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公开(公告)号：US4784488A
公开(公告)日：1988-11-15
申请号：US900730
申请日：1986-08-27
Applicant: Walter M. Doyle , Norman S. Hughes
Inventor： Walter M. Doyle , Norman S. Hughes
CPC classification number: G02B7/182 , G01J3/08 , G01J3/453 , G01N2201/024
Abstract: A modular spectrometer system is disclosed which includes various types of standard building blocks which permit: (a) a multiple accessory system in which experiments can be readily switched from one accessory to another; and (b) easy and cost effective revision of the multiple accessory system as desired. Optical switch components are provided which facilitate steering and switching of the radiation paths, and which are capable of being assembled from standard parts. Modular connecting tubes and interface elements are provided to interconnect components in the system. Component substitutions and position adjustments may be readily accomplished without loss of alignment in the system.
Abstract translation: 公开了一种模块化光谱仪系统，其包括各种类型的标准构建块，其允许：（a）多个附件系统，其中实验可以容易地从一个附件切换到另一个附件; 和（b）根据需要容易且成本有效地修订多个附件系统。 提供了光开关部件，其便于辐射路径的转向和切换，并且能够从标准部件组装。 提供了模块化的连接管和接口元件来连接系统中的部件。 组件替换和位置调整可以容易地实现，而不会在系统中失去对准。
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公开(公告)号：US4760258A
公开(公告)日：1988-07-26
申请号：US924067
申请日：1986-10-28
Applicant: Jurgen Gast , Arno Simon
Inventor： Jurgen Gast , Arno Simon
CPC classification number: G01J3/08
Abstract: In an IR-FR- spectrometer, a light beam (10) is guided from a source to a detector (31) and is passed, in a first mode of operation, by means of first optical means (12, 19, 20) through a sample to be measured (28) and, in a second mode of operation, by second optical means (12, 22, 21) through a reference sample (32). The first and second optical means comprise a common mirror element (12) having at least first and second mirror surfaces (13, 14, 15, 16) which are inclined relative to each other. The mirror surfaces abut in at least one point. There is provided means for moving the mirror element (12) relative to the light beam so that during such relative movement the impinging point of the light beam (10) is displace from the first mirror surface (13), over onto the second mirror surface (14).
Abstract translation: 在IR-FR-光谱仪中，光束（10）从源极被引导到检测器（31），并且在第一操作模式下通过第一光学装置（12,19,20）通过 待测量的样品（28），并且在第二操作模式下，通过第二光学装置（12,22,21）通过参考样品（32）。 第一和第二光学装置包括具有相对于彼此倾斜的至少第一和第二镜面（13,14,15,16）的公共镜元件（12）。 镜面至少贴在一个点上。 提供了用于相对于光束移动镜元件（12）的装置，使得在这种相对运动期间，光束（10）的入射点从第一镜面（13）移位到第二镜面 （14）。
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公开(公告)号：US4740082A
公开(公告)日：1988-04-26
申请号：US858555
申请日：1986-04-24
Applicant: Eugene F. Young
Inventor： Eugene F. Young
CPC classification number: G01J3/02 , G01J3/0229 , G01J3/024 , G01J3/08 , G01J3/453
Abstract: A spectrophotometer includes means for ensuring that the active area of a detector is always filled regardless of the resolution aperture setting of the instrument.
Abstract translation: 分光光度计包括用于确保检测器的有效区域始终被填充的装置，而不管仪器的分辨率孔径设置如何。
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公开(公告)号：US4653880A
公开(公告)日：1987-03-31
申请号：US707231
申请日：1985-03-01
Applicant: Donald W. Sting , Robert G. Messerschmidt
Inventor： Donald W. Sting , Robert G. Messerschmidt
CPC classification number: G02B21/04 , G01N21/474 , G02B17/061 , G02B21/06
Abstract: A reflecting beam splitting objective employing only three mirrors obtains a high reflective efficiency. In one embodiment, the objective contains a small intercepting mirror between primary and secondary mirrors of a Cassegrain mirror arrangement. The position of the intercepting mirror is determined so that the mirror receives an input beam and directs that beam onto a first portion of the secondary mirror without vignetting the beam when it is reflected from the secondary mirror to a first portion of the primary mirror or by cutting off part of the image transmitted from the second portion of the secondary mirror to a focus behind the primary mirror. The objective may use all energy that is input into the objective to image a sample. The objective has demonstrated particular utility in the field of infrared spectroscopy of small samples.
Abstract translation: 仅使用三个反射镜的反射光束分离目标获得高反射效率。 在一个实施例中，该物镜包含卡塞格林反射镜布置的主镜和次镜之间的小截取镜。 确定拦截镜的位置，使得反射镜接收输入光束并且将光束引导到次级反射镜的第一部分上，而不会在光束从副反射镜反射到主反射镜的第一部分时被渐晕，或者通过 将从次级反射镜的第二部分传输的图像的一部分切割成主镜后面的焦点。 目标可以使用输入到目标中的所有能量来对样本进行成像。 该目标已经证明在小样品的红外光谱领域特别有用。
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公开(公告)号：US4630923A
公开(公告)日：1986-12-23
申请号：US697824
申请日：1985-02-04
Applicant: Petrus P. Tans , Daniel A. Lashof
Inventor： Petrus P. Tans , Daniel A. Lashof
CPC classification number: G01J3/44 , G01J3/02 , G01J3/0218 , G01N21/65 , H01S3/0014 , H01S3/30 , G01J1/1626 , G01J3/08 , G01N2021/1751 , G01N2021/391 , G01N2021/651 , G01N2201/0833
Abstract: A device for determining the relative composition of a sample of a gas by comparison of the Raman-scattered light of the sample with that of a known gas comprising: a means for passing a single light source through the unknown and the known gases, choppers to alternate the Raman-scattered light into a common light detection and measuring system, optical fiber networks for spatially mixing the resulting Raman scattered light from each sample and directing the mixed light to selective detectors, and a compiler to record the light intensity of each wavelength of Raman-scattered light as a function of the sample from which it originated.
Abstract translation: 通过将样品的拉曼散射光与已知气体的拉曼散射光进行比较来确定气体样品的相对组成的装置，包括：用于使单个光源通过未知物和已知气体，斩波器的装置 将拉曼散射光交替成普通光检测和测量系统，用于空间混合来自每个样品的所得拉曼散射光并将混合光引导到选择性检测器的光纤网络，以及编辑器，用于记录每个波长的光强度 拉曼散射光作为其起源的样品的函数。
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Patent Agency Ranking
公开(公告)号：US4583853A
公开(公告)日：1986-04-22
申请号：US585588
申请日：1984-03-02
Applicant: Hirohumi Maeda , Yoshiro Fukasawa , Makoto Kobayashi
Inventor： Hirohumi Maeda , Yoshiro Fukasawa , Makoto Kobayashi
CPC classification number: G01J1/16 , G01J3/42 , G01J2001/4242
Abstract: In a ratio-type double-beam infrared spectrophotometer, an output signal of the photodetector is frequency discriminated to derive therefrom a component having a fundamental frequency f corresponding to at least one of the sample and reference beam intensities and another component having a frequency 2f corresponding to at least the other beam intensity, and these frequency components are computed to determine the ratio of the sample beam intensity to the reference beam intensity. According to the invention, the component of fundamental frequency f is synchronously rectified into a rectified signal which is further differentiated into a differential value, the differential value is subtracted from the rectified signal to give a signal which is compensated for rapid changes of spectral absorption due to the presence of H.sub.2 O and CO.sub.2 in the beam paths during wavelength scanning and is used as the f-component signal.
Abstract translation: 在比例型双光束红外分光光度计中，对光电检测器的输出信号进行频率鉴别，从而得到具有对应于采样和参考光束强度中的至少一个的基本频率f的分量，以及具有对应于频率2f的频率的另一分量 到至少另一个光束强度，并且计算这些频率分量以确定样本光束强度与参考光束强度的比率。 根据本发明，基频f的分量被同步整流为整流信号，进一步微分为差分值，从整流信号中减去差分值，得到补偿频谱吸收快速变化的信号 在波长扫描期间在光束路径中存在H 2 O和CO 2，并且被用作f分量信号。
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公开(公告)号：US4478513A
公开(公告)日：1984-10-23
申请号：US349702
申请日：1982-02-18
Applicant: David R. Skinner , Rex A. Stokes , Lewis O. Freeman , Alan R. McNeill
Inventor： David R. Skinner , Rex A. Stokes , Lewis O. Freeman , Alan R. McNeill
CPC classification number: G02B27/143 , G01J1/36 , G01J3/02 , G01J3/0205 , G01J3/021 , G01J3/08
Abstract: This invention relates to an optical system which will enable easy use in the field. Known systems either require sample and reference targets to be imaged within the same telescope field or do not enable accurate identification of the measuring field in a view finder.The present invention overcomes this problem by providing a system having a first branch (10, 12) and a second branch (14) which receive light from a sample and reference target respectively. A shutter 22 sequentially allows light from the two branches to pass to a mirror 20 having a slit 30, reflective portions 32 and transparent portions 34. Light from the first branch passes through portions 30 and 34 to a detecting branch (42, 46, 50-56) and some light is reflected through a lens 16 to eye piece 19. Similarly some light from the second branch passes through mirror 30 and 34 to eye piece 19 and some light is reflected to the detecting branch. Accordingly the measuring field can be accurately identified by looking through the eye piece 19 while at the same time light is directed to the detecting branch for analysis.
Abstract translation: 本发明涉及能在现场容易使用的光学系统。 已知的系统要么将样本和参考目标在相同的望远镜视野内进行成像，要么不能准确地识别取景器中的测量场。 本发明通过提供一种具有分别从样本和参考目标接收光的第一分支（10,12）和第二分支（14）的系统来克服这个问题。 快门22顺序地允许来自两个分支的光通过具有狭缝30的反射镜20，反射部分32和透明部分34.来自第一分支的光通过部分30和34到达检测分支（42,46,50 -56），并且一些光通过透镜16反射到眼片19.类似地，来自第二分支的一些光通过反射镜30和34到眼片19，并且一些光被反射到检测分支。 因此，通过观察眼睛片19可以准确地识别测量场，同时将光指向检测支路进行分析。
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公开(公告)号：US4477190A
公开(公告)日：1984-10-16
申请号：US284841
申请日：1981-07-20
Applicant: Max D. Liston , David G. Dickinson , William A. Stark
Inventor： Max D. Liston , David G. Dickinson , William A. Stark
CPC classification number: G01N21/253 , G01N2021/3174
Abstract: A multichannel spectrophotometer has a single radiant energy source formed into a multiplicity of radiant energy beams which are each simultaneously intercepted by segments of a rotary source filter wheel, the spectral radiant energy output selected by each filter segment being directed into a separate source radiant energy conduit and transmitted to a remote sample station where a cuvette containing a sample to be analyzed is located, the radiant energy outputs of each cuvette being directed into a separate detector radiant energy conduit where each conduit is intercepted by a filter segment of a second rotating detector filter wheel identical to the source filter wheel and rotated in aligned synchronism therewith, the spectral radiant energy outputs of each segment of the detector filter wheel being further directed into a separate radiant energy detector and signal processing electronics associated with that sample station or spectrophotometer channel from which the radiant energy signal being detected and analyzed has been received. Central control, timing and display electronics are shared by each channel and may be overall programmed and controlled by computer. In one application involving the measurement of fluorescence, the filters of the detector filter wheel will be different from the filters of the source filter wheel so as to excite the sample cuvette at one wavelength and to measure fluorescent response at another.
Abstract translation: 多通道分光光度计具有形成多个辐射能量束的单个辐射能量源，每个辐射能量束都被旋转源滤光轮的各个部分同时截取，由每个滤光片段选择的光谱辐射能输出被引导到单独的光源辐射能导管 并传输到远程采样站，其中包含要分析的样品的比色杯位于其中，每个比色杯的辐射能输出被引导到单独的检测器辐射能导管中，其中每个导管被第二旋转检测器滤光片的滤光片截取 车轮与源滤光轮相同并与其同步旋转，检测器滤光轮的每个部分的光谱辐射能输出被进一步导向到与该样品台或分光光度计通道相关联的单独的辐射能量检测器和信号处理电子器件 辐射能量 已经接收到检测和分析的点火。 中央控制，定时和显示电子设备由每个通道共享，可以由计算机进行整体编程和控制。 在涉及荧光测量的一个应用中，检测器滤光轮的滤光器将不同于源滤光轮的滤光片，以便在一个波长处激发样品比色皿并测量另一个波长的荧光响应。
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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。
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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。
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