公开(公告)号：US20020067895A1

公开(公告)日：2002-06-06

申请号：US09727856

申请日：2000-12-01

Inventor： Dale C. Flanders

IPC: G02B006/36

CPC classification number: G01J3/08

Abstract: An optical spectrum analyzer includes an integrated beam switch array. As a result, a single spectrum analyzer can be amortized across multiple optical links with pigtails transmitting the optical signals from separate optical links. The switch array providing one of the optical signals as an input signal to the optical spectrum analyzer.

Abstract translation: 光谱分析仪包括集成光束开关阵列。 因此，单个频谱分析仪可以通过多条光链路进行分摊，其中辫子从单独的光链路传输光信号。 该开关阵列提供一个光信号作为光谱分析仪的输入信号。

公开(公告)号：US06377346B1

公开(公告)日：2002-04-23

申请号：US09398996

申请日：1999-09-17

Applicant: Mikko Väisälä ,  Jarmo Nurmi ,  Jarmo Korpi ,  Raimo Harju

Inventor： Mikko Väisälä ,  Jarmo Nurmi ,  Jarmo Korpi ,  Raimo Harju

IPC: G01N2127

CPC classification number: G01J3/08 ,  G01J3/021 ,  G01J3/0232 ,  G01J3/10 ,  G01N21/253 ,  G01N2201/06146 ,  G01N2201/0625

Abstract: An imaging device for biochemical or medical samples, the pulse mode light source of which incorporates flash lamps and a rotating mirror in an inclined position, the said mirror reflecting the light emitted by each flash lamp in turn along the same optical path to the sample. The flash lamps are switched on alternately in phases and synchronised with the rotating mirror and the emission light chopper, which comprises two rotating discs. The turning mirror directs the light at the sample from above and/or below, in which case a double-acting transparent scattering plate can be used.

Abstract translation: 用于生物化学或医学样品的成像装置，其脉冲模式光源包含闪光灯和倾斜位置的旋转镜，所述反射镜依次沿着与样品相同的光路反射每个闪光灯发射的光。 闪光灯交替地相互切换并与旋转镜和发射光斩波器同步，发射光斩波器包括两个旋转盘。 转向镜从上方和/或下方引导样品上的光，在这种情况下可以使用双作用透明散射板。

公开(公告)号：US20010050770A1

公开(公告)日：2001-12-13

申请号：US09752733

申请日：2001-01-03

Applicant: SHIMADZU CORPORATION

Inventor： Kazumi Yokota

IPC: G01J003/42

CPC classification number: G01J3/42 ,  G01J3/08

Abstract: In a spectrophotometer, light emitted from a light source is processed to provide monochromatic light by a monochromator, and reaches a sector mirror having a chopper function. The sector mirror is rotated by a motor, and a rotational frequency of the motor can be controlled by a controller. By rotation of the sector mirror, monochromatic light is alternately distributed to a sample cell and a reference cell through a mirror. In measuring a wavelength range where a detector having a photomultiplier with a fast response speed is used, the motor is rotated at a high speed, so that time for scanning a wavelength is shortened. In measuring a wavelength range where a detector having lead sulfide with a slow response speed is used, the motor is rotated at a low speed to obtain a sufficiently strong signal intensity. Accordingly, in the spectrophotometer, the analysis time can be shortened, and the sufficiently strong signal can be outputted at the same time.

Abstract translation: 在分光光度计中，对从光源发出的光进行处理，由单色仪提供单色光，并到达具有斩波功能的扇形镜。 扇形镜由电动机旋转，电动机的转速可由控制器控制。 通过扇形镜的旋转，单色光通过反射镜交替地分布到样品池和参考池。 在测量使用具有快速响应速度的光电倍增管的检测器的波长范围时，马达以高速旋转，从而缩短了扫描波长的时间。 在测量使用具有缓慢响应速度的具有硫化铅的检测器的波长范围时，马达以低速旋转以获得足够强的信号强度。 因此，在分光光度计中，能够缩短分析时间，能够同时输出足够强的信号。

公开(公告)号：US6057923A

公开(公告)日：2000-05-02

申请号：US290954

申请日：1999-04-13

Applicant: Glen W. Sachse

Inventor： Glen W. Sachse

IPC: G01J3/08 ,  G01J3/42 ,  G01J3/447 ,  G01N21/21 ,  G01N21/31 ,  G01N21/35 ,  G02B5/30

CPC classification number: G01J3/08 ,  G01N21/314 ,  G01N21/3518

Abstract: A system and method are provided for detecting one or more substances. An optical path switch divides sample path radiation into a time series of alternating first polarized components and second polarized components. The first polarized components are transmitted along a first optical path and the second polarized components along a second optical path. A first gasless optical filter train filters the first polarized components to isolate at least a first wavelength band thereby generating first filtered radiation. A second gasless optical filter train filters the second polarized components to isolate at least a second wavelength band thereby generating second filtered radiation. The first wavelength band and second wavelength band are unique. Further, spectral absorption of a substance of interest is different at the first wavelength band as compared to the second wavelength band. A beam combiner combines the first and second filtered radiation to form a combined beam of radiation. A detector is disposed to monitor magnitude of at least a portion of the combined beam alternately at the first wavelength band and the second wavelength band as an indication of the concentration of the substance in the sample path.

Abstract translation: 提供了用于检测一种或多种物质的系统和方法。 光路开关将采样路径辐射分为交替的第一偏振分量和第二偏振分量的时间序列。 第一偏振分量沿着第一光路传播，第二偏振分量沿着第二光路传输。 第一无气体光学滤波器组对第一极化分量进行滤波以隔离至少第一波长带，从而产生第一滤波辐射。 第二无气体光学滤波器组对第二极化分量进行滤波以隔离至少第二波长带，从而产生第二滤波辐射。 第一波长带和第二波长带是唯一的。 此外，与第二波长带相比，感兴趣的物质的光谱吸收在第一波长带处不同。 光束组合器组合第一和第二滤波辐射以形成组合的辐射束。 检测器被设置为在第一波长带和第二波长带上交替地监测组合光束的至少一部分的大小作为样品路径中物质浓度的指示。

公开(公告)号：US5386295A

公开(公告)日：1995-01-31

申请号：US005321

申请日：1993-01-15

Applicant: Steven C. Switalski ,  David S. Uerz ,  Alan J. Lowne ,  James R. Sandifer ,  Hsue-Yang Liu

Inventor： Steven C. Switalski ,  David S. Uerz ,  Alan J. Lowne ,  James R. Sandifer ,  Hsue-Yang Liu

IPC: G01J1/44 ,  G01J3/08 ,  G01J3/28 ,  G01J3/51 ,  G01N21/31 ,  G01N21/35 ,  G02B26/04 ,  G01J3/02 ,  G01N21/64 ,  G01N21/65

CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0235 ,  G01J3/0289 ,  G01J3/08 ,  G01J3/44 ,  G01N21/314 ,  G02B26/04 ,  G01J2001/4242 ,  G01J2003/1213 ,  G01J2003/2866 ,  G01N2021/3133 ,  G01N2021/3159 ,  G01N2021/3174 ,  G01N2021/4742 ,  G01N21/359 ,  G01N2201/0826 ,  G01N2201/1283

Abstract: A postacquired spectrophotometer, for use with a sample and reference. The spectrophotometer has a filter unit, defining an axis of movement, and pluralities of designated sites and dark sites disposed in uniform relation to the axis. The designated and dark sites are disposed in alternation. Alternating designated sites have apertures and filters covering the apertures. Further, a main member, coaxial with the filter unit, has sample and reference beam paths, which are intersected by the sites. The main member has disposed, in operative relation to the actuators, an actuator sensor, which generates an integration actuator signal upon alignment with each integration actuator and a clamping actuator signal upon alignment with each clamping actuator. Moreover, a drive continuously moves the filter unit relative to the axis and beam paths. Further, a light distribution system directs light separately from the sample and reference to respective beam paths, and then to a detector, which produces a detector signal responsive to light received. Finally, means for processing the signals is provided, including a clamping circuit, integrators, and a demultiplexer.

Abstract translation: 一个采用分光光度计的分光光度计，用于样品和参考。 分光光度计具有限定运动轴线的过滤器单元以及与轴线均匀关系地设置的多个指定位置和暗点。 指定的和黑暗的地点交替处置。 交替指定的位置具有覆盖孔的孔和过滤器。 此外，与过滤器单元同轴的主构件具有与位置相交的样品和参考光束路径。 主构件以致动器的方式相对于致动器设置致动器传感器，其在与每个积分致动器对准时产生积分致动器信号，并且在与每个夹紧致动器对准时产生夹紧致动器信号。 此外，驱动器相对于轴和梁路连续地移动过滤单元。 此外，配光系统将光从样品分开引导并参考各个光束路径，然后引导到检测器，该检测器响应于所接收的光产生检测器信号。 最后，提供用于处理信号的装置，包括钳位电路，积分器和解复用器。

公开(公告)号：US5311292A

公开(公告)日：1994-05-10

申请号：US915599

申请日：1992-07-21

Applicant: Tatsumi Sato ,  Osamu Ando

Inventor： Tatsumi Sato ,  Osamu Ando

IPC: G01M11/00 ,  G01J3/08 ,  G01J3/50 ,  G01N21/25 ,  G01N21/27 ,  G01N21/31 ,  G01N21/59 ,  G01J3/46

CPC classification number: G01N21/25 ,  G01J3/0251 ,  G01J3/08 ,  G01J3/50 ,  G01N2021/3166 ,  G01N2201/065

Abstract: An apparatus for measuring color transmissivities of a color separation prism P includes (where the color separation prism P receives a measurement light S on an incident path and emits three color lights Sr, Sg and Sb on three exit paths of different directions): a photomultiplier 21 and an integrating sphere I for measuring an intensity of light entering the integrating sphere I on an entrance path, where the entrance path is set detached from an extension of the incident path; a first movable mirror 9 located in one of four paths including an extension of the incident path and the three exit paths for reflecting the light on each path to the second movable mirror 10; and a second movable mirror 10 placed on the entrance path of the integrating sphere I (with the photomultiplier 21) and oriented in one of four directions for reflecting the light from the first movable mirror 9 to the integrating sphere I. Because the 100%-transmission light and the three color lights transmitted through the color separation prism P undergo the same optical history, absolute transmissivities of the color lights can be measured, and the two-beam method can be used since the integrating sphere I is fixed.

Abstract translation: 用于测量分色棱镜P的颜色透射率的装置包括（其中分色棱镜P接收入射路径上的测量光S并在不同方向的三个出口处发射三色光Sr，Sg和Sb）：光电倍增管 21和用于测量在入射路径上进入积分球I的光的强度的积分球I，其中入射路径与入射路径的延伸部分离开; 第一可移动镜9，其位于包括入射路径的延伸部的四个路径中的一个中，以及用于将每条路径上的光反射到第二可移动镜10的三个出射路径; 以及放置在积分球I（与光电倍增管21）的入射路径上的第二可移动镜10，并且在四个方向中的一个方向上定向，以将来自第一可移动镜9的光反射到积分球I.由于100％ - 透射光和通过分色棱镜P透射的三色光经历相同的光学历史，可以测量彩色光的绝对透射率，并且可以使用双积分方法，因为积分球I是固定的。

公开(公告)号：US5184193A

公开(公告)日：1993-02-02

申请号：US293218

申请日：1989-01-04

Applicant: David A. LeFebre

Inventor： David A. LeFebre

IPC: G01J1/18 ,  G01J3/06 ,  G01J3/08 ,  G01J3/42

CPC classification number: G01J3/08 ,  G01J2001/182 ,  G01J2003/068 ,  G01J3/42 ,  G01N2201/04 ,  G01N2201/0833

Abstract: Spectrophotometric apparatus and methodology suitable for continuous and long-term use. The apparatus includes a monochromator providing pre-dispersed monochromatic light to the optical inputs of a pair of fiber optic cables and a translator for alternatively positioning the fiber optic cables at the same location with respect to the monochromator output. One of the cables conducts light to a sample under study while the other cable provides a reference for light intensity measurements. The methodology includes the steps of performing two scans through the monochromator output for each measurement on the sample. The fiber optic cables are moved between scans so that the cable employed in the latter scan occupies the former position of the cable employed in prior scan.

Abstract translation: 分光光度仪和方法适用于连续和长期使用。 该装置包括单色仪，其将预分散的单色光提供给一对光纤电缆的光输入端，以及用于相对于单色仪输出将光纤缆线替代地定位在相同位置处的转换器。 其中一根电缆对正在研究的样品进行光照，而另一根电缆为光强测量提供参考。 该方法包括通过单色仪输出进行两次扫描以对样本进行每次测量的步骤。 光纤电缆在扫描之间移动，使得在后一扫描中使用的电缆占据先前扫描中使用的电缆的前一位置。

公开(公告)号：US5128797A

公开(公告)日：1992-07-07

申请号：US653605

申请日：1991-02-11

Applicant: Glen W. Sachse ,  Liang-Guo Wang

Inventor： Glen W. Sachse ,  Liang-Guo Wang

IPC: G01J3/08 ,  G01N21/35

CPC classification number: G01N21/3518 ,  G01J3/08 ,  G01N2021/3509

Abstract: A non-mechanical optical switch is provided for alternately switching a monochromatic or quasi-monochromatic light beam along two optical paths. A polarizer polarizes light into a single, e.g., vertical component which is then rapidly modulated into vertical and horizontal components by a polarization modulator. A polarization beam splitter then reflects one of these components along one path and transmits the other along the second path. In the specific application of gas filter correlation radiometry, one path is directed through a vacuum cell and one path is directed through a gas correlation cell containing a desired gas. Reflecting mirrors cause these two paths to intersect at a second polarization beam splitter which reflects one component and transmits the other to recombine them into a polarization modulated beam which can be detected by an appropriate single sensor.

Abstract translation: 提供非机械光学开关用于沿着两个光路交替地切换单色或准单色光束。 偏振器将光线偏振成单个例如垂直分量，然后通过偏振调制器将光快速调制成垂直和水平分量。 偏振分束器然后沿着一个路径反射这些分量中的一个，并沿第二路径传输另一个。 在气体过滤器相关辐射测量的具体应用中，一条路径被引导通过真空室，一条路径被引导通过含有所需气体的气相关池。 反射镜使得这两条路径在第二偏振分束器处相交，​​第二偏振分束器反射一个分量并透射另一个分量，将它们重新组合成可由适当的单个传感器检测的偏振调制束。

公开(公告)号：US4464051A

公开(公告)日：1984-08-07

申请号：US354254

申请日：1982-03-02

Applicant: Paul C. Talmadge ,  Joseph A. Vergato

Inventor： Paul C. Talmadge ,  Joseph A. Vergato

IPC: G01J3/06 ,  G01J3/08 ,  G01J3/42

CPC classification number: G01J3/42 ,  G01J3/06 ,  G01J3/08

Abstract: Disclosed herein is a spectrophotometer which includes a source of radiation; an optical system for forming a beam of radiation from the source and directing it along a sample path and along a reference path, which paths come together at a location to form a combined path that impinges on a detector; a chopper mounted at said location for successively directing one or the other of the beams along the combined path or providing a blank chopper area for blocking radiation from the combined path; a monochromator having a grating and slits disposed in the combined path, the angular position of the grating being adjustable for passing selected successive wavelengths of radiant energy through the optical system; and controls are provided for controlling the movement of the grating and/or slits so that movement only occurs when the blank chopper area is blocking the combined path.

Abstract translation: 本文公开了一种分光光度计，其包括辐射源; 光学系统，用于形成来自光源的辐射束并且沿着参考路径引导辐射束，这些路径在一个位置聚集在一起以形成撞击检测器的组合路径; 安装在所述位置的斩波器，用于沿着所述组合路径连续引导所述光束中的一个或另一个，或者提供用于阻挡来自所述组合路径的辐射的空白切断器区域; 具有设置在组合路径中的光栅和狭缝的单色仪，所述光栅的角度位置是可调节的，用于通过所述光学系统传递选定的连续波长的辐射能; 并且提供控制以控制光栅和/或狭缝的移动，使得仅当空白切断器区域阻挡组合路径时才发生移动。

公开(公告)号：US4305663A

公开(公告)日：1981-12-15

申请号：US125011

申请日：1980-02-27

Applicant: Charles V. Perkins ,  John R. Firth

Inventor： Charles V. Perkins ,  John R. Firth

IPC: G01J3/06 ,  G01J3/18 ,  G01J3/42 ,  G01J3/08

CPC classification number: G01J3/08 ,  G01J3/06 ,  G01J3/18 ,  G01J3/42

Abstract: A dual beam spectrophotometer includes a radiation chopper, a monochrometer, and a diffraction grating moved by a stepper motor. The chopper includes a gate pulse generator which produces gate pulses G.sub.S and G.sub.R corresponding to periods during which radiation from the source passes through a sample cell and a reference cell respectively. A stepper motor drive circuit produces pulses to step the stepper motor which are synchronized with the chopping cycle by means of the G.sub.R and G.sub.S pulses. The stepper motor is arranged to step an equal number of times in each half of a chopping cycle. A further condition which is preferably satisfied is that the first pulse of a sequence should start in the opposite half of the chopping cycle from that in which the first pulse started in a previous chopping cycle. At low stepping rates the motor will step twice in one chopping cycle and then pause for several cycles before again stepping twice.

Abstract translation: 双光束分光光度计包括辐射斩光器，单色仪和由步进电机驱动的衍射光栅。 斩波器包括门脉冲发生器，其产生对应于来自源的辐射通过样本池和参考单元的周期的栅极脉冲GS和GR。 步进电机驱动电路通过GR和GS脉冲产生脉冲以步进与斩波周期同步的步进电机。 步进电机被布置成在斩波周期的每一半中相等次数。 优选满足的另一个条件是序列的第一个脉冲应该在斩波周期的相反一半开始，其中第一个脉冲在先前的斩波周期中开始。 在低步进率下，电机将在一个斩波周期中步进两次，然后暂停几个周期，然后再次步进两次。