公开(公告)号：US10444073B1

公开(公告)日：2019-10-15

申请号：US16447056

申请日：2019-06-20

Applicant: Hidetaka Noguchi ,  Junichi Azumi ,  Hidenori Kato ,  Masayuki Fujishima ,  Masashi Suematsu

Inventor： Hidetaka Noguchi ,  Junichi Azumi ,  Hidenori Kato ,  Masayuki Fujishima ,  Masashi Suematsu

IPC: G01J3/28 ,  G01J3/20 ,  G01J3/04 ,  G01J3/18

Abstract: A frame, a spectroscope, a spectrometry unit, and an image forming apparatus. The frame has hollow structure and includes at least four apertures including a first aperture, a second aperture, a third aperture through which light enters the frame, and a fourth aperture, a concave diffraction grating disposed at a position of the first aperture, and a movable reflector disposed at a position of the second aperture to reflect light dispersed by the concave diffraction grating and change a reflection angle of the reflected light. Through the fourth aperture of the frame, the light reflected by the movable reflector exits the frame. The spectroscope includes the frame, and the frame further includes an optical entrance disposed at a position of the third aperture, and an optical exit disposed at a position of the fourth aperture.

公开(公告)号：US09939320B2

公开(公告)日：2018-04-10

申请号：US15362037

申请日：2016-11-28

Applicant: Electronic Photonic IC Inc. (EPIC Inc.)

Inventor： Seng-Tiong Ho ,  Yingyan Huang

IPC: G01J3/28 ,  G01J3/20 ,  G01J3/04 ,  G01J3/02 ,  G02B6/293 ,  G02B5/18 ,  G01J3/18

CPC classification number: G01J3/20 ,  G01J3/0218 ,  G01J3/0237 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/04 ,  G01J3/18 ,  G01J3/1895 ,  G01J3/24 ,  G01J3/28 ,  G01J2003/1842 ,  G01J2003/1847 ,  G02B5/1861 ,  G02B6/29326 ,  G02B6/2938

Abstract: The present application discloses a system comprising a compact curved grating (CCG) and its associated compact curved grating spectrometer (COGS) or compact curved grating wavelength multiplexer/demultiplexer (WMDM) module and a method for making the same. The system is capable of achieving a very small (resolution vs. size) RS factor. The location of the entrance slit and detector can be adjusted in order to have the best performance for a particular design goal. The initial groove spacing is calculated using a prescribed formula dependent on operation wavelength. The location of the grooves is calculated based on two conditions. The first one being that the path-difference between adjacent grooves should be an integral multiple of the wavelength in the medium to achieve aberration-free grating focusing at the detector or a first anchor output slit even with large beam diffraction angle from the entrance slit or input slit, the second one being specific for a particular design goal of a curved-grating spectrometer.

公开(公告)号：US07869036B2

公开(公告)日：2011-01-11

申请号：US12196224

申请日：2008-08-21

Applicant: Kousuke Kajiki ,  Toshihiko Ouchi ,  Ryota Sekiguchi

Inventor： Kousuke Kajiki ,  Toshihiko Ouchi ,  Ryota Sekiguchi

IPC: G01J3/18 ,  G01J3/20 ,  G01J3/28

CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/20 ,  G01J3/36 ,  G01N21/31 ,  G01N21/3563 ,  G01N21/8901

Abstract: An analysis apparatus for analyzing a specimen comprises a spectral separator for dispersing spatially an electromagnetic wave introduced from the specimen into spectral components, a sensing element array containing plural sensing elements for sensing the spectral components of the electromagnetic wave dispersed spatially by the spectral separator, and a spectrum calculator for calculating the spectrum from the signal sensed by the sensing elements; the sensing element array having sensitivities different to each of the spectral components of the electromagnetic wave dispersed spatially by the spectral separator, and the spectral separator and the sensing element array being placed so as to receive the spectral components by each of the sensing elements at different incident angles.

Abstract translation: 用于分析试样的分析装置包括用于将从试样引入的电磁波空间分散到光谱分量中的光谱分离装置，包含用于感测由光谱分离器在空间上分散的电磁波的光谱分量的多个感测元件的感测元件阵列，以及 频谱计算器，用于根据由感测元件感测的信号计算频谱; 感测元件阵列具有与通过光谱分离器在空间上分散的电磁波的每个光谱分量不同的灵敏度，并且光谱分离器和感测元件阵列被放置以便通过每个感测元件在不同的方向上接收光谱分量 入射角度

公开(公告)号：US06839135B2

公开(公告)日：2005-01-04

申请号：US09832687

申请日：2001-04-11

Applicant: Thomas Hamm ,  Beno Mueller

Inventor： Thomas Hamm ,  Beno Mueller

IPC: G01J3/20 ,  G01J3/28 ,  H01L25/16 ,  H01L31/0232

CPC classification number: G01J3/20 ,  G01J3/28 ,  G01J3/2803 ,  H01L25/167 ,  H01L31/02325 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/00

Abstract: An optical device includes an imaging device for imaging an incident beam onto a focal surface, and a support element which includes at least one side having a shape corresponding to the focal surface, where the side is located on the focal surface. The invention also includes a sensor array in close contact with the side of the support element having the shape of the focal surface.

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：US4795257A

公开(公告)日：1989-01-03

申请号：US24237

申请日：1987-03-10

Applicant: David H. Tracy ,  Stephen A. Myers

Inventor： David H. Tracy ,  Stephen A. Myers

IPC: G01J3/36 ,  G01J3/20

CPC classification number: G01J3/36

Abstract: A Rowland circle-type polychromator with the Rowland circle arc pivotally connected to the concave grating. Separate adjustments are provides for shifting the spectral lines and focussing. A tie rod is used to adjust the focus of the spectral lines. Dectectors are predeterminedly spaced along the arc to simultaneously detect unique spectral lines for analysis of multiple elements contained in a single sample.

公开(公告)号：US4455088A

公开(公告)日：1984-06-19

申请号：US347417

申请日：1982-02-10

Applicant: Masato Koike

Inventor： Masato Koike

IPC: G01J3/18 ,  G01J3/20

CPC classification number: G01J3/1838 ,  G01J3/189

Abstract: A constant deviation monochromator with a holographically formed concave grating and entrance and exit slits positioned on opposite sides of the plane including the Rowland circle of the grating, wherein the grating has been formed by using two coherent light sources positioned on the same side of the Rowland plane, whereby aberrations and stray light are substantially reduced.

Abstract translation: 具有全息形成的凹形光栅的恒定偏差单色仪和位于包括光栅的罗兰圆的平面的相对侧上的入射和出射狭缝，其中通过使用位于罗兰的同一侧上的两个相干光源形成光栅 从而大大减少像差和杂散光。