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    Calibration system for a photo multiplier tube
    211.
    发明授权
    Calibration system for a photo multiplier tube 失效
    光电倍增管的校准系统

    公开(公告)号：US5715048A

    公开(公告)日：1998-02-03

    申请号：US561536

    申请日：1995-11-22

    Applicant: Walter W. Taylor

    Inventor： Walter W. Taylor

    IPC: G01J1/08 ,  G01J5/00 ,  H01J43/30 ,  G01J1/10 ,  G01J1/12

    CPC classification number: G01J1/08 ,  H01J43/30 ,  G01J2005/0048

    Abstract: A calibration system for a measuring device utilizing a photo multiplier tube is provided. The calibration system is intended to provide a stable light source variable over a wide range of intensities which can be used to calibrate the PMT reading using a closed loop feedback circuit. The LED and a photo cell are disposed in a reference block chamber whereby the photo cell is in close proximity disposed perpendicular to the axis of the LED. The LED being dome shaped will direct light energy on to the photo cell, and also peripherally. The PMT is disposed adjacent the LED and at an angle to its longitudinal axis whereby light generated by the PMT simultaneously strikes both the photo cell and the PMT without reflection.

    Abstract translation: 提供了一种利用光电倍增管的测量装置的校准系统。 校准系统旨在提供可在宽范围的强度下稳定的光源变量，可用于使用闭环反馈电路校准PMT读数。 LED和光电池设置在参考块室中，由此光电池紧邻LED垂直设置。 LED是圆顶形的将光能引导到光电池，也可以在周边。 PMT邻近LED设置并且与其纵向轴线成一定角度，由PMT产生的光同时在不反射的情况下同时照射光电池和PMT。

    Apparatus for calibrating an optical instrument, and applications thereof
    212.
    发明授权
    Apparatus for calibrating an optical instrument, and applications thereof 失效
    用于校准光学仪器的装置及其应用

    公开(公告)号：US5204733A

    公开(公告)日：1993-04-20

    申请号：US631599

    申请日：1990-12-20

    Applicant: Jean-Pierre Deshayes

    Inventor： Jean-Pierre Deshayes

    IPC: G01J1/00 ,  G01J1/02 ,  G01J1/04 ,  G01J1/08 ,  G01J5/02 ,  G01M11/00

    CPC classification number: G01J1/08

    Abstract: To calibrate a radiometric optical instrument by means of a light source, the focal plane of the optical instrument containing photoelectric detectors which convert image brightness into an electrical signal, the light source is disposed in the entrance pupil or in the aperture diaphragm of the instrument. The invention is particularly suitable for calibrating an optical instrument on board a satellite.

    Abstract translation: 为了通过光源校准辐射光学仪器，光学仪器的焦平面包含将图像亮度转换为电信号的光电检测器，光源设置在仪器的入射光瞳或孔径光阑中。 本发明特别适用于校准卫星上的光学仪器。

    Optical attenuator and optical power meter calibration systems with optical-pulse conversion and averaging
    213.
    发明授权
    Optical attenuator and optical power meter calibration systems with optical-pulse conversion and averaging 失效
    具有光脉冲转换和平均的光学衰减器和光功率计校准系统

    公开(公告)号：US5148233A

    公开(公告)日：1992-09-15

    申请号：US603884

    申请日：1990-10-25

    Applicant: Takayuki Imamura ,  Yuji Ohuchi

    Inventor： Takayuki Imamura ,  Yuji Ohuchi

    IPC: G01N21/59 ,  G01J1/02 ,  G01J1/08 ,  G01J1/16 ,  G01J1/24 ,  G01M11/00 ,  G01M11/02 ,  G01N21/27

    CPC classification number: G01J1/08 ,  G01N21/274 ,  G01J1/24 ,  G01J2001/1621

    Abstract: The invention is designed to calibrate a low-level optical power by a substitution method using a pulse generating section in which a light-shielding disk having a sectorial opening, as a component capable of accurate optical attenuation, is rotated in a light beam to generate an intermittent pulse signal having a duty ratio corresponding to the size of the opening, and the pulse signal is averaged to obtain an optical attenuation equal to the duty ratio. More specifically, while an object to be calibrated is set in a given standard state, a first pulse train having a duty ratio d1=Tw.sub.1 /Tf.sub.1 is input to the object, and an average optical power value A of an output from the object is measured and stored. Subsequently, a second pulse train having a duty ratio d2=Tw.sub.2 /Tf.sub.2 is input to the object, and the object is adjusted such that an average optical power value of an output from the object becomes the value A. Proper calibration can be performed by assigning the optical attenuation of the adjusted object to d1/d2.

    Procedure for controlling a radiation source and controllable radiation source
    214.
    发明授权
    Procedure for controlling a radiation source and controllable radiation source 失效
    控制辐射源和可控辐射源的程序

    公开(公告)号：US5029245A

    公开(公告)日：1991-07-02

    申请号：US457694

    申请日：1989-12-26

    Applicant: Heimo Keranen ,  Jouko Malinen

    Inventor： Heimo Keranen ,  Jouko Malinen

    IPC: G01J1/08 ,  G01J1/32 ,  G01J3/10 ,  G01N21/25

    CPC classification number: G01N21/255 ,  G01J1/08 ,  G01J1/32 ,  G01J3/0259 ,  G01J3/10 ,  G01N2201/0621

    Abstract: The present invention concerns a procedure for controlling a radiation source which has been implemented with the aid of light-emitting diodes, or LEDs, from the radiation produced by them being separated the desired wavelength range, of which the intensity is controlled or maintained constant. The radiation source is implemented by means of a LED row (2) formed of semiconductor chips, or LED elements (21, 22, 23, . . . , 26), from the radiation of which is separated a wavelength range (.DELTA..lambda..sub.1, .DELTA..lambda..sub.2, . . . ) depending on the location of the LED element in said arrays with an optical means dispersing the radiation to a spectrum, and the intensity of the radiation in this wavelength range, or of the output radiation, is controlled or maintained constant by observing the intensity thereof and regulating with its aid the current passing through the respective LED element. The wavelength ranges of the output radiation are selected electrically by activating a suitable LED element (21, 22, 23, . . . , 26) in the LED row (2).

    Abstract translation: PCT No.PCT / FI88 / 00103 Sec。 371 1990年1月19日第 102（e）日期1990年1月19日PCT Filed 1988年6月23日PCT公布。 出版物WO88 / 10462 日期为1988年12月29日。本发明涉及一种用于控制辐射源的方法，该辐射源已经借助发光二极管或LED由其产生的辐射而被实现，所述辐射源被分离出所需的波长范围， 强度被控制或保持恒定。 辐射源通过由半导体芯片或LED元件（21,22,23 ...，26）形成的LED排（2）来实现，其中LED元件（21,22,23 ...，26）从其辐射被分离出波长范围（DELTAλ1 ，DELTAλ2，...），这取决于LED元件在所述阵列中的位置，其中光学装置将辐射分散到光谱，并且控制该波长范围或输出辐射的辐射强度被控制 或通过观察其强度并通过其辅助调节通过相应的LED元件的电流来保持恒定。 通过激活LED行（2）中的合适的LED元件（21,22,23，...，26），输出辐射的波长范围被电选择。

    INTEGRATING SPHERE PHOTOMETER SPECTRAL RESPONSE MEASUREMENT METHOD AND SYSTEM
    220.
    发明公开
    INTEGRATING SPHERE PHOTOMETER SPECTRAL RESPONSE MEASUREMENT METHOD AND SYSTEM 审中-公开

    公开(公告)号：US20230408330A1

    公开(公告)日：2023-12-21

    申请号：US18249739

    申请日：2020-09-17

    Applicant: HANGZHOU EVERFINE PHOTO-E-INFO CO., LTD.

    Inventor： Jiangen PAN ,  Yan HUANG ,  Zhijiang MAO ,  Qian LI

    IPC: G01J1/44 ,  G01J1/08 ,  G01J1/04

    CPC classification number: G01J1/44 ,  G01J1/08 ,  G01J1/0474 ,  G01J2001/0481

    Abstract: An integrating sphere photometer spectral response measurement method and system. The system comprises an integrating sphere photometer and three or more reference light sources having different peak wavelengths. The integrating sphere photometer consists of an integrating sphere (1) and a broadband photodetector (2), and the broadband photodetector (2) is mounted on the sphere wall of the integrating sphere (1). Emergent light of the reference light sources is incident to the integrating sphere (1); the total spectral radiation flux Pi(λ) (i=1, 2, . . . n) received by an integrating sphere photometer system is acquired; the response Mi (i=1, 2, . . . n) of a photometer of mixed light in the integrating sphere (1) is read by means of the broadband photodetector (2); an equation set is established; and the spectral responsivity Srel(λ) of the integrating sphere photometer is obtained by means of numerical solution.

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