-
公开(公告)号：US4241998A
公开(公告)日：1980-12-30
申请号：US004427
申请日：1979-01-18
Applicant: Rudolf Farkas , Michel Moulin , Georges Revillet
Inventor： Rudolf Farkas , Michel Moulin , Georges Revillet
CPC classification number: G01N21/255
Abstract: Spectrophotometer intended in particular for the optical analysis of samples in a rotatory analyser. In order to attain the characteristics required of a modern spectrophotometer for clinical chemistry and to attain in particular a high reproducibility of the measurements, the spectrophotometer comprises a flash tube, an stabilizing optical device for device for deriving a light beam having a constant spatial distribution from each flash from the flash tube, a grating monochromator for dispersing the light delivered by the stabilizing device and for delivering a beam of filtered light, an optical element for dividing the filtered beam to produce two beams, the first of which travels through a sample for analysis and the second of which reaches a detector which delivers a reference signal corresponding to the intensity of the second beam, and a second detector placed to receive the beam emerging from the sample.
Abstract translation: 分光光度计特别用于旋转分析仪中样品的光学分析。 为了获得用于临床化学的现代分光光度计所需的特性并且特别地实现测量的高再现性，分光光度计包括闪光管，稳定光学装置，用于从具有恒定空间分布的光束导出的装置 每个闪光灯都来自闪光管，用于分散由稳定装置传送的光并用于传送过滤光束的光栅单色仪，用于分割滤光束以产生两束光的光学元件，第一光束穿过样品， 分析，其中第二个到达检测器，该检测器传送对应于第二光束强度的参考信号，以及第二检测器，用于接收从样品出射的光束。
-
公开(公告)号：US4131367A
公开(公告)日：1978-12-26
申请号：US737905
申请日：1976-11-02
Applicant: Park French , William H. Conaway
Inventor： Park French , William H. Conaway
CPC classification number: G01J3/02 , G01J3/0218 , G01J3/08 , G01J3/51 , G01J3/524 , H03M1/0624 , G01J3/465 , H03M1/52
Abstract: A tristimulus colorimeter employs a multiplexed dual slope integrator digital voltmeter wherein unknown and reference light beams are compared by sequentially applying unknown and reference electrical signals representative of the two respective light beams to the non-inverting and inverting inputs, respectively, of the integrator amplifier. Moreover, a compensating circuit provides for compensation of the colorimeter output signals with respect to reflectance error encountered in the optics portion of the colorimeter with such compensation being provided as a function of the light intensity from the colorimeter light source.
Abstract translation: 三色激光色度计采用多路复用双斜率积分器数字电压表，其中通过分别将表示两个相应光束的未知参考电信号和参考电信号分别对应于积分放大器的同相和反相输入来进行比较未知和参考光束。 此外，补偿电路提供了对于在色度计的光学部分中遇到的反射率误差的色度计输出信号的补偿，其中提供了作为来自色度计光源的光强度的函数的补偿。
-
公开(公告)号：US3927944A
公开(公告)日：1975-12-23
申请号：US42573273
申请日：1973-12-18
Applicant: SHIMADZU CORP
Inventor： IWAHASHI KENJI , YAMAMOTO HIROSHI
CPC classification number: G01J3/427
Abstract: A double-beam spectrophotometer which can be used for dual-wavelength measurement and provide two substantially equivalent beams and a third beam of a different wavelength which advances along the same path as one of the two beams and alternately therewith. The optical elements employed are so arranged that the beams have a sharply defined, very narrow cross sectional area at the chopper having a number of chopping teeth so that the chopping speed can be increased without decreasing the efficiency in the use of the energy of the output signal of the detector. The cells may be placed at different places most suitable for measurement depending upon the kind and/or concentration of the sample to be measured.
Abstract translation: 一种双光束分光光度计，其可用于双波长测量，并提供两个基本相等的光束和不同波长的第三光束，其沿与两个光束之一交替的相同路径前进。 采用的光学元件被布置成使得光束在切割器处具有清晰限定的非常窄的横截面积，其具有多个切割齿，使得可以增加斩波速度而不降低使用输出能量的效率 检测器的信号。 细胞可以放置在最适合于测量的不同地方，这取决于待测样品的种类和/或浓度。
-
公开(公告)号：US3886363A
公开(公告)日：1975-05-27
申请号：US43423674
申请日：1974-01-17
Applicant: HITACHI LTD
Inventor： OHNISHI YASUSHI , TSUKADA MASAMICHI
CPC classification number: G01J3/4406
Abstract: A spectrophotofluorometer capable of selectively performing photometry of one of a plurality of secondary lights such as fluorescence, phosphorescence and the like simultaneously emitted from a specimen due to the exciting light from a light source depending on the life time of the secondary light.
Abstract translation: 一种分光光度计，其能够根据二次光的寿命，由于来自光源的激发光而从样本同时发射的多个二次光中的一个以上的二次光中的一个，例如荧光，磷光等。
-
公开(公告)号：US3877812A
公开(公告)日：1975-04-15
申请号：US32824073
申请日：1973-01-31
Applicant: WILKS SCIENTIFIC CORP
Inventor： THOMPSON DUANE T
CPC classification number: G01J3/02 , G01J3/0232 , G01J2003/1213 , G01N21/314
Abstract: There is disclosed a multiple wavelength infrared spectrometer. It includes an optical chopper and a pendulum-like filter carrier which inserts a plurality of filters sequentially into the radiation beam. Filter changes occur during an opaque period of the chopper and each filter remains in place for a predetermined number of radiation pulses. The radiation passes through the sample and onto a detector which produces an electrical signal. An electronic circuit operates upon the signal so produced to provide an output proportional to sample absorbance.
Abstract translation: 公开了一种多波长红外光谱仪。 它包括一个光斩波器和一个将多个滤波器顺序插入到辐射束中的摆式滤波器载体。 在斩波器的不透明时段期间发生滤波器变化，并且每个滤波器保持在预定数量的辐射脉冲的适当位置。 辐射通过样品并进入产生电信号的检测器。 电子电路根据所产生的信号进行操作，以提供与样品吸光度成比例的输出。
-
Patent Agency Ranking116.发明授权Light shifting system for use in an optical instrument, such as a spectrophotometer 失效用于光学仪器的光转换系统，如分光光度计
公开(公告)号：US3856415A
公开(公告)日：1974-12-24
申请号：US34580473
申请日：1973-03-28
Applicant: MICROMEDIC SYSTEMS INC
Inventor： SANZ M , REVILLET G
CPC classification number: G01J1/08
Abstract: The present invention relates to optical instruments, such as photometers including spectrophotometers, and relates more particularly to a light-shifting device of light refracting type for receiving a beam of light used in such instruments and shifting it into one or the other of two parallel paths. An optical instrument having a light source, means comprising a diaphragm for directing a collimated beam of light from the light source in a path along an optical axis, light-refracting means disposed in the path for receiving the light beam and shifting the beam from its incident path thereto alternately to each of two offset parallel paths which are parallel to the incident path, and means for supporting, in the offset parallel paths, sample and comparison objects to be scanned by the shifted light beam in those paths.
Abstract translation: 本发明涉及光学仪器，例如包括分光光度计的光度计，并且更具体地涉及一种用于接收在这种仪器中使用的光束并将其移动到两个平行路径中的一个或另一个的光折射型的光移动装置 。
-
公开(公告)号：US3817633A
公开(公告)日：1974-06-18
申请号：US27739072
申请日：1972-08-08
Applicant: WHITE J
Inventor： WHITE J
CPC classification number: G01J3/4406 , G01J3/08 , G01J2003/2866
Abstract: A spectroradiometer having two detectors and a pair of monochromator channels for measuring the intensity of light emitted from an unknown source. One of the monochromator channels is illuminated with light from a reference source, and a fraction of the resulting monochromatic beam is received by the first detector to produce a reference signal. Another fraction of the monochromatic beam is combined with light from the unknown source by directing the two to opposite sides of a rotating chopper and then alternately through the other monochromator channel to the second detector. The second detector produces successive signals respectively corresponding to the intensity of the light from the unknown source and the intensity of the light from the reference source. The ratio between these signals is multiplicatively combined in an electrical circuit with the reference signal from the first detector, thus providing a measurement of the unknown intensity. In cases in which conventional detectors are employed, certain preferred embodiments of the invention include an additional chopper for the light illuminating the monochromator channels to enable a correction for background or dark signals from the detectors.
Abstract translation: 具有两个检测器和一对单色仪通道的光谱辐射计，用于测量从未知来源发射的光的强度。 一个单色仪通道被来自参考源的光照亮，并且所得单色光束的一小部分被第一检测器接收以产生参考信号。 通过将两个光束引导到旋转的斩光器的相对侧，然后通过另一个单色仪通道交替到第二个检测器，将单色光束的另一部分与来自未知光源的光组合。 第二检测器产生分别对应于来自未知源的光的强度和来自参考源的光的强度的连续信号。 这些信号之间的比例在电路中与来自第一检测器的参考信号相乘，从而提供未知强度的测量。 在使用常规检测器的情况下，本发明的某些优选实施例包括用于照亮单色仪通道的光的附加斩波器，以便能够对来自检测器的背景或暗信号进行校正。
-
公开(公告)号：US3769516A
公开(公告)日：1973-10-30
申请号：US3769516D
申请日：1972-12-04
Applicant: PERKIN ELMER CORP
Inventor： MARKLE D , SCHLESINGER E
CPC classification number: G01J3/02 , G01J3/0232 , G01J3/0291 , G01J3/08 , G01J3/4406 , G01N21/64 , G01N2021/6426 , G01N2201/0616
Abstract: A fluorescence radiation detector of the Fraunhofer line discriminator type. A sky telescope and an earth telescope each form radiation beams which are directed to a single optical chopper. The chopper sequentially directs each beam through a single Fabry-Perot filter centered at the Fraunhofer line and a single neutral density filter. The chopped segments are recombined to form a beam containing A, B, C, and D portions in time sequence where: A the direct solar intensity within the continuum; B the direct solar intensity inside the selected Fraunhofer line; C the reflected solar intensity inside the selected Fraunhofer line; and D the reflected solar intensity in the continuum. A single photomultiplier tube with a blocking filter in front receives the beam and produces corresponding sequential electrical pulses which are electronically processed to yield fluorescence (p) from the equation
Abstract translation: Fraunhofer线鉴别器类型的荧光辐射检测器。 天空望远镜和地球望远镜均形成指向单个光斩波器的辐射束。 斩波器顺序地引导每个光束穿过以弗劳恩霍夫线为中心的单个法布里 - 珀罗滤光片和单个中性密度滤光片。 将切碎的片段重新组合以形成包含A，B，C和D部分的束，其中：
-
公开(公告)号：US3716300A
公开(公告)日：1973-02-13
申请号：US3716300D
申请日：1971-12-16
Applicant: HITACHI LTD
Inventor： MATSUMOTO K , ISHIKAWA M
CPC classification number: G01J3/42
Abstract: The beam modulating portion of a spectrophotometer has three beam paths, a first reference beam path, a second reference beam path, and a common sample beam path. The two reference beams are interrupted alternately by respective choppers which operate in synchronism and the sample beam is inserted into the respective interrupted periods of the two reference beams by a reflection mirror to provide two composite signals. The monochrometer portion of this spectrophotometer is a combination of two monochromators of the conventional type each receiving a respective composite signal.
Abstract translation: 分光光度计的光束调制部分具有三个光束路径，第一参考光束路径，第二参考光束路径和公共样本光束路径。 两个参考光束被相互斩波器交替地中断，它们同步工作，并且采样光束通过反射镜插入到两个参考光束的相应的中断周期中，以提供两个复合信号。 该分光光度计的单色仪部分是传统类型的两个单色仪的组合，每个都接收相应的复合信号。
-
公开(公告)号：US3606547A
公开(公告)日：1971-09-20
申请号：US3606547D
申请日：1969-12-22
Applicant: SHIMADZU CORP
Inventor： IWAHASHI KENJI
CPC classification number: G01J3/02 , G01J3/0208 , G01J3/08
Abstract: A SPECTROPHOTOMETER WHICH INCLUDES AN OPTICAL SYSTEM ARRANGED BETWEEN THE EXIT SLIT OF A MONOCHROMATOR AND THE SAMPLE CELL SO THAT THE MERIDIONAL AND SAGITTAL IMAGE PLANES OF THE OPTICAL SYSTEM ARE AXIALLY DISPLACED FROM EACH OTHER, THEREBY CAUSING THE BUNDLE OF MONOCHROMATIC LIGHT RAYS TO HAVE A WELL DEFINED, VERY THIN AND SUBSTANTIALY EQUAL CROSS SECTIONAL AREA FOR A LONG DISTANCE ALONG THE OPTICAL AXIS OF THE SYSTEM. WITHIN THIS DISTANCE THE SAMPLE CELL IS PLACED SO THAT THE CELL CAN BE MADE LONGER THAN THE CELLS USED IN THE PRIOR ART SPECTROPHOTOMETERS, WITH THE CROSS SECTIONAL AREA OF THE BUNDLE OF MONOCHROMATIC LIGHT RAYS PASSING THROUGH THE SAMPLE IN THE CELL SUBSTANTIALLY CORRESPONDING TO THE CROSS SECTIONAL AREA OF THE SAMPLE THROUGH THE WHOLE LENGTH OF THE CELL. THIS EN-
SURES EFFICIENT AND ACCURATE MEASUREMENT OF SAMPLES, ESPECIALLY THOSE OF RELATIVELY LOW CONCENTRATIONS.
-
-
-
-
-
-
-
-
-
Search Results
156
records
(took 0.013 seconds)
