公开(公告)号：US4575242A

公开(公告)日：1986-03-11

申请号：US542151

申请日：1983-10-14

Applicant: Osamu Akiyama ,  Rikuo Hira

Inventor： Osamu Akiyama ,  Rikuo Hira

IPC: G01J3/04 ,  G01J3/18

CPC classification number: G01J3/04

Abstract: A slit mechanism for use in a monochromator which is capable of changing not only the slit width but also the slit height. The slit mechanism is provided with a plurality of pairs of slits formed in a disk rotatable about an axis. The two slits in each pair have the same width and the same height, and each pair of slits have a different width from those of the other pairs of slits. The slit mechanism is further provided with at least one additional pair of slits having the same width as the width of, and a different height from the height of, a predetermined pair of the plurality of pairs of slits. All the pairs of slits are arranged circumferentially of a circle on the disk concentric with the axis of rotation of the disk, so that each pair of slits are positioned diametrically opposite to each other on the circle so as to serve as an entrance and an exit slit, respectively, for the monochromator. The slits may also be arranged on a disk circumferentially of two circles of different diameters concentric with each other and the axis of rotation of the disk, so that one slit in each pair is on one of the two circles while the other slit in the pair is on the other circle diametrically opposite to the one slit.

Abstract translation: 一种用于单色仪的狭缝机构，其不仅可以改变狭缝宽度，而且可以改变狭缝高度。 狭缝机构设置有形成在可绕轴线旋转的盘中的多对狭缝。 每对中的两个狭缝具有相同的宽度和相同的高度，并且每对狭缝具有与其它成对狭缝不同的宽度。 狭缝机构还设置有至少一对另外的一对狭缝，该对狭缝具有与预定对的多对缝隙的宽度相同的宽度和与其高度不同的高度。 所有成对的狭缝在圆盘周向上布置成与盘的旋转轴线同心的圆周，使得每对狭缝在圆周上彼此径向相对地定位，以用作入口和出口 分别用于单色仪。 狭缝也可以布置在彼此同心的两个不同直径的圆的圆盘上，并且盘的旋转轴线，使得每对中的一个狭缝在两个圆中的一个上，而另一个狭缝在该对中 在与该狭缝完全相反的另一个圆上。

公开(公告)号：US4573793A

公开(公告)日：1986-03-04

申请号：US564889

申请日：1983-12-23

Applicant: Kikuo Sasaki

Inventor： Kikuo Sasaki

IPC: G01J3/04 ,  G01J3/06 ,  G01J3/28 ,  G01J3/32 ,  G01N21/27 ,  G01N21/31 ,  G01J3/18

CPC classification number: G01J3/28 ,  G01J3/04 ,  G01J3/06 ,  G01J2003/2866

Abstract: A spectrophotometer wherein in order to set the instrument to a designated wavelength, the monochromator is first set to the designated wavelength position intended to be as such on the monochromator, and the entrance and exit slits of the monochromator are widened so as to measure a beam of light having a spectrum with an emission line at the designated wavelength, and the sensitivity of the light measuring circuit is so adjusted that the output therefrom is kept at a predetermined constant level, and then the slits are narrowed, whereupon wavelength scanning is conducted over a range of wavelengths including the designated wavelength so as to detect a peak in the emission line spectrum, and then the dispersing element is set to the detected peak position.A microcomputer controls the above operation in a sequential manner.

Abstract translation: 一种分光光度计，其中为了将仪器设定为指定的波长，单色仪首先被设置为在单色仪上预定为这样的指定波长位置，并且单色仪的入射和出射狭缝被加宽以便测量光束 具有在指定波长处具有发射线的光谱的光，并且调整光测量电路的灵敏度，使得其输出保持在预定的恒定水平，然后狭缝变窄，于是进行波长扫描 包括指定波长的波长范围，以便检测发射线光谱中的峰值，然后将分散元件设置为检测到的峰值位置。 微型计算机以顺序方式控制上述操作。

公开(公告)号：US4480913A

公开(公告)日：1984-11-06

申请号：US340158

申请日：1982-01-18

Applicant: John N. Dukes ,  Charles E. Bryson, III ,  Lynn Weber ,  Mark Morganthaler

Inventor： John N. Dukes ,  Charles E. Bryson, III ,  Lynn Weber ,  Mark Morganthaler

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/08 ,  G01J3/42

CPC classification number: G01J3/02 ,  G01J3/0289 ,  G01J3/04 ,  G01J3/08 ,  G01J3/42

Abstract: A spectrophotometer optical section is presented which employs a fine positioning beam director which corrects for any deflections of the output beam path and accurately positions the optical beam on the detector slit of the spectrograph. The detector slit is chosen to have a size slightly smaller than the size of the optical beam at the detector slit to have high slit throughput without introducing spurious absorption. The sample cells need not be rigidly mounted thereby enabling use of a sample cell and cell holder which allows quick, easy interchange of cells.

Abstract translation: 提出了一种分光光度计光学部件，其采用精确的定位光束导向器，其校正输出光束路径的任何偏转，并将光束精确地定位在光谱仪的检测器狭缝上。 检测器狭缝被选择为具有比检测器狭缝处的光束尺寸稍小的尺寸，以具有高狭缝通量而不引入杂散吸收。 样品池不需要刚性地安装，从而可以使用样品池和电池座，从而可以快速，方便地更换电池。

公开(公告)号：US4345840A

公开(公告)日：1982-08-24

申请号：US138306

申请日：1980-04-08

Applicant: Alexander F. H. Goetz ,  Richard A. Machida

Inventor： Alexander F. H. Goetz ,  Richard A. Machida

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/12 ,  G01J3/28 ,  G01J3/36 ,  G01J3/42 ,  G01N21/31 ,  G01J3/50 ,  G01N21/25

CPC classification number: G01N21/314 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0294 ,  G01J3/04 ,  G01J3/28 ,  G01J3/36 ,  G01J2003/1217 ,  G01J2003/123 ,  G01J2003/2833 ,  G01J2003/425 ,  G01J3/2803

Abstract: A hand-held instrument is provided to compare information from selected infrared and visible bands in the 0.4 to 2.5 micrometer range, to perform ratioing via a dividing circuit (17) and to directly read out, via a display system (18), ratio values in a continuous digital display. The dual-beam, ratioing radiometer contains two optical trains (10, 12), each having two repeater lenses (L1a, L1b and L2a, L2b) and a cooled lead sulfide detector (D1, D2). One of the trains (10) is pivotal to facilitate measurements at distances ranging from about 1 meter to infinity. The optical trains are intersected by a set of two coaxially-mounted filter wheels (F1, F2), each containing up to five interference filters and slits to pass radiation filtered by the other. Filters with band passes as narrow as 0.01 micrometer are used in the region 0.4 to 2.5 micrometers. The total time for a calibration and measurement is only a few seconds. It is known from previous field studies using prior art devices, that materials, e.g., clay minerals, and carbonate minerals such as limestone, have unique spectral properties in the 2.0 to 2.5 micrometer region. Using properly chosen spectral filters, and ratioing the signals to remove the effect of topography on the brightness measured, the instrument can be used for real-time analysis of reflecting materials in the field. Other materials in the broader range of 0.4 to 2.5 micrometers (and even beyond) could be similarly identified once the reflectance spectrum of the material is established by any means.

Abstract translation: 提供手持式仪器以比较在0.4至2.5微米范围内的所选红外线和可见波段的信息，通过分频电路（17）执行比例，并通过显示系统（18）直接读出比率值 在连续的数字显示。 双光束比例辐射计包含两个光学列车（10,12），每个具有两个中继器透镜（L1a，L1b和L2a，L2b）和冷却的硫化铅检测器（D1，D2）。 火车（10）中的一个是关键的，以便于距离范围从大约1米到无穷远的测量。 光学列车由一组两个同轴安装的滤光轮（F1，F2）相交，每个滤光轮最多包含五个干涉滤光片和狭缝，以通过另一个过滤的辐射。 带宽为0.01微米的滤光片在0.4至2.5微米的范围内使用。 校准和测量的总时间只有几秒钟。 从使用现有技术装置的先前现场研究中已知，例如粘土矿物和碳酸盐矿物如石灰石的材料在2.0至2.5微米的区域中具有独特的光谱性质。 使用适当选择的光谱滤波器，并比较信号以消除地形对测量的亮度的影响，仪器可用于现场反射材料的实时分析。 一旦通过任何方式建立材料的反射光谱，可以类似地识别在0.4至2.5微米（甚至更远）的更宽范围内的其它材料。

公开(公告)号：US4325634A

公开(公告)日：1982-04-20

申请号：US89084

申请日：1979-10-29

Applicant: Shigeo Tohyama

Inventor： Shigeo Tohyama

IPC: G01J3/04 ,  G01J3/28 ,  G06F17/40 ,  G01J3/12 ,  G01J3/18

CPC classification number: G01J3/04 ,  G01J2003/2866

Abstract: At least one of the entrance slit and the exit slit of a monochromator is capable of being opened or closed. The light issued from the exit slit when the slit width is changed is detected by a light detector. The slit width is calibrated when the ratio between the maximum value of the output of the light detector and the output of the light detector with the slit being gradually closed subsequently reaches a predetermined value, in other words, when a predetermined narrowness of the slit is attained. The slit width is controlled by a pulse motor or the like. The pulses supplied to the pulse motor are counted by a counter. At the time of slit width calibration, a value corresponding to the particular slit width is set in the counter, thus performing the slit width calibration.

Abstract translation: 单色器的入口狭缝和出口狭缝中的至少一个能够被打开或关闭。 当狭缝宽度改变时从出口狭缝发出的光由光检测器检测。 当光检测器的输出的最大值与狭缝​​逐渐闭合的光检测器的输出之间的比率随后达到预定值时，狭缝宽度被校准，换句话说，当狭缝的预定狭缝为 达到了 狭缝宽度由脉冲电机等控制。 提供给脉冲电机的脉冲由计数器计数。 在狭缝宽度校准时，在计数器中设置与特定狭缝宽度相对应的值，从而进行狭缝宽度校准。

公开(公告)号：US4172637A

公开(公告)日：1979-10-30

申请号：US863769

申请日：1977-12-23

Applicant: Howard J. Sloane

Inventor： Howard J. Sloane

IPC: G01J3/04 ,  G05D25/00

CPC classification number: G01J3/04

Abstract: Apparatus compensating for "aperturing effects" produced when a sample holding aperture is incorporated in the sample beam of a conventional dual beam spectrophotometer to allow examination of very small size samples. Such effects usually take the form of undesired variations in the base line output of the spectrophotometer at wavelengths where the spectrophotometer slits open wider than the sample aperture in an attempt to produce a constant energy scan over a given spectrum. The apparatus comprises a second aperture optically equivalent to the sample aperture and located at a slit image point in a common beam portion of the spectrophotometer.

Abstract translation: 当将样品保持孔结合到常规双光束分光光度计的样品束中以允许检查非常小的样品时，产生的“开孔效应”的装置。 这种影响通常采用在分光光度计狭缝比样品孔更宽的波长处的分光光度计的基线输出的不希望的变化的形式，以试图在给定光谱上产生恒定的能量扫描。 该装置包括光学上等同于样品孔并位于分光光度计的共射束部分中的狭缝图像点处的第二孔。

公开(公告)号：US4123161A

公开(公告)日：1978-10-31

申请号：US788578

申请日：1977-04-18

Applicant: George J. Pappas

Inventor： George J. Pappas

IPC: G01J3/04 ,  G01J3/14 ,  G01J3/28 ,  G01J3/12

CPC classification number: G01J3/14 ,  G01J3/04 ,  G01J2003/2866

Abstract: Light is examined utilizing a wide slit and a dispersion means such as a prism to produce two pairs of diverging beams separated by an intermediate converging beam of white light. The light emerging from the dispersion means impinges upon a narrow slit situated between the dispersion means and a point at which the intermediate beam of white light converges. In a monochrometer, the first pair of diverging beams comprise red and yellow rays and emanate from one side of the dispersion means and the second pair of diverging beams comprises blue and violet rays and emanate from the other side of the dispersion means. A narrow slit located between the dispersion means and a point at which the intermediate white beam converges passes rays of a single color, either red, yellow, blue or violet, to a second dispersion means and light emerging from the second dispersion means impinges upon a means for measuring the dispersion of rays passing through the narrow slit with respect to a reference point. In the spectrometer, a narrow slit having a sufficient width to pass red and yellow rays while blocking blue and violet rays and vice versa is located between a dispersion means and a measuring means. The measured displacement of the rays provides a signature for the source of light illuminating the wide slit.

Abstract translation: 使用宽狭缝和诸如棱镜的分散装置来检查光，以产生由中间会聚的白光束分开的两对发散光束。 从分散装置出射的光照射在位于分散装置和白光中间束会聚的点之间的狭窄狭缝上。 在单色仪中，第一对发散光束包括红色和黄色光线，并从分散装置的一侧发出，第二对发散光束包括蓝色和紫色光线，并从分散装置的另一侧发出。 位于分散装置和中间白光束会聚的点之间的狭窄狭缝将单一颜色（红色，黄色，蓝色或紫色）的光线通过到第二分散装置，并且从第二色散装置出射的光照射到 用于测量相对于参考点通过窄狭缝的光线的色散的装置。 在光谱仪中，分散装置和测量装置之间设有窄的狭缝，该窄缝具有足够的宽度以通过红色和黄色光线同时阻挡蓝色和紫色光线，反之亦然。 所测量的射线位移为照亮宽狭缝的光源提供签名。

公开(公告)号：US4017162A

公开(公告)日：1977-04-12

申请号：US652451

申请日：1976-01-26

Applicant: James Philip George Mills

Inventor： James Philip George Mills

IPC: G01J3/04 ,  G05D25/00

CPC classification number: G01J3/04

Abstract: A metal foil or plate for use in the slit mechanism of optical systems and having two jaw sections between which the slit is defined. The jaw sections are interconnected through an integral hinge portion of the plate which is adaptable to flex so that the jaw sections can move towards and away from each other and thereby vary the slit width. When incorporated in actual slit mechanism, the plate, or at least a portion thereof, is interposed between two mounting surfaces so that the jaw sections are maintained coplanar, and an actuator for causing relative movement of the jaw sections is connected to another section of the plate which is integrally connected with each jaw section through a relatively narrow plate portion. The last mentioned section of the plate and the hinge means form the only connections between the jaw sections.

Abstract translation: 用于光学系统的狭缝机构的金属箔或板，并且具有限定狭缝的两个钳口部分。 钳口部分通过板的整体铰链部分相互连接，该铰链部分可适应于挠曲，使得钳口部分能够相互朝向和远离地移动，从而改变狭缝宽度。 当以实际的狭缝机构并入时，板或其至少一部分被插入在两个安装表面之间，使得钳口部分保持共面，并且用于引起钳口部分的相对运动的致动器连接到 板，其通过相对窄的板部分与每个夹爪部分一体地连接。 板的最后提到的部分和铰链装置形成颚部之间的唯一连接。

公开(公告)号：US3775010A

公开(公告)日：1973-11-27

申请号：US3775010D

申请日：1972-02-29

Applicant: CARY INSTRUMENTS

Inventor： CHUPP V ,  DUFFIELD J

IPC: G01J3/04 ,  G01J3/18

CPC classification number: G01J3/1804 ,  G01J3/189

Abstract: The grating of an asymmetric, double pass, grating monochromator has an axis of rotation which extends at an angle Psi relative to a normal to a plane H H''. That plane is normal to, and bisects, a line extending between the monochromator entrance and exit slits. The angle Psi is characterized in that spectral overlap is substantially elmininated.

Abstract translation: 非对称双通道光栅单色仪的光栅具有相对于平面H H'的法线以一角度PSI延伸的旋转轴。 该平面与单色仪入口和出射狭缝之间延伸的线是平行的，并且平分。 角度PSI的特征在于，光谱重叠基本上被终止。

公开(公告)号：US3756721A

公开(公告)日：1973-09-04

申请号：US3756721D

申请日：1972-03-06

Applicant: UNIV FLORIDA STATE

Inventor： WILLIAMS D

IPC: G01J3/433 ,  G01J3/04 ,  G01J3/42

CPC classification number: G01J3/433

Abstract: A wobbling single slit is provided as the entrance slit of a spectrometer which rectilinearly reciprocates at a constant amplitude, such amplitude being selectively adjustable. A control signal is obtained from a circuit that oscillates the slit for controlling the frequency and phase of the ac signal component detected and amplified from the detector after the superposed dc detected signal component is separated from the ac signal component. The invention described herein was made in the course of work under a grant or award from the Department of Health, Education and Welfare.

Abstract translation: 提供摆动的单个狭缝作为以恒定振幅直线往复运动的光谱仪的入口狭缝，这样的幅度可选择性地调节。 从重叠的直流检测信号分量与交流信号分量分离之后，从用于控制从检测器检测和放大的交流信号分量的频率和相位的狭缝振荡的电路获得控制信号。