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    COMPACT LITTROW-TYPE SCANNING SPECTROGRAPH
    171.
    发明公开
    COMPACT LITTROW-TYPE SCANNING SPECTROGRAPH 审中-公开
    KOMPAKTER RASTERSPEKTROGRAPH DES LITTROW-TYPS

    公开(公告)号：EP1451541A4

    公开(公告)日：2008-08-13

    申请号：EP01988169

    申请日：2001-11-19

    Applicant: JOBIN YVON INC

    Inventor： JIANG WU ,  SLUTTER WARREN STEPHEN ,  LANGE KEVIN

    IPC: G01J3/02 ,  G01J3/22

    CPC classification number: G01J3/02 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0243 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/22

    Abstract: A Littrow-type spectrometer or monochromator using a folded light path to provide a compact optical instrument is disclosed. Light enters the instrument through an inlet aperture on a planar mirror. The aperture is located at the focus of a parabolic collimetor mirror. Collimated light reflected by the parabolic miror is reflected back to the planar mirror, which is positioned at an angle to the collimated light. The light reflected from the planar mirror is directed at a planar grating that produces diffracted light having all the wavelengths input into the system, including light of a selected wavelength, back towards the planar mirror. Light having the selected wavelength is thus caused to fall on the parabolic mirror. The parabolic mirror then focuses the selected wavelength of light ont a light exit aperture that is juxtaposed to the inlet light aperture. The planar grating can be rotatably mounted to scan the input light spectrum.

    Abstract translation: 公开了一种利用折叠光路来提供紧凑型光学仪器的利特罗型分光计或单色仪。 光线通过平面镜上的入口进入仪器。 光圈位于抛物面准直镜的焦点处。 由抛物镜反射的准直光被反射回平面镜，该平面镜与平行光成一定角度。 从平面镜反射的光被导向平面光栅，该平面光栅产生具有输入到系统中的所有波长的衍射光，包括选定波长的光回到平面镜。 具有选定波长的光因此落在抛物面镜上。 抛物面反射镜然后将选定波长的光聚焦在与入射光孔并列的光出射孔上。 平面光栅可旋转安装以扫描输入光谱。

    SPECTROSCOPIC DEVICE
    172.
    发明公开
    SPECTROSCOPIC DEVICE 审中-公开
    SPEKTROSKOPISCHE EINRICHTUNG

    公开(公告)号：EP1413860A1

    公开(公告)日：2004-04-28

    申请号：EP02743845.6

    申请日：2002-07-05

    Applicant: HAMAMATSU PHOTONICS K. K.

    Inventor： SAKAI, Shirou

    IPC: G01J3/36

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0235 ,  G01J3/0237 ,  G01J3/024 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/36 ,  G01N21/645 ,  G01N2021/6417 ,  G01N2021/6421 ,  G01N2021/6423

    Abstract: A spectroscopic system according to the present invention 10 comprises: an optical fiber bundle 12 whose emitting end 12a is arranged in a vertical direction; a slit 16 which is arranged so as to oppose the emitting end 12a of the optical fiber bundle 12; spectroscopic element arrangement means 20 which can switchably arrange either a first diffraction grating 23 in which grooves extending along the vertical direction are arranged in a horizontal direction at a predetermined groove density, or a second diffraction grating 24 in which grooves extending along the vertical direction are arranged in the horizontal direction at a groove density larger than that of the first diffraction grating 23, on an optical path of light which is emitted from the emitting end 12a of the optical fiber bundle 12 and passes through the slit 16; and a photomultiplier tube 30 in which a plurality of anodes 53 extending along the vertical direction are arranged in the horizontal direction.

    Abstract translation: 光谱装置（10）具有沿垂直方向排列有输出端（12a）的光纤束（12），与光纤束的输出端相对设置的狭缝（16），分光元件排列装置 （20），其能够在从所述束的输出端输出并通过所述狭缝的光的光路上布置第一衍射光栅（23），所述第一衍射光栅（23）设置有沿着垂直方向在水平方向上以指定线分散的水平延伸的凹槽， 第二衍射光栅（24），其设置有沿垂直方向延伸的凹槽，其以比水平方式的第一衍射光栅大的线分散度沿水平方向延伸，以便能够在衍射光栅之间切换;以及光电倍增器（30），其包括多个水平 - 沿着垂直方向延伸的阳极排（53）排列。

    Optical spectrum analyzer having double-pass monochromator
    174.
    发明公开
    Optical spectrum analyzer having double-pass monochromator 失效
    具有双通单色器的光谱分析仪

    公开(公告)号：EP0671615A3

    公开(公告)日：1995-09-20

    申请号：EP95108401.1

    申请日：1992-10-26

    Applicant: Hewlett-Packard Company

    Inventor： Wildnauer, Kenneth Richards ,  Stimple, James Roy ,  Knight, John Douglas ,  West, Joseph N. ,  Broome, Barry G.

    IPC: G01J3/18

    CPC classification number: G01J3/18 ,  G01J3/0221 ,  G01J3/2889 ,  G01J2003/062 ,  G01J2003/069 ,  G01J2003/1819 ,  G01J2003/1828

    Abstract: A scanning monochromator (FIG. 12) comprises means for providing an input light beam (INPUT LIGHT BEAM); a first stage monochromator (252) including a first diffraction grating for diffracting the input light beam (INPUT LIGHT BEAM) and means for rotating the first diffraction grating, the first stage monochromator (252) providing a first stage output light beam; a second stage monochromator (254) including a second diffraction grating for diffracting the first stage output light beam and means for rotating the second diffraction grating, the second diffraction grating diffracting the first stage output light beam such that said first stage output light beam is recombined by the second diffraction grating to provide a second stage output light beam (OUTPUT LIGHT BEAM); and an output aperture (256) for passing a selected portion of the second stage output light beam (OUTPUT LIGHT BEAM) to provide increased selectivity, whereby a high close-in dynamic range is achieved.

    Abstract translation: 扫描单色器（图12）包括用于提供输入光束（INPUT LIGHT BEAM）的装置; 包括用于衍射输入光束的第一衍射光栅（INPUT LIGHT BEAM）和用于旋转第一衍射光栅的装置的第一级单色器（252），第一级单色器（252）提供第一级输出光束; 包括用于衍射第一级输出光束的第二衍射光栅和用于旋转第二衍射光栅的装置的第二级单色器（254），第二衍射光栅衍射第一级输出光束使得所述第一级输出光束被重新组合 由第二衍射光栅提供第二级输出光束（OUTPUT LIGHT BEAM）; 以及用于使第二级输出光束（OUTPUT LIGHT BEAM）的选定部分通过以提供增加的选择性的输出孔径（256），由此实现高接近动态范围。

    High spatial resolution imaging spectrograph
    175.
    发明公开
    High spatial resolution imaging spectrograph 失效
    Abbildendes Spektralapparat mit hoherörtlicherAuflösung。

    公开(公告)号：EP0551241A1

    公开(公告)日：1993-07-14

    申请号：EP93630001.1

    申请日：1993-01-07

    Applicant: CHROMEX, INC.

    Inventor： Bret, Georges G.

    IPC: G01J3/28

    CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/0243 ,  G01J3/0291 ,  G01J3/2803 ,  G01J3/2823 ,  G01J2003/283

    Abstract: A high resolution fast imaging spectrograph is disclosed which provides 400 spatial channels and 100 spectral channels of information. A collimating mirror (10) and a focusing mirror (12) face a plane diffraction grating (14), which is positioned at an acute angle to the perpendicular to the optic axis. An elongated slot (16) is cut through approximately the center of the grating allowing the light source (18) to pass through the slot and onto the collimating mirror. A turning mirror (20), which is placed at the focus of the focusing mirror and adjacent to the slot, directs radiation to a camera mirror (22), which focuses a final image outside the instrument enclosure onto a detector (24). The light source to the instrument is provided by an optical fiber ribbon. The detector will commonly be a CCD or CID 2-D detector, permitting the simultaneous measurement of spectral distribution of a spatial profile. The instrument requires no power input, has no moving parts, and is completely passive with no operating controls or adjustments. Also disclosed is a commercially significant means to utilize the high spatial resolution imaging spectrograph in earth science remote imaging applications through the utilization of a reflecting telescope connected to the spectrograph by means of an optical fiber ribbon.

    Abstract translation: 公开了一种高分辨率快速成像光谱仪，其提供400个空间信道和100个光谱信道信道。 准直镜（10）和聚焦镜（12）面对平面衍射光栅（14），该平面衍射光栅位于与光轴垂直的锐角处。 细长槽（16）大致围绕光栅的中心切割，允许光源（18）穿过槽并进入准直镜。 放置在聚焦反射镜的焦点并与狭缝相邻的转向镜（20）将辐射引导到相机镜（22），照相镜将聚焦在仪器外壳外的最终图像聚焦到检测器（24）上。 仪器的光源由光纤带提供。 检测器通常是CCD或CID 2-D检测器，允许同时测量空间分布的光谱分布。 仪器不需要电源输入，没有移动部件，完全被动，无需操作控制或调节。 还公开了通过利用通过光纤带连接到光谱仪的反射望远镜来利用地球科学远程成像应用中的高空间分辨率成像光谱仪的商业上重要的手段。

    Optical spectrum analyzer having double-pass monochromator
    176.
    发明公开
    Optical spectrum analyzer having double-pass monochromator 失效
    Optischer Spektralanalysator mit einem Doppelmonchromromator。

    公开(公告)号：EP0540966A1

    公开(公告)日：1993-05-12

    申请号：EP92118251.5

    申请日：1992-10-26

    Applicant: Hewlett-Packard Company

    Inventor： Wildnauer, Kenneth Richards ,  Stimple, James Roy ,  Knight, John Douglas ,  West, Joseph N. ,  Broome, Barry G.

    IPC: G01J3/18 ,  G01J3/28

    CPC classification number: G01J3/18 ,  G01J3/0221 ,  G01J3/2889 ,  G01J2003/062 ,  G01J2003/069 ,  G01J2003/1819 ,  G01J2003/1828

    Abstract: A double-pass scanning monochromator (FIG. 1) for use in an optical spectrum analyzer (FIG. 11) includes an input optical fiber (10) for emitting an input light beam (12), a diffraction grating (16) for diffracting the input light beam (12) to produce a spatially dispersed light beam (20), a slit (24) for passing a selected portion of the dispersed light beam (20), a motor (90) for rotating the diffraction grating (16), a shaft angle encoder (92) for sensing grating position, an output optical fiber (42). The light (30) that passes through the slit (24) is directed to the diffraction grating (16) and is recombined by the diffraction grating (16) to produce an output light beam (36). The light beam (12) to be analyzed is incident on the diffraction grating (16) during first and second passes. A polarization rotation device (32) rotates the polarization components of the light beam (30) by 90° between the first and second passes so that the output of the monochromator (FIG. 1) is independent of the polarization of the input light beam (12). The output optical fiber (42) is translated by a micropositioning assembly (80) in a plane perpendicular to the output light beam (36) during rotation of the diffraction grating (16) to automatically track the output light beam (36) and to provide optical chopping.

    Abstract translation: 用于光谱分析仪（图11）的双通扫描单色仪（图1）包括用于发射输入光束（12）的输入光纤（10），衍射光栅（16） 输入光束（12）以产生空间分散的光束（20），用于使分散光束（20）的选定部分通过的狭缝（24）;用于旋转衍射光栅（16）的马达（90） 用于感测光栅位置的轴角编码器（92），输出光纤（42）。 穿过狭缝（24）的光（30）被引导到衍射光栅（16），并被衍射光栅（16）重新组合以产生输出光束（36）。 待分析的光束（12）在第一次和第二遍期间入射到衍射光栅（16）上。 偏振旋转装置（32）在第一遍和第二遍之间使光束（30）的偏振分量旋转90°，使得单色器（图1）的输出与输入光束的偏振无关（ 12）。 输出光纤（42）在衍射光栅（16）旋转期间在垂直于输出光束（36）的平面内由微定位组件（80）平移以自动跟踪输出光束（36）并提供 光斩

    Optical instrument employing fiber optics to direct light through tilting filter wheel
    180.
    发明公开
    Optical instrument employing fiber optics to direct light through tilting filter wheel 失效
    通过倾斜过滤器将光纤直接照射到光纤上的光学仪器

    公开(公告)号：EP0254204A3

    公开(公告)日：1989-02-08

    申请号：EP87110261.2

    申请日：1987-07-16

    Applicant: Pacific Scientific Company

    Inventor： Webster, Donald R.

    IPC: G01J3/10 ,  G01N21/31 ,  F21V8/00

    CPC classification number: G01N21/314 ,  G01J3/0221 ,  G01J3/10 ,  G01J2003/1243 ,  G01N2201/0826 ,  G02B6/0006

    Abstract: In an optical instrument, fiber optics are employed to receive light from a linear filament. The fiber optics are arranged into a plurality of light receiving bundle ends distributed around the linear filament and shaped into narrow rectangular slits aligned with the filament. The fibers from each of the receiving ends are equally distributed between two transmitting ends which direct the light through cylindrical lenses to opposite sides of a rotating filter wheel in a paddle wheel configuration. Light beams from the transmitting ends of the fiber optic bundles pass through filters on the filter wheel to additional fiber optic bundles which carry the received light to a probe.

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