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    Image forming apparatus
    23.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US10097744B2

    公开(公告)日：2018-10-09

    申请号：US15795481

    申请日：2017-10-27

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Katsuhiro Kanamori ,  Jun Ozawa

    IPC: G01J4/00 ,  H04N5/225 ,  H04N5/345 ,  G02B27/28 ,  H04N5/235

    Abstract: An image forming apparatus includes an illumination device, a beam splitter, an imaging device, and an image forming circuit. The illumination device includes first emitters emitting first light polarized at 30°, second emitters emitting second light polarized at 90°, and third emitters emitting third light polarized at 150°, and illuminates a subject with the first, second, and/or third light. The beam splitter splits returning light and outputs a first component polarized at 0°, a second component polarized at 60°, and a third component polarized at 120°. The imaging device has an imaging surface that includes a first region receiving the first component, a second region receiving the second component, and a third region receiving the third component. The image forming circuit generates an image of the subject based on first, second, and third groups of images acquired when the subject is illuminated with the first, second, and third light.

    Device and method for remote polarimetric characterization
    24.
    发明授权
    Device and method for remote polarimetric characterization 有权

    公开(公告)号：US10094766B2

    公开(公告)日：2018-10-09

    申请号：US15126798

    申请日：2015-02-18

    Applicant: Centre National de la Recherche Scientifique—CNRS ,  Ecole Polytechnique

    Inventor： Antonello De Martino ,  Dominique Pagnoux ,  Jérémy Vizet ,  Sandeep Manhas ,  Jean-Charles Vanel ,  Stanislas Deby

    IPC: G01J4/00 ,  G01N21/21 ,  A61B1/07

    Abstract: According to one aspect, the invention relates to a device (100) for remote polarimetric characterization of a sample (S). It comprises a source (10) for emitting at least one incident light wave at at least one first wavelength (λE); a monomode optical fiber (30) in which the incident light wave is intended to propagate; a polarization state generator (PSG) arranged on the proximal side of the optical fiber; a reflector (40) intended to be arranged on the distal side of the optical fiber; a polarization state analyzer (PSA) arranged on the proximal side of the optical fiber and allowing, for each probe state of the incident wave generated by the polarization state generator, the polarization of the light wave obtained after propagation of the incident wave in the optical fiber (30), reflection from the distal side of the optical fiber and reverse propagation in the optical fiber (30), to be analyzed. Processing means (70) make it possible to determine, from a first polarimetric characterization of the optical fiber, a Mueller matrix (MF) associated with the optical fiber, and, from a second polarimetric characterization of the assembly comprising the optical fiber and the sample, a Mueller matrix (MT) associated with said assembly. The Mueller matrix (Mo) associated with the sample is determined from the Mueller matrices associated with the optical fiber and the assembly comprising the optical fiber and the sample, respectively.

    Image forming device
    25.
    发明授权
    Image forming device 有权

    公开(公告)号：US10088409B2

    公开(公告)日：2018-10-02

    申请号：US15792804

    申请日：2017-10-25

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Katsuhiro Kanamori ,  Jun Ozawa

    IPC: G01J4/00 ,  G01N21/21 ,  G02B27/28 ,  G01N21/88 ,  A61B3/14 ,  G01N21/958

    Abstract: Images are formed from first and second polarized images acquired through illumination of the subject with first illumination light beams, and third and fourth polarized images acquired through illumination of the subject with second illumination light beams. Images of a subject are formed from translated first, second, third, and fourth polarized images, acquired from first and second luminous point images. The first bright spots appear on the first polarized image when the first illumination light beams are mirror-reflected off the subject. The second bright spots appear on the fourth polarized image when the second illumination light beams are mirror-reflected off the subject. The image forming circuit forms images of the subject by calculating a difference between a first average image, obtained by averaging the translated first and fourth polarized images, and a second average image, obtained by averaging the translated second and third polarized images.

    Information maintenance, intensity attenuation, and angle/plane of incidence control in electromagentic beams
    26.
    发明授权
    Information maintenance, intensity attenuation, and angle/plane of incidence control in electromagentic beams 有权

    公开(公告)号：US10066989B1

    公开(公告)日：2018-09-04

    申请号：US15330353

    申请日：2016-09-09

    Applicant: J.A. WOOLLAM CO., INC

    Inventor： Martin M. Liphardt ,  Ping He

    IPC: G01J4/00 ,  G01J3/02 ,  G01J4/04

    Abstract: A system for providing variable wavelength intensity attenuation to said focused beams by application of an aperture-like element that comprises at least two regions of “filter” material, or comprises different materials graded into one another, which different materials that have different responses to different wavelengths, wherein said system is applied to reduce differences in wavelength intensity levels when applied in collimated portions of a beam as a Spectral Angle Adjustor (SAA) or to preserve information in a beam while changing said beam effective diameter as a Spectral Aperture Stop (SAS); or to affect a Spectral Field Stop (SFS) that controls source image size when applied at a convergent/divergent beam focal point as a Spectrally Varying Aperture, (SVA) the end result depending on where in a beam it is applied.

    Obtaining spectral information from moving objects
    27.
    发明授权
    Obtaining spectral information from moving objects 有权

    公开(公告)号：US10048192B2

    公开(公告)日：2018-08-14

    申请号：US14576155

    申请日：2014-12-18

    Applicant: Palo Alto Research Center Incorporated

    Inventor： Alex Hegyi

    IPC: G01J4/00 ,  G01N15/14 ,  G01N21/64 ,  G01N15/10

    Abstract: An optical device includes a first polarizer arranged to receive light emanating from an object moving along a trajectory. The first polarizer polarizes the light emanating from the object along a first polarization direction. A waveplate that has an optical retardance that varies as a function of position along the trajectory receives light from the first polarizer. The slow axis of the waveplate is at a first angle with respect to the first polarization direction. A second polarizer is arranged to receive light from the waveplate. The second polarizer polarizes light along a second polarization direction. At least one detector receives light from the second polarizer and provides an electrical output signal that varies with time according to intensity of the light received from the second polarizer.

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