个齿分离并对称地连接在一起之前在单个加工操作中将至少两个音叉形成至所需厚度以形成复合音叉。

    Synchronizing light chopper comprising cylindrical disc with plurality of channels
    27.
    发明授权
    Synchronizing light chopper comprising cylindrical disc with plurality of channels 失效
    同步通道的包括圆形盘的光斩波器

    公开(公告)号：US3562541A

    公开(公告)日：1971-02-09

    申请号：US3562541D

    申请日：1968-06-28

    Applicant: NEOTEC CORP

    Inventor： SCHROEDER KARL F

    IPC: G01J1/36 ,  G01D5/36 ,  H04N3/02

    CPC classification number: G01J1/36

    Abstract: A synchronizing light chopper which is rotatable and has a mechanical member in the form of a cylinder with a multiplicity of slots cut therethrough. One of the slots is wider than the others and permits a longer light pulse therein which is used to reset the flip-flop to its initial zero state. Thus, synchronization is ensured in spite of spurious, unwanted trigger pulses.

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