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公开(公告)号：US4798464A
公开(公告)日：1989-01-17
申请号：US838858
申请日：1986-03-12
Applicant: Roy E. Boostrom
Inventor： Roy E. Boostrom
CPC classification number: G01J3/10 , G01J3/28 , G01J2003/2866 , G01J3/2803
Abstract: The advantage of sustained wavelength accuracy and mechanical simplicity of a spectrophotometer using a photodiode array as photometric detector and a fixed diffraction grating as dispersion means may be limited to a relatively short wavelength range by problems of stray light, second order errors and overloading of the detector at portions of the wavelength range. By utilizing repeat scanning of the array, each scan being modified by using a different source lamp and correction filters, freedom from the cited problems over part of each scanned wavelength range can be effected. A computer controls the scan sequence and combines the usable portion of each scan to produce error free operation over an extended range.
Abstract translation: 使用光电二极管阵列作为光度检测器和固定衍射光栅作为分散装置的分光光度计的持续波长精度和机械简单性的优点可以通过杂散光，二阶误差和检测器的过载问题被限制在相对较短的波长范围内 在波长范围的部分。 通过利用阵列的重复扫描，可以实现通过使用不同的源灯和校正滤波器来修改每个扫描，从而避免了每个扫描波长范围的一部分上引用的问题。 计算机控制扫描序列，并组合每次扫描的可用部分，以在扩展范围内产生无错误的操作。
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公开(公告)号：US4480913A
公开(公告)日：1984-11-06
申请号：US340158
申请日：1982-01-18
Applicant: John N. Dukes , Charles E. Bryson, III , Lynn Weber , Mark Morganthaler
Inventor： John N. Dukes , Charles E. Bryson, III , Lynn Weber , Mark Morganthaler
CPC classification number: G01J3/02 , G01J3/0289 , G01J3/04 , G01J3/08 , G01J3/42
Abstract: A spectrophotometer optical section is presented which employs a fine positioning beam director which corrects for any deflections of the output beam path and accurately positions the optical beam on the detector slit of the spectrograph. The detector slit is chosen to have a size slightly smaller than the size of the optical beam at the detector slit to have high slit throughput without introducing spurious absorption. The sample cells need not be rigidly mounted thereby enabling use of a sample cell and cell holder which allows quick, easy interchange of cells.
Abstract translation: 提出了一种分光光度计光学部件，其采用精确的定位光束导向器，其校正输出光束路径的任何偏转，并将光束精确地定位在光谱仪的检测器狭缝上。 检测器狭缝被选择为具有比检测器狭缝处的光束尺寸稍小的尺寸，以具有高狭缝通量而不引入杂散吸收。 样品池不需要刚性地安装，从而可以使用样品池和电池座，从而可以快速，方便地更换电池。
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公开(公告)号：US4455097A
公开(公告)日：1984-06-19
申请号：US362887
申请日：1982-03-29
Applicant: Tetsuo Ichikawa , Osamu Akiyama , Rikuo Hira , Takashi Nishimura
Inventor： Tetsuo Ichikawa , Osamu Akiyama , Rikuo Hira , Takashi Nishimura
CPC classification number: G01J3/42
Abstract: A spectrophotometer which can be used selectively as a single-beam and a double-beam type and comprises a light source, a monochromator, a chopper mirror for causing the monochromatic light beam from the monochromator to alternately advance along a first and a second path, in which a reference and a sample cell are disposed respectively, a beam combiner for causing the alternate beams to advance along a common path leading to a photoelectric detector, and a mirror movable for selective positioning in and out of the monochromatic light beam between the monochromator and the chopper mirror.
Abstract translation: 一种分光光度计，其可以选择性地用作单光束和双光束型，并且包括光源，单色仪，用于使来自单色仪的单色光束沿着第一和第二路径交替前进的斩波镜， 其中分别布置参考和采样单元，用于使交替光束沿着通向光电检测器的公共路径前进的光束组合器，以及用于在单色仪之间选择性地定位和输出单色光束的反射镜 和砍刀镜。
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公开(公告)号：US4227079A
公开(公告)日：1980-10-07
申请号：US969758
申请日：1978-12-15
Applicant: John N. Dukes , Charles E. Bryson, III , Lynn Weber
Inventor： John N. Dukes , Charles E. Bryson, III , Lynn Weber
CPC classification number: G01J3/02 , G01J3/0208 , G01J3/021 , G01J3/0289 , G01J3/36 , G01N21/253
Abstract: A beam directing device is provided which employs one or more mirrors mounted on a single rotatable shaft. The orientation of the shaft controls the rotational orientation of these directing mirror(s) to direct the beam toward any of a number of sample or reference cells. Behind each cell is a cube corner which reflects the beam back to the directing mirror(s) for reflection toward the detector. In one embodiment, a shaft encoded senses the orientation of the shaft, the encoder output being servoed against a position signal to coarsely rotate the shaft in order to direct the beam to a sample cell and thence to a spectrograph slit. A pair of slit diodes detect the beam overlap on each side of the slit and their output is used to accurately position the beam on the slit to within one second of arc and correct for deviations in beam direction.
Abstract translation: 提供了一种光束引导装置，其使用安装在单个可旋转轴上的一个或多个反射镜。 轴的方向控制这些定向反射镜的旋转取向以将光束引导到多个样品或参考单元中的任何一个。 每个单元后面都是一个立体角，它将光束反射回定向镜以反射到检测器。 在一个实施例中，编码的轴感测轴的取向，编码器输出抵抗位置信号进行伺服，以粗略地旋转轴，以便将光束引导到样品池，并且然后到达光谱仪狭缝。 一对狭缝二极管检测狭缝的每一侧上的光束重叠，并且它们的输出用于将光束在狭缝上精确地定位在弧的一秒内，并校正光束方向上的偏差。
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145.发明授权
公开(公告)号：US4193695A
公开(公告)日：1980-03-18
申请号：US872586
申请日：1978-01-26
Applicant: Kennosuke Kojima , Takao Imaki , Kozo Ishida
Inventor： Kennosuke Kojima , Takao Imaki , Kozo Ishida
CPC classification number: G01J3/02 , G01J3/0232
Abstract: An optical system for a spectroscopic analyzer. The system has a light source, a detector and a sample cell connected in a line, and in the sample cell or between the sample cell and one of the other elements is a light chopper device. The light chopper has a rotating element in the form of a disc-shaped member or members which periodically block light from the light source and pass light during the times it is not blocked. The rotating element is driven by a motor on the outside of the structure.
Abstract translation: 用于光谱分析仪的光学系统。 该系统具有连接在一行中的光源，检测器和样品池，并且在样品池中或样品池与其它元件中的一个元件之间是光斩波器件。 光斩波器具有圆盘状构件形式的旋转元件，其周期性地阻挡来自光源的光并且在其未被阻挡的时间内通过光。 旋转元件由结构外侧的电动机驱动。
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Patent Agency Ranking
公开(公告)号：US4180327A
公开(公告)日：1979-12-25
申请号：US843790
申请日：1977-10-20
Applicant: Yoshio Maeda , Koichi Matsumoto , Seigo Kamitake
Inventor： Yoshio Maeda , Koichi Matsumoto , Seigo Kamitake
Abstract: Monochromatic light emitted from a monochromator is split into two light beams. These light beams are detected by a photodetector and converted into corresponding electric signals after having been transmitted, respectively, through a sample to be analyzed and a reference placed in the respective beam paths. The signal corresponding to the light beam transmitted through the sample and the signal corresponding to the light beam transmitted through the reference are converted into digital signals which are subsequently stored in respective digital storages or memories. The signal corresponding to the light beam transmitted through the reference is compared with a value in a predetermined range. The resultant value is then converted into an analog signal for operating a sensitivity regulator thereby to adjust the sensitivity of the photodetector. Thus, the signal corresponding to the light beam transmitted through the reference (reference light signal) is so controlled as to lie in a predetermined range. From the digital signals stored in the digital memory, ratio between the sample light signal and the reference light signal is arithmetically calculated by a digital processor unit for determining the transmittance of the sample. Since the reference light signal is prevented from significant variation and the calculation of the signal ratio is effected on the basis of digital technique, the measurement accuracy is remarkably enhanced.
Abstract translation: 从单色仪发射的单色光被分成两束光束。 这些光束被光电检测器检测，并且在分别通过要分析的样本和放置在各个光束路径中的参考之后被转换成相应的电信号。 对应于通过样本传输的光束的信号和对应于通过参考的光束的信号被转换成数字信号，随后将其存储在相应的数字存储器或存储器中。 将与通过参考的光束相对应的信号与预定范围内的值进行比较。 然后将所得到的值转换成用于操作灵敏度调节器的模拟信号，从而调节光电检测器的灵敏度。 因此，通过参考（参考光信号）传输的光束对应的信号被控制在预定范围内。 从存储在数字存储器中的数字信号，采样光信号和参考光信号之间的比例由用于确定样品的透射率的数字处理器单元算术计算。 由于参考光信号被防止显着变化，并且基于数字技术来实现信号比的计算，所以测量精度显着提高。
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公开(公告)号：US4125329A
公开(公告)日：1978-11-14
申请号：US721108
申请日：1976-09-07
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.
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。
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公开(公告)号：US3862804A
公开(公告)日：1975-01-28
申请号：US35434173
申请日：1973-04-25
Applicant: HOFFMANN KONRAD THANISCH
Inventor： HOFFMANN KONRAD THANISCH
CPC classification number: G01J3/08
Abstract: An electronic spectrophotometer for measuring the reflectance of colored samples relative to a reference standard. A switching mirror directs light from a monochromator on a sample and a reference standard that are spaced apart. Reflections therefrom fall on a common photoelectric detector and the resultant signals are amplified, separated and indicated as a quotient between sample and standard reflectance.
Abstract translation: 一种用于测量有色样品相对于参考标准物的反射率的电子分光光度计。 切换镜将来自单色仪的光引导到样品上并且间隔开的参考标准。 其反射落在公共光电检测器上，所得到的信号被放大，分离并表示为样品和标准反射率之间的商。
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149.发明授权Apparatus for periodical parallel displacement of at least one parallel beam 失效用于最少一个并行光束的周期性平行偏移的装置
公开(公告)号：US3843226A
公开(公告)日：1974-10-22
申请号：US33999473
申请日：1973-03-12
Applicant: LKB PRODUKTER AB
Inventor： PERSON T
Abstract: System for periodicially shifting a light beam between two axially displaced paths consists of a rotary assembly subdivided into at least three angularly displaced segments, one of the segments allowing the beam to pass through the assembly along one path, the other two segments comprising axially aligned radially spaced oppositely directed conically shaped reflectors arranged to axially displace the beam when it impinges on one of them.
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公开(公告)号：US3837744A
公开(公告)日：1974-09-24
申请号：US85880269
申请日：1969-09-17
Applicant: ENVIRONMENTAL DATA CORP
Inventor： EGAN D , HOLSTROM G , LORD H
CPC classification number: G01J3/42 , G01J3/0229 , G01J3/08 , G01J3/457 , G01J2003/2866
Abstract: A spectrometer according to this disclosure includes optical means for receiving radiation from a region which may or may not contain particular materials to be monitored. Spectrum display means is provided for displaying the spectrum of received radiation. A first output means having first apertures is disposed to pass an image of absorption lines associated with the particular material being monitored, and second output means having second apertures is disposed to pass an image of continuum associated with the particular material.
Abstract translation: 根据本公开的光谱仪包括用于接收来自可以包含或可以不包含要监视的特定材料的区域的辐射的光学装置。 提供频谱显示装置用于显示所接收的辐射的频谱。 具有第一孔的第一输出装置设置成通过与被监测的特定材料相关联的吸收线的图像，并且设置具有第二孔的第二输出装置以通过与特定材料相关联的连续体的图像。
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