Spectrophotometer
    132.
    发明授权
    Spectrophotometer 失效
    分光光度计

    公开(公告)号:US4687329A

    公开(公告)日:1987-08-18

    申请号:US941247

    申请日:1986-12-12

    Abstract: An improved spectrophotometer, especially suitable for use in centrifugal analysis instrumentation, is disclosed. The spectrophotometer is improved by including therein a detector comprising a photodiode array assembly having a photodiode array, a spectral filter assembly situated substantially parallel thereto and in the path of incident light and means for attenuating stray light which would otherwise impinge on each of the photodiodes of the array.

    Abstract translation: 公开了一种改进的分光光度计,特别适用于离心分析仪器。 通过在其中包括具有光电二极管阵列的光电二极管阵列组件的检测器来改进分光光度计,所述光电二极管阵列组件具有基本上平行于其的光谱滤波器组件和入射光的路径,以及用于衰减杂散光的装置,否则将会影响杂散光 阵列。

    Compact temporal spectral photometer
    133.
    发明授权
    Compact temporal spectral photometer 失效
    紧凑的时间光谱光度计

    公开(公告)号:US4630925A

    公开(公告)日:1986-12-23

    申请号:US437897

    申请日:1982-11-01

    CPC classification number: G01N21/6408

    Abstract: A temporal spectral photometer for use in obtaining spectral and temporal information simultaneously of an ultrafast pulse of luminescent light emitted from a sample upon excitation thereof includes an excitation section and a detection section. The excitation section includes a picosecond laser for exciting the sample to emit luminescent light and imaging optics for imaging the emitted light. The detection section includes a pin hole slit through which light from the imaging optics is admitted, a streak camera tube, an optical system including a grating for forming an image of the pin hole slit on the photocathode of the streak camera tube and at the same time dispersing the light admitted through the pin hole slit into its component wavelengths, a micrometer assembly mechanically coupled to the grating for selectively changing the wavelength region of dispersed light impinging on the photocathode, a video camera, a camera lens system for imaging the output image formed on the phosphor screen of the streak camera tube onto the input end of the video camera, a digital temporal analyzer coupled to the output of the video camera for digitizing and analyzing image information from the video camera and a video monitor coupled to the output of the temporal analyzer for displaying the analyzed data.

    Abstract translation: 用于同时获得从样品发射的发光的超快脉冲的光谱和时间信息的时间光谱光度计包括激发部分和检测部分。 激发部分包括用于激发样品发射发光的皮秒激光器和用于成像发射光的成像光学元件。 检测部分包括一个针孔狭缝,来自成像光学元件的光通过该孔孔,条纹相机管,光学系统,包括用于在条形相机管的光电阴极上形成针孔狭缝的图像的光栅 将通过针孔狭缝进入的光的时间分散成其分量波长,将与光栅机械耦合的微米组件选择性地改变照射在光电阴极上的分散光的波长区域,摄像机,用于对输出图像成像的相机透镜系统 形成在条纹相机管的荧光屏上到摄像机的输入端,耦合到摄像机的输出的数字时间分析器,用于数字化和分析来自摄像机的图像信息,以及耦合到视频摄像机的输出的视频监视器 用于显示分析数据的时间分析器。

    Adjustable slit assembly for a monochromator
    134.
    发明授权
    Adjustable slit assembly for a monochromator 失效
    用于单色仪的可调节狭缝组件

    公开(公告)号:US4483590A

    公开(公告)日:1984-11-20

    申请号:US439463

    申请日:1982-11-05

    CPC classification number: G01J3/04

    Abstract: An adjustable slit plate assembly for a monochromator is formed by two identical metal plates (P1, P2) each having a set of slits (EX1 to EX6 and EN1 to EX6 respectively) with all the slits disposed on a common circle. The plates (P1, P2) are located and supported on a disc (SM) on a rotatable shaft (SH) at the axis (A) of the circle. The slits are each of minimum length to pass a radiant beam of given energy through the monochromator and each set of slits occupies an arc of substantially minimum length. The shape of each plate is substantially a sector of a further circle whose radius and arc are the minimum necessary to accommodate the slits and the axis. The complete configuration of the plates is formed by etching in a single operation, and a greater number of slit sets can be formed together from a plate of given area than for the prior art case in which the two sets of slits for a slit assembly are formed in a single plate in the shape of a complete disc. A significant cost reduction in the slit assembly is thus achieved.

    Abstract translation: 用于单色仪的可调节狭缝板组件由两个相同的金属板(P1,P2)形成,每个金属板具有一组狭缝(分别为EX1至EX6和EN1至EX6),所有狭缝均设置在公共圆上。 板(P1,P2)定位并支撑在圆的轴线(A)上的可旋转轴(SH)上的盘(SM)上。 这些狭缝各自具有最小长度以使通过单色仪的给定能量的辐射束,并且每组狭缝占据基本上最小长度的弧。 每个板的形状基本上是另一个圆的扇形,其半径和弧是适应狭缝和轴所必需的最小值。 板的完整构造通过在单次操作中的蚀刻形成,并且可以从给定区域的板形成更多数量的狭缝组,而不是现有技术的情况,其中两组狭缝组件的狭缝为 形成在一个完整圆盘形状的单个板上。 因此实现了狭缝组件的显着的成本降低。

    Apparatus for measuring the color of a brilliant-cut diamond
    135.
    发明授权
    Apparatus for measuring the color of a brilliant-cut diamond 失效
    用于测量辉光切割钻石颜色的装置

    公开(公告)号:US4482245A

    公开(公告)日:1984-11-13

    申请号:US444606

    申请日:1982-11-26

    Abstract: An apparatus for measuring a diamond color comprises a light source composed of a lamp and an integrating sphere for diffusing light therein emitted from the lamp; a diamond holder including diamond supporting head means and suction base means, thereby positioning the table facet of the diamond in the integrating sphere for allowing the diffused light from the light source to fall on the table facet of the diamond; a monochromator for separating a beam of light as it emerges from the diamond through the table facet side into a spectrum; a photodetector for detecting the light from the monochromator; variable slit means disposed in at least one of the monochromator and the photodetector for adjusting the size of the beam of light to a diameter of the diamond; a measurement unit for controlling at least the monochromator to obtain a spectrum of the light which has passed through the diamond; and an arithmetic unit for deriving tristimulus values X, Y and Z from the spectrum of the light from the diamond; which is able to measure the colors of brilliant-cut diamonds easily and objectively.

    Abstract translation: 用于测量金刚石颜色的装置包括由灯组成的光源和用于从灯发射的光的积分球; 金刚石保持器,其包括金刚石支撑头装置和抽吸底座装置,从而将金刚石的台面定位在积分球中,以允许来自光源的漫射光落在金刚石的台面上; 单色仪,用于当光束从金刚石通过台面侧面分离成光谱时,分离光束; 用于检测来自单色仪的光的光电检测器; 设置在所述单色仪和所述光电检测器中的至少一个中的可变狭缝装置,用于将所述光束的尺寸调整为所述金刚石的直径; 测量单元,用于至少控制单色仪以获得穿过金刚石的光的光谱; 以及用于从来自金刚石的光的光谱导出三刺激值X,Y和Z的算术单元; 它能够轻松,客观地测量辉煌切割钻石的颜色。

    Optical spectroscope for scanning electron microscope
    136.
    发明授权
    Optical spectroscope for scanning electron microscope 失效
    扫描电子显微镜光学分光镜

    公开(公告)号:US4410272A

    公开(公告)日:1983-10-18

    申请号:US272781

    申请日:1981-06-11

    CPC classification number: H01J37/228 G01J3/18 H01J2237/2808

    Abstract: Optical spectroscope for scanning electron microscopes, the latter comprising a vacuum chamber containing a sample holder bombarded by an electron beam.The microscope chamber contains a concave mirror having an opening, a plane deviating mirror and an exit window for the chamber. Outside the microscope chamber is provided a drum carrying a plurality of flat diffractive gratings, the drum being equipped with a bracket which rotates about an axis controlled by a stepping motor. In addition there are a spherical concave mirror, a slit blocking means and a photodetector.

    Abstract translation: 用于扫描电子显微镜的光学分光镜,后者包括含有由电子束轰击的样品架的真空室。 显微镜室包含具有开口的凹面镜,平面偏转镜和用于腔室的出射窗。 在显微镜室外设置有承载多个平面衍射光栅的鼓,该滚筒装有一个围绕由步进马达控制的轴线旋转的托架。 另外还有球面凹面镜,狭缝阻挡装置和光电检测器。

    Multiple entrance aperture dispersive optical spectrometer
    137.
    发明授权
    Multiple entrance aperture dispersive optical spectrometer 失效
    多入口孔径色散光谱仪

    公开(公告)号:US4375919A

    公开(公告)日:1983-03-08

    申请号:US195210

    申请日:1980-10-07

    Inventor: Kenneth W. Busch

    CPC classification number: G01J3/02 G01J3/0218 G01J3/0294 G01J3/04

    Abstract: A dispersive optical spectrometer is disclosed which comprises light detection means, dispersion means for separating light radiation into spectral components and for directing the spectral components toward the light detection means, means for admitting light radiation into the entrance focal plane and for directing the light radiation toward the dispersion means, the light radiation admitting means including a plurality of spaced-apart apertures, and light transmission means for transmitting light radiation from a light source to one or more of the apertures.

    Abstract translation: 公开了一种分散光学光谱仪,其包括光检测装置,用于将光辐射分离成光谱分量并用于将光谱分量引导到光检测装置的分散装置,用于将光辐射引入入射焦平面并用于将光辐射引向 分散装置,包括多个间隔开的孔的光辐射允许装置和用于将来自光源的光辐射传送到一个或多个孔的光传输装置。

    Vacuum spectrometer having a number of remotely positionable narrow
wavelength detectors
    138.
    发明授权
    Vacuum spectrometer having a number of remotely positionable narrow wavelength detectors 失效
    真空光谱仪具有多个可远程定位的窄波长检测器

    公开(公告)号:US4320972A

    公开(公告)日:1982-03-23

    申请号:US135584

    申请日:1980-03-31

    CPC classification number: G01J3/20 G01J3/02 G01J3/0202 G01J3/36

    Abstract: A spectrometer of the Rowland circle type having an annular steel table on which are supported a plurality of wheeled carriages. Each carriage has a remotely operable magnetic clamping arrangement to clamp it to the table. Each carriage also has a light entrance slit located in the focal plane, a photo-multiplier tube, and an optical fibre for channelling light from the entrance slit to the photo-multiplier tube. A positioning arm, pivotal about a central axis, is provided. The arm has at its free end a gripping arrangement which is remotely operable to grip any selected carriage. The arm is also remotely positionable to any position on the circle so that any particular carriage can be engaged; displaced to any desired new position; disengaged; and left clamped in the new position. An arcuate rule with an optical read head is also provided whereby the position of the arm is determined. The arm and the carriages are in an evacuated and thermally and structurally insulated housing.

    Abstract translation: 罗兰圆型光谱仪具有环形钢台,多个轮式支架支撑在该环形钢台上。 每个托架具有可远程操作的磁夹紧装置,以将其夹紧在工作台上。 每个托架还具有位于焦平面中的光入射狭缝,光电倍增管和用于将光从入射狭缝引导到光电倍增管的光纤。 提供了围绕中心轴枢转的定位臂。 臂在其自由端处具有可以远程操作以夹持任何所选托架的夹持装置。 手臂还可远程定位在圆圈上的任何位置,以便任何特定的托架可以接合; 转移到任何所需的新职位; 脱离 并左转夹在新位置。 还提供了具有光学读取头的弓形规则,由此确定臂的位置。 臂和托架处于抽真空和热和结构绝缘的外壳中。

    Spectrometer
    139.
    发明授权
    Spectrometer 失效
    光谱仪

    公开(公告)号:US4193691A

    公开(公告)日:1980-03-18

    申请号:US792676

    申请日:1977-05-02

    Inventor: Earl J. Fjarlie

    Abstract: The slit assembly of the present spectrometer comprises a liquid crystal cell. The electrodes of the cell are selectively actuated for producing a pattern of slits appropriate to the spectral lines of interest in the spectrum derived from the substance under analysis.

    Abstract translation: 本光谱仪的狭缝组件包括液晶单元。 选择性地致动电池的电极以产生适合于所分析的物质衍生光谱的感兴趣光谱线的狭缝图案。

    Optical slit control apparatus
    140.
    发明授权
    Optical slit control apparatus 失效
    光滑控制装置

    公开(公告)号:US4082461A

    公开(公告)日:1978-04-04

    申请号:US744361

    申请日:1976-11-23

    CPC classification number: G01J3/04

    Abstract: Apparatus for controlling the width of an adjustable slit in response to the product of two variable functions, one of which is programmed, which includes at least one adjustable optical slit; slit width programming apparatus for producing a first displacement that is a logarithmic function of the instantaneous slit width conforming to a predetermined program; antilogarithm generating elements for producing a second displacement that is the antilogarithm of the first displacement; a phase adjusting mechanism for controlling the phasing between the first displacement and the second displacement; slit width selection apparatus operative on the phase adjusting mechanism for controlling the phasing in accordance with a given slit width selection; and actuating elements responsive to the second displacement and operative on the optical slit for controlling its width.

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