公开(公告)号：US5223913A

公开(公告)日：1993-06-29

申请号：US858631

申请日：1992-03-27

Applicant: Osamu Ando ,  Toshiaki Fukuma

Inventor： Osamu Ando ,  Toshiaki Fukuma

IPC: G01J3/00 ,  G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/12 ,  G01J3/18

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0235 ,  G01J3/027 ,  G01J3/06 ,  G01J2003/063 ,  G01J2003/064 ,  G01J2003/1213 ,  G01J3/18

Abstract: A spectrophotometer including: a) a light source switching mechanism for switching a plurality of light sources by swinging a light source mirror; b) a filter selecting mechanism; c) a diffraction grating rotating mechanism; and d) a controller for determining the operation origins of the three driving mechanisms using a rough origin sensor provided for the diffraction grating rotating mechanism and a photometer. The operation of the controller is to: i) determine an origin of the movement of the filter by making an end of the filter frame to touch a stopper; ii) determine a rough origin of the diffraction grating using the rough origin sensor; and iii) determine an origin of the movement of the light source mirror and a precise origin of the movement of the diffraction grating by detecting the position at which the photometer detects the maximum intensity of light.

公开(公告)号：US4991934A

公开(公告)日：1991-02-12

申请号：US392428

申请日：1989-08-10

Applicant: Michael C. Hettrick

Inventor： Michael C. Hettrick

IPC: G01J1/04 ,  G01J3/06 ,  G01J3/18 ,  G02B5/18

CPC classification number: G02B5/1861 ,  G01J3/06 ,  G01J3/18 ,  G01J2003/069 ,  G01J2003/1847 ,  G01J2003/1852 ,  G01J3/1804

Abstract: An optical system and method comprising a diffraction grating which consists of diffracting elements spaced from one another by unequal distances. Correction of residual defocusing in the image produced by such a grating is accomplished by translating it along its surface. As one embodiment, a monochromator is constructed on which a self-focusing grating scans the value in wavelength which is transmitted between fixed slits by rotation of the grating about an axis fixed in space. Combined with a translation of the grating along its surface, such a monochromator produces a symmetrical image exactly in focus at the exit slit for all scanned wavelengths.

Abstract translation: 一种光学系统和方法，包括衍射光栅，该衍射光栅由衍射元件彼此间隔不等距离组成。 通过这种光栅产生的图像中的残余散焦的校正是通过沿其表面平移来实现的。 作为一个实施例，构建单色仪，其上自聚焦光栅通过围绕固定在空间中的轴旋转光栅扫描在固定狭缝之间传输的波长值。 结合光栅沿着其表面的平移，这样的单色仪在所有扫描波长的出射狭缝处产生精确对焦的对称图像。

公开(公告)号：US4979123A

公开(公告)日：1990-12-18

申请号：US199765

申请日：1988-05-27

Applicant: Keun Y. Yang

Inventor： Keun Y. Yang

IPC: G01N21/62 ,  G01J1/44 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32 ,  G01J3/36 ,  G01J3/443 ,  G01N21/67

CPC classification number: G01J3/06 ,  G01J3/28 ,  G01J3/36 ,  G01N21/67 ,  G01J2001/446 ,  G01J2003/2866 ,  G01J2003/2893

Abstract: An apparatus for determining concentrations of mineral elements comprising an improved spectrometer wherein the spectrometer functions to diffract the light to be measured by means of a rotary grating and to determine the strength of light by using a single PM tube and further detects the wavelength of the diffracted light, by using a laser beam generator, reflective mirrors, photo diodes so as to analyze the composition and the concentration of mineral elements.

Abstract translation: 一种用于确定矿物元素浓度的装置，包括改进的光谱仪，其中光谱仪用于通过旋转光栅衍射待测量的光并通过使用单个PM管确定光的强度，并进一步检测衍射的波长 光，通过使用激光束发生器，反射镜，光电二极管，以分析矿物元素的组成和浓度。

公开(公告)号：US4976541A

公开(公告)日：1990-12-11

申请号：US298779

申请日：1989-01-17

Applicant: Theodore J. Scuitto ,  Thomas J. Scuitto ,  Al E. Bernhard

Inventor： Theodore J. Scuitto ,  Thomas J. Scuitto ,  Al E. Bernhard

IPC: G01J3/06 ,  G01N21/31

CPC classification number: G01J3/06 ,  G01N21/3103 ,  G01N2201/0696

Abstract: Each sample is analyzed for all desired elements before starting the next sample, using thermal or nonthermal atomizing devices fro liquid or solid samples. Other new features include the grating drive, lamp-carousel alignment, pulsed atom source, lamp-drift compensation, and dynamic range control. The grating is driven by an arm, the arm by a taut band wound on a drum, and the drum directly by a motor. The lamp carousel mounts on an "L"-shaped rocker with one horizontal and one vertical arm. The carousel rotates on a horizontal axis at the end of the vertical arm. The rocker itself pivots on a horizontal axis at the corner of the L; it is driven about its axis by a motor and screw at the other end of the L. Carousel rotation on its axis moves the right lamp into position and adjusts it accurately in a vertical direction. Pivoting of the rocker simultaneously on its corner axis positions the lamp accurately in a horizontal direction. The pulsed atom source is a combined angled-gas-jet-and-discharge unit. During pulses it yields high absorption with better detectability limits; average power is lower. The lamp-drift compensator makes double duty of the absorber pulsation to obtain a lamp-intensity reading between pulses. Dynamic range control is obtained by even further exploiting the pulsation, namely by taking measurements at a known delay (and decay) time after each pulse.

Abstract translation: 在开始下一个样品之前，使用热或非热雾化装置进行液体或固体样品，分析每个样品中所有需要的元素。 其他新功能包括光栅驱动，灯转盘对准，脉冲原子源，灯漂移补偿和动态范围控制。 光栅由臂驱动，手臂由缠绕在鼓上的拉紧带，鼓由电机直接驱动。 灯转盘安装在“L”形摇臂上，一个水平和一个垂直臂。 圆盘传送带在垂直臂的末端在水平轴上旋转。 摇杆本身在L的角落的水平轴上枢转; 它通过马达和其他轴的螺丝驱动。在其轴上的旋转木马旋转将右灯移动到位并在垂直方向上精确地调整它。 摇杆在其角轴上同时旋转将灯在水平方向上准确地定位。 脉冲原子源是组合的倾斜气体喷射和放电单元。 在脉冲期间，它产生高吸收和更好的可检测限制; 平均功率较低。 灯漂移补偿器使吸收器脉动的双重作用获得脉冲之间的灯强度读数。 通过甚至进一步利用脉动，即通过在每个脉冲之后以已知的延迟（和衰减）时间进行测量来获得动态范围控制。

公开(公告)号：US4968122A

公开(公告)日：1990-11-06

申请号：US313683

申请日：1989-02-21

Applicant: Louis Hlousek ,  Raymond G. Bryan

Inventor： Louis Hlousek ,  Raymond G. Bryan

IPC: G01J3/06 ,  G02B7/00

CPC classification number: G01J3/06 ,  G02B7/00 ,  Y10S359/90

Abstract: An improved mounting for a rotating diffraction grating assembly as used in a spectrophotometer directly connects the grating to the galvanometer that rotates the grating. The galvanometer is gimbally mounted on a plate so that its position, and that of the grating, can be adjusted so that the plane of dispersion of the grating passes through a desired point when the grating is rotated.

Abstract translation: 在分光光度计中使用的旋转衍射光栅组件的改进的安装将光栅直接连接到旋转光栅的电流计。 电流计平板地安装在板上，使得其位置和光栅的位置可以被调节，使得当光栅旋转时光栅的色散平面通过期望的点。

公开(公告)号：US4961646A

公开(公告)日：1990-10-09

申请号：US300929

申请日：1989-01-24

Applicant: Fortunat Schrammli ,  Markus Berner ,  Hans Ott

Inventor： Fortunat Schrammli ,  Markus Berner ,  Hans Ott

IPC: G01J3/18 ,  G01J3/06 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01J3/50 ,  G01N21/27 ,  G01N21/47

CPC classification number: G01J3/10 ,  G01J3/06 ,  G01J3/50 ,  G01J3/502 ,  G01N21/474 ,  G01J3/0224 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/1838 ,  G01J3/2803

Abstract: A manual device for the detection of photometric data which includes a measuring head to illuminate a measuring surface and to detect the light reflected. The measuring light captured by the measuring head is spectrally decomposed by a monochromator containing a diffraction grating. The intensity of the light exiting through an outlet diaphragm is detected by a photodetector. The spectral position of the measuring light is set by a drive motor rotating a grating shaft connected with the holder of the diffraction grating. From the spectra detected, densitometric and colorimetric data are calculated by a computer, which together with the spectra determined, may be displayed on a display field.

Abstract translation: 一种用于检测测光数据的手动装置，其包括测量头以照亮测量表面并检测反射的光。 由测量头捕获的测量光由包含衍射光栅的单色仪进行光谱分解。 通过出口隔膜排出的光的强度由光检测器检测。 测量光的光谱位置由旋转与衍射光栅的支架连接的光栅轴的驱动电机设定。 从所检测的光谱中，通过计算机计算密度和比色数据，其与确定的光谱一起可以显示在显示区域上。

公开(公告)号：US4930892A

公开(公告)日：1990-06-05

申请号：US248511

申请日：1988-09-23

Applicant: Detlev Hadbawnik ,  Karsten Kraiczek

Inventor： Detlev Hadbawnik ,  Karsten Kraiczek

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36 ,  G01N21/31 ,  G01N30/74

CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/021 ,  G01J3/2803 ,  G01J2003/062 ,  G01J2003/064 ,  G01J2003/067 ,  G01J3/1838 ,  G01N21/31 ,  G01N30/74

Abstract: A photodiode array spectrometer for determining the spectral composition of a plychromatic beam of radiation comprises diffraction means (10) which generate from the polychromatic beam a diffracted beam with a plurality of spatially separated diffracted rays of different wavelengths (.lambda..sub.1, .lambda..sub.2, .lambda..sub.3). A photodiode array (11) receives the diffracted beam whereby each photodiode intercepts a different spectral portion of the beam. A rotatable transparent plate (8) is provided in the beam path in front of the diffraction means (10) which, due to refraction of the beam upon entering and leaving the plate (8), permits to vary the direction of the beam impinging on the diffraction means (10) and therefore the direction of the diffracted beam in small steps depending on the angle of rotation of the plate (8). By the stepwise displacement of the diffracted beam across the photodiode array (11), a better sampling of the diffracted beam and therefore an improved spectral resolution is achieved. The invention can be used in the spectrometric analysis of a sample contained in a sample cell ( 5), whereby the sample cell is irradiated with polychromatic light from a light source (1).

公开(公告)号：US4469441A

公开(公告)日：1984-09-04

申请号：US354725

申请日：1982-03-04

Applicant: John A. Bernier ,  Garry C. Kunselman ,  Karl W. Kaltenbach

Inventor： John A. Bernier ,  Garry C. Kunselman ,  Karl W. Kaltenbach

IPC: G01J3/06 ,  G01J3/12 ,  G01J3/18 ,  G01N21/73

CPC classification number: G01J3/06 ,  G01J2003/1204 ,  G01J2003/1828

Abstract: A scanning monochromator system comprises a housing, structure defining entrance and exit apertures, and a radiation dispersing component in the housing arranged to disperse radiation passing through the entrance aperture into a spectrum for transmission towards the exit aperture. The dispersing element is directly coupled to an electromagnetic drive transducer with the assembly of a rotary component of the drive transducer and the dispersing component being mounted for rotation as a unit about a stationary axis that is perpendicular to the optical axis of the system so that a selected portion of the radiation dispersed by the dispersing component is passed through the exit aperture. The drive transducer is arranged to move a selected portion of dispersed radiation at the exit aperture over a wavelength range of at least 3000 angstroms with a reproducible accuracy of better than 0.03 angstroms in less than one second.

Abstract translation: 扫描单色仪系统包括壳体，限定入射孔和出射孔的结构，以及壳体中的辐射分散部件，布置成将通过入口孔的辐射分散成光谱以朝向出射孔传播。 分散元件通过驱动换能器的旋转部件的组件直接耦合到电磁驱动换能器，并且分散部件被安装成围绕垂直于系统的光轴的固定轴线旋转作为一个单元，使得 通过分散组分分散的辐射的选定部分通过出射孔。 驱动传感器被布置成在少于一秒的时间内在至少3000埃的波长范围内移动出口孔处的分散辐射的选定部分，其重现精度优于0.03埃。

公开(公告)号：US4464051A

公开(公告)日：1984-08-07

申请号：US354254

申请日：1982-03-02

Applicant: Paul C. Talmadge ,  Joseph A. Vergato

Inventor： Paul C. Talmadge ,  Joseph A. Vergato

IPC: G01J3/06 ,  G01J3/08 ,  G01J3/42

CPC classification number: G01J3/42 ,  G01J3/06 ,  G01J3/08

Abstract: Disclosed herein is a spectrophotometer which includes a source of radiation; an optical system for forming a beam of radiation from the source and directing it along a sample path and along a reference path, which paths come together at a location to form a combined path that impinges on a detector; a chopper mounted at said location for successively directing one or the other of the beams along the combined path or providing a blank chopper area for blocking radiation from the combined path; a monochromator having a grating and slits disposed in the combined path, the angular position of the grating being adjustable for passing selected successive wavelengths of radiant energy through the optical system; and controls are provided for controlling the movement of the grating and/or slits so that movement only occurs when the blank chopper area is blocking the combined path.

Abstract translation: 本文公开了一种分光光度计，其包括辐射源; 光学系统，用于形成来自光源的辐射束并且沿着参考路径引导辐射束，这些路径在一个位置聚集在一起以形成撞击检测器的组合路径; 安装在所述位置的斩波器，用于沿着所述组合路径连续引导所述光束中的一个或另一个，或者提供用于阻挡来自所述组合路径的辐射的空白切断器区域; 具有设置在组合路径中的光栅和狭缝的单色仪，所述光栅的角度位置是可调节的，用于通过所述光学系统传递选定的连续波长的辐射能; 并且提供控制以控制光栅和/或狭缝的移动，使得仅当空白切断器区域阻挡组合路径时才发生移动。

公开(公告)号：US4396288A

公开(公告)日：1983-08-02

申请号：US353466

申请日：1982-03-01

Applicant: David B. Helphrey

Inventor： David B. Helphrey

IPC: G01J3/06 ,  G01J3/12 ,  G01J3/50

CPC classification number: G01J3/12 ,  G01J3/06

Abstract: A method of identifying an operating position of a multiple-position filter changing mechanism situated in an optical path of a spectrophotometer by detecting and measuring a spectral characteristic(s) of light passed along the optical path to the spectrophotometer detector for one or more operating positions of the filter mechanism and comparing the measured spectral characteristic(s) with stored spectral characteristic information for one or more operating positions of the filter mechanism.

Abstract translation: 一种通过检测和测量沿着一条或多条操作位置的分光光度计检测器的光路的光谱特性来确定位于分光光度计的光路中的多位置滤波器改变机构的操作位置的方法 并将测量的光谱特性与存储的过滤机构的一个或多个操作位置的光谱特征信息进行比较。