• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a spectrophotometer operating at discrete wavelengths comprising means to emit variable, substantially monochromatic radiation for irradiating a sample (10) to be tested, a radiation detector (12) sensing the intensity of the radiation reflected or transmitted by the sample (10) and a signal processing unit connected to the radiation detector (12). The radiation emitting means comprises radiation sources (2) emitting substantially monochromatic radiation of different wavelengths, a holder (1) supporting the radiation sources (2) and an optical arrangement (5,6) for transmitting the radiation emitted by the radiation sources (2) successively towards the sample (10). The optical arrangement may comprise at least one mirror (5) supported rotatably with respect to the holder (1). The spectrophotometer is preferably provided with a control unit (3) to operate the radiation sources (2) corresponding to the angular position of said at least one mirror (5), thereby only that one of the radiation sources (2) is operating the radiation of which is just transmitted by the mirror (5).
    公开号:SU1333243A3
    申请号:SU833599706
    申请日:1983-06-06
    公开日:1987-08-23
    发明作者:Цабаффи Андраш；Хорват Лоранд；Каффка Карой；Надаи Бела
    申请人:Кезпонти Элелмисерипари Кутато Интезет (Инопредприятие)；
    IPC主号:
    专利说明:

    This invention relates to optical spectral instrumentation.
    The purpose of the invention is to simplify the design and improve accuracy.
    The drawing shows a diagram of the spectrophotometer.
    The spectrophotometer contains a light source 1, a holder 2, a control unit 3, an engine 4, a mirror 5, a collimator 6, a beam splitter 7, a focusing lens 8, a radiation detector 9, a sample holder 10, a second focusing lens t1, a second radiation detector 12, light filters 13, the first the amplifier 14, the second amplifier 15, the first analog-to-digital converter (ADC) 16, the second ADC 17, the processing unit 18, the control panel 19, the display unit 20, the additional radiation source 21, the tre. a collimator 22, an additional beam splitter 23, a third focusing lens 24, a third radiation detector 25, and a third amplifier 26.
    The spectrophotometer works as follows.
    The radiation from light sources 1 passes through a light filter 13 and is directed to collimator 6 by means of a mirror 5. The collimated radiation passes through a sample fixed in holder 10. A focusing lens 8 is used to collect radiation that has passed through the sample. The radiation detector 9 registers the radiation. The amplifier 14 amplifies the signal from the radiation detector 9. The signal is then converted by the first A / D converter 16 into digital form and transmitted to the processing unit 18, controlled by the control panel 19.
    The operation of the light sources 1, the engine 4, by which the mirror 5 is rotated, p A1 S 16 and 17 is controlled by the control unit 3. The control unit 3 also generates a signal to turn on the corresponding light source 1 and turn the mirror 5
    In order to determine the transmission characteristic of a sample, a portion of the radiation beam using a beam splitter 7 from - is led to a second radiation detector 12. The signal is amplified by amplifier 15 and converted into digital form by A / D converter 17. Processing unit 18 calculates the ratio of the signals incident and transmitted.
    walking through the sample. The ratio is displayed by block 20.
     To determine the position of the mirror,
    5, a beam from an additional source 21 of light falls on the mirror 5, is reflected from it at a normal angle in one of the positions of the mirror 5, and hits the third radiation detector 25. The signal of the detector 25 passes through the amplifier 26 and enters the control unit 3, informing it about the position of the mirror 5.
    The holder 2 may be in the form of a cone or ring. Instead of the mirror 5 and the collimator 6, a concave rotary mirror can be used. Dv- gatel 4 can be as continuous
    rotating and stepping. Mirror 5 can be rotated manually. A spectrophotometer can be used to measure reflections.
    5 Formula a
    rete n i
    权利要求:
    Claims (3)
    [1]
    1. A discrete-wavelength spectrophotometer containing light sources mounted in a holder optically coupled through light filters with a device for deflecting the radiation of light sources, a collimator, a sample holder, a focusing lens and a radiation detector, connected through an amplifier and analog-digital a converter with a processing unit, as well as a display unit connected to the processing unit, a control panel connected
    40 with a processing unit, and a control unit connected to radiation sources, a control panel, a processing unit, and an analog-to-digital converter, characterized in that
    45 in order to simplify the design and improve the measurement accuracy, the light sources are made in the form of LEDs emitting quasi-monochromatic radiation of different wavelengths or 50 grain diodes, the holder of the light sources has a cylindrical, conical or ring-shaped form, the radiation deflection device contains at least one baking alternately transmitting the radiation of the LEDs or laser diodes to the collimator mounted for rotation around an axis coinciding with the axis of the holder.
    [2]
    2. A spectrophotometer according to claim 1, in which, it is additionally equipped with a motor for rotating the radiation deflection device and a transducer containing a radiation source, a collimator, a beam splitter, a focusing lens, a radiation detector and an amplifier, and are mounted with a focusing lens and a radiation detector which is cut through a beam splitter and a mirror of the radiation deflection device, in which the control unit is connected to the radiation detector, through an amplifier, as well as to the motor for expanding the device to deflect light sources.
    [3]
    3. A spectrophotometer according to claims 1 and 2, characterized in that it further comprises an additional beam splitter, a second focusing lens, a second radiation detector, a second amplifier and a second analog-to-digital converter, with an additional beam splitter installed between the collimator and the sample holder and optically coupled light sources with a second radiation detector through a second focusing lens, while the radiation detector is connected to the processing unit through a second amplifier and a second anaLOGO-tHEINFRONOUS razo Vatel, and a second analog-to-1C «| the converter is connected to the control unit.
    Editor A.Vorovich
    Compiled by V.Tihonov Tehred jfI.Cepdyukov
    Order 3852/58 Circulation 776 Subscription
    VNISHCHSH of the USSR State Committee
    for inventions and discoveries 113035j Moscow Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., 4
    Proofreader N.Korol
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    同族专利:
    公开号 | 公开日
    EP0096318A1|1983-12-21|
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    DE3370074D1|1987-04-09|
    HU186069B|1985-05-28|
    AT25772T|1987-03-15|
    EP0096318B1|1987-03-04|
    引用文献:
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    FR1590828A|1968-11-06|1970-04-20|
    DE2116386A1|1971-03-30|1972-10-12|Wenzel, Martin, Prof.Dr., 1000 Berlin|Arrangement for measuring the light absorption|
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    US3910701A|1973-07-30|1975-10-07|George R Henderson|Method and apparatus for measuring light reflectance absorption and or transmission|
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    US3994590A|1975-04-29|1976-11-30|Martini Raymond G Di|Discrete frequency colorimeter|
    US4011009A|1975-05-27|1977-03-08|Xerox Corporation|Reflection diffraction grating having a controllable blaze angle|
    AT349791B|1975-10-17|1979-04-25|Gao Ges Automation Org|PROCEDURE FOR IDENTIFICATION OF FLUORESCENT SUBSTANCES AND SPECTRAL ABSORBENT FILTER FOR CARRYING OUT THE PROCEDURE|
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    DD152626A1|1980-08-08|1981-12-02|Joachim Voigt|DEVICE FOR EXTINGUISHING MEASUREMENTS|
    GB2109922B|1981-11-11|1985-03-20|Philips Electronic Associated|Atomic resonance line source lamps and spectrophotometers for use with such lamps|
    NO149679C|1982-02-22|1984-05-30|Nordal Per Erik|DEVICE FOR INFRARED RADIO SOURCE|GB2159016B|1984-05-10|1987-12-02|Dainippon Screen Mfg|Image data correction|
    FI77736C|1987-06-25|1989-04-10|Valtion Teknillinen|FOERFARANDE FOER REGLERING AV STRAOLKAELLA OCH REGLERBAR STRAOLKAELLA.|
    US5523582A|1992-04-30|1996-06-04|Ann F. Koo|Method and apparatus for measuring the curvature of wafers with a laser source selecting device|
    US5369286A|1989-05-26|1994-11-29|Ann F. Koo|Method and apparatus for measuring stress in a film applied to surface of a workpiece|
    US5013155A|1989-09-26|1991-05-07|Chemetrics, Inc.|Portable spectrophotometric instrument having vial holder and light integrator|
    US5239180A|1990-02-02|1993-08-24|Boston Advnaced Technologies, Inc.|Laser systems for food analysis based on reflectance ratio detection|
    US5144498A|1990-02-14|1992-09-01|Hewlett-Packard Company|Variable wavelength light filter and sensor system|
    FI982005A|1998-09-17|2000-03-18|Wallac Oy|Sample imaging device|
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    SG130048A1|2005-08-18|2007-03-20|Glucostats System Pte Ltd|An arrangement for a selection of a wavelength|
    US20080305883A1|2007-06-06|2008-12-11|Cameron Don T|Golf club grip|
    US20080305884A1|2007-06-06|2008-12-11|Cameron Don T|Golf club grip|
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    WO2020076844A1|2018-10-08|2020-04-16|Mayo Foundation For Medical Education And Research|Spectrophotometer system and enhanced optical characterization of biological samples using same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU821869A|HU186069B|1982-06-09|1982-06-09|Spectrophotometer operating on discrete wave-lengths|
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