公开(公告)号：US5914997A

公开(公告)日：1999-06-22

申请号：US990215

申请日：1997-12-12

Applicant: Walterus A. L. A. Van Egeraat

Inventor： Walterus A. L. A. Van Egeraat

IPC: G01J3/20 ,  G01N23/20 ,  G01N23/205 ,  G01N23/207 ,  G01N23/223 ,  G21K1/06 ,  G01N23/00

CPC classification number: G01N23/20008 ,  G01J3/20 ,  G01N23/2055

Abstract: An imaging optical system having a Rowland geometry can be used in a spectrometer for X-ray fluorescence. For the focusing of the X-ray beam emanating from the specimen to be analyzed use is made of a curved analyzer crystal 28 whose radius of curvature may be variable, as in the case of a crystal surface 29 in the form of a logarithmic spiral 40. If such an analyzer crystal is to be made sufficiently large so as to achieve adequate intensity in the X-ray detector, a part of the crystal would have to be given a radius of curvature which is smaller than permissible so as to avoid fracturing of the crystal. In accordance with the invention, a first part 40 of the reflective surface 29 has a radius of curvature which is dependent on the location on the crystal whereas another part 42 of the reflective surface has a constant radius of curvature 44. A crystal part having a constant radius of curvature exhibits angular deviations, but for as long as these angular deviations are smaller than a given (not very low) limit value, they can be ignored in relation to other, larger deviations of the log spiral part. Such larger deviations occur notably when a multilayer mirror is chosen for the analyzer crystal 28.

Abstract translation: 具有Rowland几何形状的成像光学系统可用于X射线荧光的光谱仪中。 对于从要分析的样品发出的X射线束的聚焦，使用曲率分析器晶体28，其曲率半径可以是可变的，如在对数螺旋形40的形式的晶体表面29的情况下 如果要使这种分析器晶体足够大以在X射线检测器中获得足够的强度，那么晶体的一部分必须具有比允许的小的曲率半径，以避免压裂 水晶。 根据本发明，反射表面29的第一部分40具有取决于晶体上的位置的曲率半径，而反射表面的另一部分42具有恒定的曲率半径44.具有 恒定的曲率半径表现出角度偏差，但是只要这些角度偏差小于给定（非常低）的极限值，它们可以相对于对数螺旋部分的其他较大偏差而被忽略。 当为分析器晶体28选择多层反射镜时，这种较大的偏差显着出现。

公开(公告)号：US5815261A

公开(公告)日：1998-09-29

申请号：US838298

申请日：1997-04-16

Applicant: Neil H. Brooks ,  Sergey N. Tugarinov ,  Nicolae N. Naumenko ,  Torkil H. Jensen

Inventor： Neil H. Brooks ,  Sergey N. Tugarinov ,  Nicolae N. Naumenko ,  Torkil H. Jensen

IPC: G01J3/20 ,  G01J3/28 ,  G01J3/457 ,  G01J3/04

CPC classification number: G01J3/20 ,  G01J3/457 ,  G01J2003/2866 ,  G01J3/0229 ,  G01J3/0235

Abstract: A spectrometer that determines a spectral correlation between an optical signal and a reference spectra over a broad spectral range while maintaining a relatively high resolution. The spectrometer uses a mask that has high resolution slits at wavelengths corresponding to the reference spectra. Relative oscillatory movement is induced between the mask and the imaged spectra of the optical signal is induced and the light passing through the slits is collected by an optical sensor. A lock-in amplifier monitors a signal from the optical sensor as well as a signal representative of the oscillatory movement and determines a correlation between them.

Abstract translation: 一种光谱仪，其在保持相对高的分辨率的同时确定光信号与宽光谱范围上的参考光谱之间的光谱相关性。 光谱仪使用在对应于参考光谱的波长处具有高分辨率狭缝的掩模。 在掩模之间引起相对振荡运动，并且感光的光信号的成像光谱被感应，并且通过狭缝的光被光学传感器收集。 锁定放大器监视来自光学传感器的信号以及表示振荡运动的信号，并确定它们之间的相关性。

公开(公告)号：US5182609A

公开(公告)日：1993-01-26

申请号：US690729

申请日：1991-04-24

Applicant: Stefan Florek ,  Reiner Guther ,  Helmut Becker-Ross

Inventor： Stefan Florek ,  Reiner Guther ,  Helmut Becker-Ross

IPC: G01J3/18 ,  G01J3/20

CPC classification number: G01J3/18 ,  G01J3/20

Abstract: The invention relates to a spectrometer useful in analytical spectroscopy. The spectrometer has an imaging diffraction grating, a planar receiver system, and an element for flattening the image field, wherein the improvement comprises that a body of low refractive power and perceptible secondary spectrum is used as the element for flattening the image field, said body having at least two optically active surfaces, and is disposed between the entry slit and the diffraction grating.

Abstract translation: 本发明涉及可用于分析光谱学中的光谱仪。 光谱仪具有成像衍射光栅，平面接收器系统和用于平坦化图像场的元件，其中改进包括使用低折射力的主体和可感知的二次光谱作为使图像场平坦化的元件，所述主体 具有至少两个光学活性表面，并且设置在入口狭缝和衍射光栅之间。

公开(公告)号：US5018856A

公开(公告)日：1991-05-28

申请号：US428529

申请日：1989-10-30

Applicant: James M. Harnly ,  Gary P. Moulton ,  Thomas C. O'Haver

Inventor： James M. Harnly ,  Gary P. Moulton ,  Thomas C. O'Haver

IPC: G01J3/20 ,  G01J3/28 ,  G01J3/42 ,  G01N21/31 ,  G01N21/74

CPC classification number: G01J3/1809 ,  G01J3/20 ,  G01J3/42 ,  G01N21/3103 ,  G01J3/2803 ,  G01N21/74

Abstract: The instant invention relates to a process and apparatus for atomic absorption analysis, utilizing: atomization of a sample (containing one or more elements), illuminating the atomized sample with a continuum light source to produce a resultant light, directing the resultant light through a light dispersing means, detection of light at the focal plane of the light dispersing means using an integrating array detector (e.g. linear photodiode array) for converting the incident light into amplified electrical signals, blocking the incident light from striking the detector means and during this blocking utilizing the detector means to convert integrated intensities into amplified electrical signals, and deriving from these signals a value proportional to concentration. The present invention permits the aforementioned analysis to be performed at a very high rate i.e. at least 40 times per second.

Abstract translation: 本发明涉及用于原子吸收分析的方法和装置，其利用：样品的雾化（含有一种或多种元素），用连续光源照射雾化样品以产生所得光，将所得光引导通过光 分散装置，使用用于将入射光转换成放大的电信号的积分阵列检测器（例如线性光电二极管阵列）检测光分散装置的焦平面处的光，阻止入射光撞击检测器装置，并在该阻挡期间利用 检测器意味着将集成的强度转换成放大的电信号，并从这些信号中得出与浓度成比例的值。 本发明允许以非常高的速率进行上述分析，即每秒至少40次。

公开(公告)号：US4298797A

公开(公告)日：1981-11-03

申请号：US10820

申请日：1979-02-09

Applicant: Claude R. Bernard ,  Bernard Daigne ,  Francois Girard

Inventor： Claude R. Bernard ,  Bernard Daigne ,  Francois Girard

IPC: G01J3/18 ,  G01J3/20 ,  G01J3/36 ,  G01J1/42 ,  G01J3/28

CPC classification number: G01J3/20 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/36

Abstract: A spectrograph usable more particularly in the far ultraviolet range. It comprises along the Rowland circle measuring blocks including photo-detectors. Said measuring blocks are movably mounted along a guiding rail materializing the Rowland circle. Motion means are provided for the displacement of the various measuring blocks along the guiding rail. Transmission means between the motion means and a measuring block constantly direct the latter towards the diffraction grating.

Abstract translation: 更特别可用于远紫外线范围的光谱仪。 它包括罗兰圆测量块，包括光电探测器。 所述测量块沿着实现罗兰圆的导轨可移动地安装。 提供运动装置用于沿着导轨移动各种测量块。 运动装置和测量块之间的传输装置不断地将其指向衍射光栅。

公开(公告)号：US3495909A

公开(公告)日：1970-02-17

申请号：US3495909D

申请日：1965-12-17

Applicant: NORMAN N AXELROD

Inventor： AXELROD NORMAN N

IPC: G01J3/06 ,  G01J3/20

CPC classification number: G01J3/06 ,  G01J3/20

公开(公告)号：EP2502038A1

公开(公告)日：2012-09-26

申请号：EP10793008.3

申请日：2010-11-18

Applicant: Horiba Jobin Yvon SAS

Inventor： FRETEL, Emmanuel ,  CASARES, Marco ,  BONNOT, Olivier ,  ROGERIEUX, Olivier

IPC: G01J3/20 ,  G01J3/36

CPC classification number: G01J3/36 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0278 ,  G01J3/20

Abstract: The invention relates to an optical spectrometer having concave diffraction grating including an input slot (3) suitable for receiving and forming an incident beam (5) including at least one wavelength λ, a concave diffraction grating (1) suitable for receiving the incident beam (5) with an angle of incidence α and for diffracting said beam in order to form a diffracted beam forming an angle β(λ) with the normal of the grating (1), at least one concave mirror (8, 8a, 8b, 8c) made up of a portion of a cylinder with a circular cross-section having a radius r
cyι , said mirror (8, 8a, 8b, 8c) being suitable for receiving the diffracted beam (6, 6a, 6b, 6c) in the direction β(λ) and for focusing said beam on at least one output slot (4, 4a, 4b, 4c), and at least one photodetector (9, 9a, 9b, 9c) optically coupled to an output slot (4, 4a, 4b, 4c) in order to measure the beam diffracted and focused by a cylindrical mirror (8, 8a, 8b, 8c). According to the invention, said mirror (8, 8a, 8b, 8c) is located on a folium curve at a distance d(λ) in the direction of the diffraction grating (1) relative to the focus point of the diffracted beam (6, 6a, 6b, 6c) in the direction β(λ) on the Rowland circle (2), such that: d(λ) = r
cyl , / 2
3/2 / cos(β).

公开(公告)号：EP1825234B8

公开(公告)日：2009-10-21

申请号：EP05813612.8

申请日：2005-11-04

Applicant: Spectro Analytical Instruments GmbH

Inventor： JOOSTEN, Heinz-Gerd

IPC: G01J3/443 ,  G01J3/28 ,  G01N21/71 ,  G01J3/30 ,  G01J3/04

CPC classification number: G01N21/274 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/0237 ,  G01J3/027 ,  G01J3/04 ,  G01J3/20 ,  G01J3/28

Abstract: The invention relates to spectrometer optics comprising a beam path from a radiation source to a number of electro-optical sensors without local resolution, the beam path having an entry slot (7), a dispersive element (8) and a number of exit slots (9) that are positioned on a focal curve. In addition, said optics are provided with a first actuator for modifying the angle of incidence e (23) between the beam from the entry slot to the dispersive element and from the normal (13) to the dispersive element, a number of second actuators for displacing the exit slots tangentially to the focal curve (6) or in a peripheral direction along the focal curve (6) and a controller, which is designed to control the first actuator and the second actuators in order to carry out a calibration.

Abstract translation: 本发明涉及光谱仪光学器件，其包括从辐射源到没有局部分辨率的多个电光学传感器的光束路径，光束路径具有入口槽（7），色散元件（8）和多个出口槽 9）位于焦点曲线上。 此外，所述光学器件设置有第一致动器，用于修改从入口槽到色散元件的光束与从法线（13）到色散元件的光束之间的入射角e（23），多个第二致动器 沿着焦点曲线（6）沿切向于焦点曲线（6）或在周向方向上移动出口槽;以及控制器，其被设计为控制第一致动器和第二致动器以执行校准。

公开(公告)号：EP1825234B1

公开(公告)日：2009-09-02

申请号：EP05813612.8

申请日：2005-11-04

Applicant: Spectro Analytical Instruments

Inventor： JOOSTEN, Heinz-Gerd

IPC: G01J3/443 ,  G01J3/28 ,  G01N21/71 ,  G01J3/30 ,  G01J3/04

CPC classification number: G01N21/274 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/0237 ,  G01J3/027 ,  G01J3/04 ,  G01J3/20 ,  G01J3/28

Abstract: The invention relates to spectrometer optics comprising a beam path from a radiation source to a number of electro-optical sensors without local resolution, the beam path having an entry slot (7), a dispersive element (8) and a number of exit slots (9) that are positioned on a focal curve. In addition, said optics are provided with a first actuator for modifying the angle of incidence e (23) between the beam from the entry slot to the dispersive element and from the normal (13) to the dispersive element, a number of second actuators for displacing the exit slots tangentially to the focal curve (6) or in a peripheral direction along the focal curve (6) and a controller, which is designed to control the first actuator and the second actuators in order to carry out a calibration.

公开(公告)号：EP1839038A1

公开(公告)日：2007-10-03

申请号：EP05803479.4

申请日：2005-11-04

Applicant: Spectro Analytical Instruments

Inventor： JOSSTEN, Heinz-Gerd

IPC: G01N21/67 ,  G01J3/443

CPC classification number: G01J3/28 ,  G01J3/20 ,  G01J3/443 ,  G01N21/67

Abstract: The invention relates to a method for the spectral analysis of metallic samples, said method comprising the following steps: (a) a spectrum of an unknown sample with a number of preset excitation parameters is recorded; (b) the spectrum is compared with the stored spectra of a number of control samples; (c) the control samples are determined by the best concordance of the spectra; (d) the excitation parameters stored for the best successive control samples determined in step (c) are set; (e) the spectrum of the unknown sample with the excitation parameters set in step (d) is recorded; and (f) the intensity ratios of analysis lines stored for the control sample and internal standards of the spectrum recorded in step (e) are calculated.