公开(公告)号：US5233405A

公开(公告)日：1993-08-03

申请号：US788444

申请日：1991-11-06

Applicant: Kenneth R. Wildnauer ,  James R. Stimple ,  John D. Knight ,  Joseph N. West ,  Barry G. Broome

Inventor： Kenneth R. Wildnauer ,  James R. Stimple ,  John D. Knight ,  Joseph N. West ,  Barry G. Broome

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/18 ,  G01J2003/062 ,  G01J2003/069 ,  G01J2003/1819 ,  G01J2003/1828 ,  G01J3/0221 ,  G01J3/2889

Abstract: A double pass scanning monochromator for use in an optical spectrum analyzer includes an input optical fiber for emitting an input light beam, a diffraction grating for diffracting the input light beam to produce a spatially dispersed light beam, a slit for passing a selected portion of the dispersed light beam, a motor for rotating the diffraction grating, a shaft angle encoder for sensing grating position, and an output optical fiber. The light that passes through the slit is directed to the diffraction grating and is recombined by the diffraction grating to produce an output light beam. The light beam to be analyzed is incident on the diffraction grating during first and second passes. A polarization rotation device rotates the polarization components of the light beam by 90.degree. between the first and second passes so that the output of the monochromator is independent of the polarization of the input light beam. The output optical fiber is translated by a micropositioning assembly in a plane perpendicular to the output light beam during rotation of the diffraction grating to automatically track the output light beam and to provide optical chopping.

公开(公告)号：US5189486A

公开(公告)日：1993-02-23

申请号：US657096

申请日：1991-02-15

Applicant: Stefan Florek ,  Helmut Becker-Ross

Inventor： Stefan Florek ,  Helmut Becker-Ross

IPC: G01J3/18

CPC classification number: G01J3/1809 ,  G01J2003/1828 ,  G01J2003/1876

Abstract: The invention relates to an Echelle polychromator and can be employed in instruments for the spectrophotometric investigation of radiation sources. It is characterized in that, connected in series with the polychromator, there is a dispersive and polychromatic illuminating device, which is formed from an entrance slit arrangement, collimator optics, prism and camera optics, the entrance slit arrangements of the polychromator and of the illuminating device consisting of a main slit for limiting the bundle in the grating dispersion direction and a transverse slit for limiting the bundle in the direction of the dispersion of the prism in the Echelle polychromator. The whole of the wavelength range, which is to be processed by the polychromator, is imaged completely with negligible aberration on the transverse slit of the Echelle polychromator as a spectrum of the illuminating device. The dispersion of the illuminating device runs in the direction of the transverse dispersion of the prism of the Echelle polychromator. The dispersion-induced geometric width of the spectrum of the illuminating device for the whole of the wavelength region that is to be processed by the polychromator is less than the width of the transverse slit of the Echelle polychromator. Parts of the bundle of rays of the spectrum of the illuminating device are blocked out by the transverse slit of the Echelle polychromator.

Abstract translation: 本发明涉及一种Echelle多色变色器，可用于辐射源分光光度测量仪器中。 其特征在于，与多色板串联连接，存在分散和多色照明装置，其由入口狭缝布置，准直器光学器件，棱镜和照相机光学元件形成，多色调色剂的入射狭缝布置和照明 由用于限制光栅分散方向的束的主狭缝和用于限制束在Echelle多色分光器中的棱镜的分散方向的横向狭缝构成的装置。 作为照明装置的光谱，将通过多色
调色剂处理的整个波长范围在Echelle多色分光器的横向狭缝上以可忽略的像差完全成像。 照明装置的分散体沿着梯形多色板的棱镜的横向分散方向延伸。 用于由多色
调色板处理的整个波长区域的照明装置的光谱的色散引起的几何宽度小于Echelle多色
调色板的横向狭缝的宽度。 照明装置的光谱束的一部分光束被Echelle多色分光器的横向狭缝遮断。

公开(公告)号：US4986658A

公开(公告)日：1991-01-22

申请号：US341748

申请日：1989-04-21

Applicant: Yong W. Kim

Inventor： Yong W. Kim

IPC: G01J3/443 ,  G01J3/02 ,  G01J3/04 ,  G01J3/18 ,  G01J3/28 ,  G01N21/17 ,  G01N21/69 ,  G01N21/71 ,  G01N21/73

CPC classification number: G01J3/1809 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/04 ,  G01J3/28 ,  G01J3/2889 ,  G01N21/718 ,  G01J2003/1828 ,  G01N2021/695

Abstract: A method and apparatus for in-process transient spectroscopic analysis of a molten metal, wherein a probe containing a pulsed high-power laser producing a pulsed laser beam having a substantially triangular pulse waveshape is immersed in the molten metal and irradiates a representative quantity of the molten metal. The pulsed laser beam vaporizes a portion of the molten metal to produce a plasma plume having an elemental composition representative of the elemental composition of the molten metal. Before the plasma plume reaches thermal equilibrium shortly after termination of the laser pulse, a spectroscopic detector in the probe detects spectral line reversals, as caused by absorption of radiation emitted by the hotter inner portion of the plasma plume to relatively coller outer portions of the plasma plume, during a short first time window. Thereafter, when the afterglow plasma is in thermal equilibrium, a second spectroscopic detector also in the probe performs a second short time duration spectroscopic measurement. A rangefinder measures and controls the distance between the molten metal surface and the pulsed laser.

Abstract translation: 一种用于熔融金属的在线瞬态光谱分析的方法和装置，其中包含产生具有基本三角形脉冲波形的脉冲激光束的脉冲大功率激光的探针被浸入熔融金属中并照射代表量的 熔融金属。 脉冲激光束蒸发熔融金属的一部分以产生具有代表熔融金属的元素组成的元素组成的等离子体羽流。 在等离子体羽毛在激光脉冲终止之后不久达到热平衡之前，探针中的光谱检测器检测光谱线反转，这是由等离子体羽流的较热的内部部分的辐射吸收到等离子体的相对较冷的外部部分引起的 羽毛，在短暂的第一时间窗口。 此后，当余辉等离子体处于热平衡时，也在探针中的第二光谱检测器进行第二短时间光谱测量。 测距仪可测量和控制熔融金属表面与脉冲激光之间的距离。

公开(公告)号：US4737030A

公开(公告)日：1988-04-12

申请号：US698640

申请日：1985-02-06

Applicant: Paul H. Lee ,  Frederick B. Brown

Inventor： Paul H. Lee ,  Frederick B. Brown

IPC: G01J1/06 ,  G01J3/00 ,  G01J3/06 ,  G01J3/12 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32 ,  G01J3/14

CPC classification number: G01J3/32 ,  G01J2001/067 ,  G01J2003/064 ,  G01J2003/1208 ,  G01J2003/1828 ,  G01J2003/283 ,  G01J3/0264 ,  G01J3/027

Abstract: A computer controlled optical system for automatically acquiring and storing spectral radiance data for a multiplicity of targets. Several measurement modes are available for each target ranging from a single wavelength measurement to measurement over a plurality of discrete wavelengths. Stepping motive means prompted by computer instructions direct the apparatus to a given set of target coordinates.

Abstract translation: 一种用于自动获取和存储多个目标的光谱辐射数据的计算机控制的光学系统。 从单个波长测量到多个离散波长上的测量，每个目标都有几种测量模式。 步进动机意味着由计算机指令提示将装置引导到给定的一组目标坐标。

公开(公告)号：US4690559A

公开(公告)日：1987-09-01

申请号：US744861

申请日：1985-06-14

Applicant: Stefan Florek ,  Helmut Becker-Ross ,  Hans-Jurgen Dobschal ,  Joachim Mohr

Inventor： Stefan Florek ,  Helmut Becker-Ross ,  Hans-Jurgen Dobschal ,  Joachim Mohr

IPC: G01J3/12 ,  G01J3/02 ,  G01J3/04 ,  G01J3/18

CPC classification number: G01J3/1809 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/04 ,  G01J2003/1828

Abstract: The invention relates to an optical system for spectral analysis devices particularly for use in atomic emission spectroscopy in which the aberrations, astigmatis and coma are compensated separately, comprising two concave spherical reflectors adjacently arranged and having their vertices equidistantly located relative to a center of a dispersing member. The latter has a dispersion plane at right angles to the dispersing structure of the dispersing member and to its surface, the vertices are located in said dispersion plane. The center beams originating from an excitation light source are reflected at the reflectors in reflection planes which are at right angles to the dispersion plane. The light entrance of the optical system comprises two slits the images of which coincide in a focal plane. The center of the focal plane and the light entrance have a same distance to the dispersion plane and are located on different sides of the latter.

Abstract translation: 本发明涉及一种用于光谱分析装置的光学系统，其特别用于原子发射光谱法，其中像差，散光和昏迷被单独补偿，其包括相邻布置的两个凹球形反射器，并且其顶点相对于分散的中心等距定位 会员。 后者具有与分散构件的分散结构成直角且与其表面成直角的分散平面，顶点位于所述分散平面中。 源自激发光源的中心光束在与分散平面成直角的反射面中的反射器处反射。 光学系统的光入射包括两个狭缝，其图像在焦平面上重合。 焦平面和光入口的中心具有与分散平面相同的距离并且位于后者的不同侧。

公开(公告)号：US4669878A

公开(公告)日：1987-06-02

申请号：US876658

申请日：1986-06-18

Applicant: Daniel J. Meier

Inventor： Daniel J. Meier

IPC: G01J1/42 ,  G01J3/02 ,  G01J3/04 ,  G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/28 ,  G01J3/433 ,  G01N21/25 ,  G01J3/42

CPC classification number: G01J1/4257 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/04 ,  G01J3/10 ,  G01N21/253 ,  G01J2003/1204 ,  G01J2003/1828 ,  G01J2003/2866 ,  G01J3/433 ,  G01N2201/08 ,  Y10T436/11

Abstract: An automated chemistry-testing system for analyzing serum samples in which a controlled intensity, monochromatic light beam of substantially any desired wavelength can be selectively directed through any one of a plurality of test solutions in a spectrophotometer. The system operates at very high speed, permitting serum test solutions to be scanned with a multiplicity of wavelengths of light to provide extensive data on the characteristics of the serum. The invention also provides substantial flexibility and permits a wide variety of test to be more reliably performed.

Abstract translation: 用于分析血清样品的自动化学测试系统，其中基本上任何所需波长的受控强度的单色光束可以选择性地导向通过分光光度计中的多个测试溶液中的任何一个。 该系统以非常高的速度运行，允许用多种波长的光扫描血清测试溶液，以提供关于血清特征的广泛数据。 本发明还提供了实质的灵活性，并且允许更可靠地执行各种各样的测试。

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：US3922089A

公开(公告)日：1975-11-25

申请号：US34098073

申请日：1973-03-14

Applicant: DANIELSSON NILS ALLAN ,  LINDBLOM KARL PETER

Inventor： DANIELSSON NILS ALLAN ,  LINDBLOM KARL-PETER CHRISTIAN

IPC: G01J3/00 ,  G01J3/12 ,  G01J3/18

CPC classification number: G01J3/1809 ,  G01J2003/1204 ,  G01J2003/1828

Abstract: A method and apparatus by which spectral orders produced by a main grating are separated and focused on a focal surface of restricted size, using a combination of grating and prism for the separation of spectral orders, which provides for a relatively uniform spacing of the spectral orders over the entire wave length range within the restricted focal surface.

Abstract translation: 一种方法和装置，通过该方法和装置，由主光栅产生的光谱指令被分离并聚焦在受限尺寸的焦面上，使用光栅和棱镜的组合来分离光谱级，这提供了光谱级的相对均匀的间隔 在受限焦点表面内的整个波长范围内。