Adjustable optical component
    201.
    发明授权
    Adjustable optical component 失效
    可调光学元件

    公开(公告)号:US5513031A

    公开(公告)日:1996-04-30

    申请号:US245243

    申请日:1994-05-17

    CPC classification number: G01J3/04

    Abstract: An adjustable optical component, for example an optical slit having adjustable slit width, comprises a movable member for providing an optical function, for example a slit and/or a shutter, and resilient suspension elements for connecting the movable member to a frame. The essential parts of the movable member, of the resilient suspension elements and of the frame consist of microstructures which are made of a common base material. Preferably, these parts are manufactured from a silicon chip by a micromechanical technique comprising, for example, anisotropic etching. In the case of an optical slit, the movable member comprises a plurality of openings of different widths which constitute a step slit. In order to adjust different slit widths, the member is moved along a line parallel to the center line of the step slit, with the force for moving the member being applied at an opening. When the member is moved by an external force, the resilient silicon beams are bending and the bars are moving. The movable member has an integrated shutter position. A high reproducibility of the adjustment of the center positions of the openings constituting the step slit during repeated movement of the member is ensured.

    Abstract translation: 可调节光学部件,例如具有可调狭缝宽度的光学狭缝,包括用于提供光学功能的可移动部件,例如狭缝和/或快门,以及用于将可移动部件连接到框架的弹性悬挂元件。 弹性悬挂元件和框架的可动构件的主要部件由由共同的基底材料制成的微结构构成。 优选地,这些部件通过包括例如各向异性蚀刻的微机械技术由硅芯片制造。 在光学狭缝的情况下,可移动部件包括构成台阶狭缝的不同宽度的多个开口。 为了调整不同的狭缝宽度,构件沿着平行于台阶狭缝的中心线的线移动,其中用于使构件移动的力被施加在开口处。 当构件通过外力移动时,弹性硅梁弯曲并且杆移动。 可动构件具有一体的快门位置。 确保了在构件的重复移动期间构成台阶狭缝的开口的中心位置的调整的高再现性。

    Spectrometer provided with an optical shutter
    202.
    发明授权
    Spectrometer provided with an optical shutter 失效
    光谱仪配有光学快门

    公开(公告)号:US5457530A

    公开(公告)日:1995-10-10

    申请号:US290231

    申请日:1994-08-15

    Applicant: Yoshiroh Nagai

    Inventor: Yoshiroh Nagai

    CPC classification number: G01J3/06 G01J3/0232 G01J2003/1273 G01J3/0229

    Abstract: A multi-slit type spectrometer includes a diffractor by which an incident light is diffracted according to wavelengths; an optical shutter array member including a plurality of optical shutter elements arranged in correspondence with wavelength bands diffracted by the diffractor, operable to transmit an incident ray according to an applied voltage, and made of PLZT. Each optical shutter element is applied with a voltage corresponding to the band of the ray incident upon the optical shutter element at a specified timing so that the ray passes through the optical shutter element. The spectrometer further includes a photosensor to convert the ray passed through the optical shutter element to an electrical signal, and a calculator to calculate the intensity of the incident ray for each band in accordance with the electrical signal output from the photosensor and the specified applying timing.

    Abstract translation: 多狭缝型光谱仪包括:入射光根据波长衍射的衍射体; 一个光学快门阵列部件,包括与由衍射器衍射的波长带相对应地布置的多个光学快门元件,可操作以根据所施加的电压传输入射光线,并由PLZT制成。 每个光学快门元件在指定的时刻施加与入射到光学快门元件上的光线的波段相对应的电压,使得光线通过光学快门元件。 光谱仪还包括光电传感器,用于将通过光学快门元件的光线转换成电信号,以及计算器,用于根据从光传感器输出的电信号和指定的施加定时计算每个频带的入射光线强度 。

    Device for setting slit widths in the beam path of spectrometers
    203.
    发明授权
    Device for setting slit widths in the beam path of spectrometers 失效
    设置光谱仪光束路径中的狭缝宽度的装置

    公开(公告)号:US5451780A

    公开(公告)日:1995-09-19

    申请号:US294099

    申请日:1994-08-22

    Applicant: Bernd Laser

    Inventor: Bernd Laser

    CPC classification number: H01J49/06

    Abstract: A slit is disposed as diaphragm in the beam path of a mass spectrometer. The slit width is to be variable in the simplest possible manner. Manual, electric motor-driven, thermoelectric or piezoelectric adjustment devices are known. According to the invention a pneumatic adjustment is provided. A Bourdon tube (12) moves a lever (14), at one end (18) of which slits (19, 20, 21) of differing slit widths are disposed. The lever movements are limited by abutments (22, 23).

    Abstract translation: 狭缝在质谱仪的光束路径中设置为隔膜。 狭缝宽度可以以最简单的方式变化。 手动,电动驱动,热电或压电调节装置是已知的。 根据本发明,提供气动调节。 布尔登管(12)在其一端(18)处移动杆(14),其中设置有不同狭缝宽度的狭缝(19,20,21)。 杠杆运动受到基台(22,23)的限制。

    Multispectral reflectometer
    205.
    发明授权
    Multispectral reflectometer 失效
    多光谱反射计

    公开(公告)号:US5262840A

    公开(公告)日:1993-11-16

    申请号:US781

    申请日:1993-01-04

    Abstract: A reflectometer for measuring absorption of light in selected regions of the light spectrum by a diffuse reflector. The reflectometer is adapted to precisely measure absorption resulting from the constituents present in body fluids. The sample to be measured is illuminated by a focused light source at an angle of 45.degree. to its surface. The light diffusely reflected about the normal to the sample falls on a small round bundle of optical fibers at the opposite end of the bundle, the fibers are arranged into a narrow rectangle. This rectangle forms the entrance slit for a concave holographic diffraction grating. The grating forms images of this entrance slit spectrally separated over a flat field suitable for recording the spectrum on film or on an array of discrete detectors.

    Abstract translation: 用于通过漫反射器测量光谱的选定区域中的光的吸收的反射计。 反射计适用于精确测量由体液中存在的成分引起的吸收。 要测量的样品被聚焦光源以与其表面成45度的角度照射。 围绕样品的法线漫反射的光落在束的相对端的小圆形光纤束上,纤维被排列成窄的矩形。 该矩形形成凹面全息衍射光栅的入口狭缝。 光栅形成在适合于在胶片上或在离散检测器阵列上记录光谱的平坦场上光谱分离的入口狭缝的图像。

    Precision slit of adjustable width for a spectral instrument
    206.
    发明授权
    Precision slit of adjustable width for a spectral instrument 失效
    用于光谱仪器的可调节宽度精度

    公开(公告)号:US5206765A

    公开(公告)日:1993-04-27

    申请号:US859102

    申请日:1992-03-27

    Applicant: Rolf Trager

    Inventor: Rolf Trager

    CPC classification number: G21K1/04 G01J3/04 G02B5/005

    Abstract: A precision slit of adjustable width in which each slit jaw is guided via at least two guide parallelograms lying opposite each other and in which a single setting member acting jointly on the guide parallelograms of one side and displaceable perpendicular to the direction of movement of the slit jaws is provided for the setting of slit width. In a preferred embodiment, the guide parallelograms are developed as spring parallelograms, an embodiment prepared monolithically from a plate of compliant material and having particular advantages.

    Abstract translation: 一个可调节宽度的精密狭缝,其中每个狭缝钳口经由彼此相对的至少两个引导平行四边形引导,其中单个设置构件共同作用于一侧的引导平行四边形并且可垂直于狭缝的移动方向移位 提供了用于设置狭缝宽度的钳口。 在优选实施例中,引导平行四边形是作为弹簧平行四边形而开发的,该实施例由顺应性材料板整体制备并且具有特别的优点。

    Spectroanalytical systems
    207.
    发明授权
    Spectroanalytical systems 失效
    光谱分析系统

    公开(公告)号:US5088823A

    公开(公告)日:1992-02-18

    申请号:US414700

    申请日:1989-09-29

    Abstract: A spectroanalytical system includes entrance aperture defining structure for receiving radiation to be analyzed along a first path; collimating structure in the first path for providing collimated radiation along a second path; fixed refraction structure in the second path for spatially separating (refracting) radiation in the second path in a first direction as a function of wavelength; fixed echelle grating structure in the second path for spatially separating the refracted radiation as a function of wavelength in a second direction orthogonal to the first direction and directing the orthogonally dispersed radiation in a beam along a third path that does not pass through the first refraction structure; and two-dimensional array detector structure for detecting the beam of orthogonally refracted radiation.

    Abstract translation: 光谱分析系统包括用于沿着第一路径接收要分析的辐射的入口孔限定结构; 用于沿第二路径提供准直辐射的第一路径中的准直结构; 在第二路径中的固定折射结构,用于沿第一方向在第二路径中空间分离(折射)辐射作为波长的函数; 在第二路径中固定的梯形光栅结构,用于在与第一方向正交的第二方向上将波长的函数空间上分离折射辐射,并将沿着不穿过第一折射结构的第三路径的正交分散的辐射引导到光束中 ; 以及用于检测正交折射辐射束的二维阵列检测器结构。

    Continuously rotating grating rapid-scan spectrophotometer
    209.
    发明授权
    Continuously rotating grating rapid-scan spectrophotometer 失效
    连续旋转光栅快速扫描分光光度计

    公开(公告)号:US4804266A

    公开(公告)日:1989-02-14

    申请号:US8544

    申请日:1987-01-29

    Applicant: Yoav Barshad

    Inventor: Yoav Barshad

    Abstract: A system for rapid-scan spectral analysis comprising a concave holographic diffraction grating continuously rotated at a substantially constant angular velocity to provide a rapid scanning monochromator (a monochromator is used to transfer nominal regions of wavelengths out of the continuous light source). The unique sampling circuitry uses an optical shaft encoder. The angular velocity and angular acceleration of the grating are calculated from time measurements, just before the first wavelength of interest falls on the detector. This information is used to control the Analog to Digital converter sampling rate across the region of interest. The samples as a function of time are stored in a memory buffer so that each data point corresponds to a wavelength.

    Abstract translation: 一种用于快速扫描光谱分析的系统,包括以基本上恒定的角速度连续旋转的凹面全息衍射光栅,以提供快速扫描单色仪(使用单色仪将标称的波长区域转移出连续光源)。 独特的采样电路采用光轴编码器。 光栅的角速度和角加速度由时间测量计算,就在感兴趣的第一波长落在检测器之前。 该信息用于控制整个感兴趣区域的模数转换器采样率。 作为时间的函数的样本被存储在存储器缓冲器中,使得每个数据点对应于波长。

    Device for adjusting slit widths in spectrometers
    210.
    发明授权
    Device for adjusting slit widths in spectrometers 失效
    用于调整光谱仪中狭缝宽度的装置

    公开(公告)号:US4612440A

    公开(公告)日:1986-09-16

    申请号:US648891

    申请日:1984-09-10

    CPC classification number: H01J49/067 G01J3/04 G21K1/04 H01J49/02

    Abstract: Slit means in spectrometers for the analysis of organic and inorganic substances, in particular in mass spectrometers, have hitherto been controlled for varying the slit widths by connecting them in a suitable manner to a metallic wire, through which an electric current flowed, under the influence of which the wire heats up and changes its length. The slit or diaphragm means connected to the wire were then displaced relative to the beam path. It is a great disadvantage that the diaphragms follow a change of the current for controlling the slit widths with a relatively long time delay, which is unacceptable for various types of measuring operation, in particular types of measuring operation under data system control. To eliminate this disadvantage, a device (11) is proposed which has at least one movable slit jaw (12) which is movable to and fro, substantially perpendicular to the beam path (16) and without delay, by a piezo-electric element (14).

    Abstract translation: 狭缝意味着用于分析有机和无机物质,特别是在质谱仪中的分光计,迄今为止已经通过将它们以合适的方式连接到金属丝来控制以改变狭缝宽度,电流在影响下通过其流过电流 其中电线加热并改变其长度。 连接到电线的狭缝或隔膜装置然后相对于光束路径移位。 隔膜具有相当长的时间延迟来控制狭缝宽度的电​​流的变化是非常大的缺点,对于各种类型的测量操作,特别是在数据系统控制下的测量操作类型是不可接受的。 为了消除这个缺点,提出了一种装置(11),其具有至少一个可移动的狭缝钳口(12),其可移动地来回移动,基本上垂直于光束路径(16)并且无延迟地通过压电元件( 14)。

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