公开(公告)号：EP0502413A3

公开(公告)日：1993-02-10

申请号：EP92103285.0

申请日：1992-02-26

Applicant: IMO INDUSTRIES Inc.

Inventor： Krupa, Robert J. ,  Owen, Edward E. ,  Shiller, Stanley L.

IPC: G01J3/06

CPC classification number: G01J3/06 ,  G01J2003/063 ,  G01J2003/066

Abstract: A scanning monochromator uses a pulse-driven micro-stepping motor (20) to drive a spectral-dispersion element (33) via a reduction-gear harmonic drive (21). The motor (20) is directly coupled to the input hub of the reduction-gear drive (21), and the output hub of the reduction-gear drive directly supports the spectral-dispersion element (33). By selecting a motor (20) with a great number of steps per revolution, and a harmonic drive (21) with a great reduction ratio, a resolution of 5 million pulsed steps is available, per single rotation of the output hub of the reduction-gear drive. This translates into more than 600,000 incremental angular-displacement steps over a usable 45° range of dispersion-element rotation.

Abstract translation: 扫描单色仪使用脉冲驱动微步进电动机（20）经由减速齿轮谐波驱动器（21）驱动光谱色散元件（33）。 马达（20）直接联接到减速齿轮传动装置（21）的输入轮毂上，并且减速齿轮传动装置的输出轮毂直接支撑分光分散元件（33）。 通过选择每转大量步进的电动机（20）和具有大的减速比的谐波驱动（21），可以在减速机的输出轮毂的每次旋转中提供500万个脉冲步进的分辨率， 齿轮传动。 这可以在可用的45°范围的分散体旋转中转化为超过60万个增量角位移步长。

公开(公告)号：EP0445934B1

公开(公告)日：1995-05-03

申请号：EP91301358.7

申请日：1991-02-20

Applicant: IMO INDUSTRIES INC.

Inventor： Krupa, Robert J. ,  Owen, Calvan R.

IPC: G01J3/28

CPC classification number: G01J3/1809 ,  G01J3/2803 ,  G01J2003/1814 ,  G02B17/0621

公开(公告)号：EP0502413A2

公开(公告)日：1992-09-09

申请号：EP92103285.0

申请日：1992-02-26

Applicant: IMO INDUSTRIES Inc.

Inventor： Krupa, Robert J. ,  Owen, Edward E. ,  Shiller, Stanley L.

IPC: G01J3/06

CPC classification number: G01J3/06 ,  G01J2003/063 ,  G01J2003/066

Abstract: A scanning monochromator uses a pulse-driven micro-stepping motor (20) to drive a spectral-dispersion element (33) via a reduction-gear harmonic drive (21). The motor (20) is directly coupled to the input hub of the reduction-gear drive (21), and the output hub of the reduction-gear drive directly supports the spectral-dispersion element (33). By selecting a motor (20) with a great number of steps per revolution, and a harmonic drive (21) with a great reduction ratio, a resolution of 5 million pulsed steps is available, per single rotation of the output hub of the reduction-gear drive. This translates into more than 600,000 incremental angular-displacement steps over a usable 45° range of dispersion-element rotation.

Abstract translation: 扫描单色仪使用脉冲驱动微步进电动机（20）经由减速齿轮谐波驱动器（21）驱动光谱色散元件（33）。 马达（20）直接联接到减速齿轮传动装置（21）的输入轮毂上，并且减速齿轮传动装置的输出轮毂直接支撑分光分散元件（33）。 通过选择每转大量步进的电动机（20）和具有大的减速比的谐波驱动（21），可以在减速机的输出轮毂的每次旋转中提供500万个脉冲步进的分辨率， 齿轮传动。 这可以在可用的45°范围的分散体旋转中转化为超过60万个增量角位移步长。

公开(公告)号：EP0445934A3

公开(公告)日：1992-01-08

申请号：EP91301358.7

申请日：1991-02-20

Applicant: IMO INDUSTRIES INC.

Inventor： Krupa, Robert J. ,  Owen, Calvan R.

IPC: G01J3/28

CPC classification number: G01J3/1809 ,  G01J3/2803 ,  G01J2003/1814 ,  G02B17/0621

Abstract: A double-pass two-dimensional spectrometer utilizes a telescope which contains only reflective optical components and is therefore free of chromatic aberrations. The telescope is so used in combination with dispersing optics (17,18) as to allow double-pass use of the combination. The telescope has a state of correction such that, for example, an image which is diffraction-limited at 800nm is produced over a flat field, corresponding to a wide-angle object coverage. This state of correction is accomplished with only two mirrors (10,11), one of which is a conic (e.g., hyperbolic) surface of revolution, while the other is a reflecting generalized polynomial aspheric corrector; and both mirrors are rotationally symmetric surfaces of revolution, each about its own axis of revolution. The double-pass nature of the system allows for a compact optical system consisting of only two reflecting surfaces, plus the dispersing optics, and there are no internal obscurations, thus avoiding negative effects of diffraction off of internal structures. The invention is shown for its applicability to each of several types of spectrometer-design configurations.

公开(公告)号：EP0445934A2

公开(公告)日：1991-09-11

申请号：EP91301358.7

申请日：1991-02-20

Applicant: IMO INDUSTRIES INC.

Inventor： Krupa, Robert J. ,  Owen, Calvan R.

IPC: G01J3/28

CPC classification number: G01J3/1809 ,  G01J3/2803 ,  G01J2003/1814 ,  G02B17/0621

Abstract: A double-pass two-dimensional spectrometer utilizes a telescope which contains only reflective optical components and is therefore free of chromatic aberrations. The telescope is so used in combination with dispersing optics (17,18) as to allow double-pass use of the combination. The telescope has a state of correction such that, for example, an image which is diffraction-limited at 800nm is produced over a flat field, corresponding to a wide-angle object coverage. This state of correction is accomplished with only two mirrors (10,11), one of which is a conic (e.g., hyperbolic) surface of revolution, while the other is a reflecting generalized polynomial aspheric corrector; and both mirrors are rotationally symmetric surfaces of revolution, each about its own axis of revolution. The double-pass nature of the system allows for a compact optical system consisting of only two reflecting surfaces, plus the dispersing optics, and there are no internal obscurations, thus avoiding negative effects of diffraction off of internal structures. The invention is shown for its applicability to each of several types of spectrometer-design configurations.

Abstract translation: 双通二维光谱仪使用仅包含反射光学部件的望远镜，因此没有色差。 望远镜与分散光学元件（17,18）结合使用，以允许组合的双程使用。 望远镜具有校正状态，例如，对应于广角对象覆盖的平坦场产生800nm衍射限制的图像。 这种校正状态仅用两个反射镜（10,11）完成，其中一个反射镜是圆锥曲面（例如双曲面），另一个是反射广义多项式非球面校正器; 并且两个反射镜都是旋转对称的旋转表面，每个都围绕它自己的旋转轴线。 该系统的双重特性允许由只有两个反射表面加上分散光学元件组成的紧凑型光学系统，并且没有内部遮蔽，从而避免了内部结构的衍射的负面影响。 示出了本发明适用于几种类型的光谱仪设计配置中的每一种。