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    Micro-fluorescence capable micro-Raman spectrometer
    281.
    发明授权
    Micro-fluorescence capable micro-Raman spectrometer 有权

    公开(公告)号：US09995626B1

    公开(公告)日：2018-06-12

    申请号：US14884882

    申请日：2015-10-16

    Applicant: Dow Global Technologies LLC

    Inventor： Mary Anne Leugers

    IPC: G01J3/18 ,  G02B21/00 ,  G01J3/44 ,  A61B5/00

    CPC classification number: G01J3/18 ,  A61B5/0068 ,  G01J3/4406 ,  G01J3/4412 ,  G02B21/0024 ,  G02B21/0032 ,  G02B21/0076

    Abstract: A confocal microscope, operable to focus on any of a plurality of portions of a sample, is optically coupled to a light source and to a spectrograph module. When the confocal microscope focuses on a particular portion of the sample, the confocal microscope directs incident light from the light source to the particular portion and directs responsive light from the particular portion to the spectrograph module. The spectrograph module can be operated using a first diffraction grating having a first line density to obtain a Raman spectrum of the responsive light from the particular portion of the sample. The spectrograph module can also be operated using a second diffraction grating having a second line density that is less than the first line density to obtain a fluorescence or phosphorescence spectrum of the responsive light from the particular portion of the sample.

    METHOD OF SECURING A MODULATION RANGE
    283.
    发明申请
    METHOD OF SECURING A MODULATION RANGE 审中-公开

    公开(公告)号：US20180156664A1

    公开(公告)日：2018-06-07

    申请号：US15828512

    申请日：2017-12-01

    Applicant: SICK AG

    Inventor： Julian EDLER ,  Thomas BEYER ,  Samson FRANK

    IPC: G01J3/51 ,  G02B27/10 ,  G01J3/18

    CPC classification number: G01J3/51 ,  G01J3/027 ,  G01J3/10 ,  G01J3/18 ,  G01J3/42 ,  G01N21/274 ,  G01N21/39 ,  G01N2021/399 ,  G02B27/10 ,  H01S3/1305

    Abstract: A method of securing a modulation range of a wavelength-variable radiation source as part of the measurement of an absorption line of a substance comprises: the radiation source being controlled to transmit radiation such that the wavelength of the radiation runs through the modulation range in accordance with a time pattern; the radiation being filtered by means of a filter in whose pass band the absorption line is disposed and which has at least one filter flank whose actual wavelength is within the modulation range; a spectrum of the filtered radiation being determined in that the intensity of the filtered radiation is detected with respect to the time pattern; and a determination being made whether the spectrum has the at least one filter flank.

    Imaging spectrometer design tool for evaluating freeform optics
    286.
    发明授权
    Imaging spectrometer design tool for evaluating freeform optics 有权

    公开(公告)号：US09964444B2

    公开(公告)日：2018-05-08

    申请号：US15168015

    申请日：2016-05-28

    Applicant: Jannick P. Rolland ,  Jacob Reimers

    Inventor： Jannick P. Rolland ,  Jacob Reimers

    IPC: G06T11/20 ,  G01J3/28

    CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/027 ,  G01J3/0289 ,  G01J3/18

    Abstract: A full-field display for spectrally dispersive imaging optics, particularly as a design tool for evaluating optical designs including designs with freeform optical surfaces, includes a ray tracing module arranged for modeling local aberrations throughout the image field of the spectrometer and a display module that converts values of the modeled local aberrations throughout the image field into representative symbols. The spectrometer field has a first spatial dimension corresponding to a length dimension of an input and a second spectral dimension corresponding to the dispersion of the input. The representative symbols are plotted in an array having a first axis corresponding to the first spatial dimension of the image field and a second axis corresponding to the second spectral dimension of the image field.

    IMAGING SPECTROMETER WITH REFLECTIVE GRATING
    289.
    发明申请
    IMAGING SPECTROMETER WITH REFLECTIVE GRATING 审中-公开

    公开(公告)号：US20180094977A1

    公开(公告)日：2018-04-05

    申请号：US15718475

    申请日：2017-09-28

    Applicant: European Space Agency

    Inventor： Matteo Taccola

    IPC: G01J3/26 ,  G02B17/06 ,  G02B5/18 ,  G01J3/18 ,  G01J3/28

    CPC classification number: G01J3/26 ,  G01J3/021 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/1809 ,  G01J3/2823 ,  G01J2003/262 ,  G02B5/1861 ,  G02B17/061 ,  G02B17/0615

    Abstract: An imaging spectrometer receives a beam of light from a slit and outputs the beam of light to a focal plane. The output beam of light at the focal plane is dispersed in accordance with a spectral composition of the beam of light received from the slit. The imaging spectrometer comprises first to fourth curved reflective portions. The first to fourth curved reflective portions are arranged so that the beam of light, in its passage from the slit to the focal plane, sequentially strikes the first to fourth curved reflective portions and is reflected by the first to fourth curved reflective portions. Further, the first to fourth curved reflective portions are alternatingly concave or convex, respectively, along the passage of the beam of light. At least one of the first to fourth curved reflective portions has a reflective grating structure. Further disclosed is a method of manufacturing such imaging spectrometer.

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