中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

447 records (took 0.018 seconds)

    COLOR HOLOGRAPHIC FOIL
    1.
    发明申请
    COLOR HOLOGRAPHIC FOIL 审中-公开

    公开(公告)号：WO2023044546A1

    公开(公告)日：2023-03-30

    申请号：PCT/BG2021/050003

    申请日：2021-11-09

    Applicant: DEMAX - HOLOGRAMS AD

    Inventor： MONOVSKI, Valentin Konstantinov ,  AKUZOV, Danail Trendafilov ,  IVANOVSKYI, Andrii ,  POHAN, Ihnat ,  STOILOV, Georgi Ivanov ,  DOBREV, Mario Rumenov ,  DELCHEV, Ivo Rumenov

    IPC: G03H1/00 ,  G03H1/02 ,  B42D25/328

    Abstract: The invention refers to a color holographic foil for protection of goods and documents from forgery and falsification. It includes successively placed foil base (1), release layer (2), embossing layer (3), reflective layer (4) and adhesive layer (5). The embossing layer comprises smooth areas (6) and micro-relief areas (7). The thickness of the optical reflective layer (4) is inversely proportional to the depth of the depressions in the micro-relief areas. At least two of the micro-relief areas are dyed areas (10) with embossing layer colored with a dye in different saturations of a single color tone. The saturation is directly proportional to the depth of the depressions. At least one dyed area is a multi-bonded area (11), having at least one micro-relief boundary (12) and at least one smooth boundary (13). The topography of the micro-relief in said multi-bonded areas is different from the topography of the neighboring dyed areas.

    METHODS AND SYSTEMS FOR MINIMIZING HAZE DURING HOLOGRAPHIC RECORDING
    4.
    发明申请
    METHODS AND SYSTEMS FOR MINIMIZING HAZE DURING HOLOGRAPHIC RECORDING 审中-公开

    公开(公告)号：WO2022165514A1

    公开(公告)日：2022-08-04

    申请号：PCT/US2022/070410

    申请日：2022-01-28

    Applicant: DIGILENS INC.

    Inventor： CALLENS, Michiel Koen ,  POPOVICH, Milan Momcilo ,  GRANT, Alastair John

    IPC: G03H1/00 ,  G03H1/02 ,  G03H1/04 ,  G11B7/08 ,  G03H1/10 ,  G03H1/12 ,  G11B7/09 ,  G11B7/095

    Abstract: Methods and systems for forming holographic gratings are described herein. The methods and systems may decrease the amount of haze produced during exposure of a holographic recording medium. In some embodiments, the methods and systems include a holographic recording medium; a master hologram containing a grating; and a light source and moveable deflector configured to diffract light through the master hologram into the holographic medium to form a holographic interference pattern. The moveable deflector is configured to move in a direction parallel to the extending direction of the grating. Advantageously, moving the light in this direction allows the holographic interference pattern to remain stationary while there is a spatio-temporal displacement and cancellation of unwanted intensity nonuniformities.

    CALIBRATION OF DEVICES FOR OPTICAL ANALYSIS OF BLOOD SAMPLES
    5.
    发明申请
    CALIBRATION OF DEVICES FOR OPTICAL ANALYSIS OF BLOOD SAMPLES 审中-公开

    公开(公告)号：WO2022152543A1

    公开(公告)日：2022-07-21

    申请号：PCT/EP2021/087485

    申请日：2021-12-23

    Applicant: TECHNISCHE UNIVERSITÄT MÜNCHEN

    Inventor： UGELE, Matthias ,  KLENK, Christian ,  HAYDEN, Oliver ,  KASPERS, Bernd ,  BURKHARDT, Nina ,  RÖHRL, Stefan ,  HEIM, Dominik

    IPC: G01N15/10 ,  G03H1/04 ,  G03H1/00 ,  G01N15/14 ,  G01N15/00

    Abstract: Disclosed herein is a method of calibrating a device for optical analysis of a sample containing biological cells, a device for optical analysis of a sample containing biological cells, a calibration sample kit for calibrating a device for optical analysis of a sample containing biological cells and a computer program product. The method of calibrating a device for optical analysis of a sample containing biological cells comprises providing a calibration sample comprising one or more red blood cells having a nucleus. A first optical distance value and a second optical distance value are determined using the device. The first optical distance value characterizes an optical path length along a first optical path extending through the nucleus of a target cell selected from the one or more red blood cells. The second optical distance value characterizes an optical path length along a second optical path extending through the target cell, but not through the nucleus of the target cell. The first and second optical distance values are compared to one or more reference values. Based on the comparison of the determined optical distance values and the respective reference values it is determined whether the device is functional.

    METHOD AND ARRANGEMENT FOR HOLOGRAPHIC NANOPARTICLE TRACKING ANALYSIS (H-NTA) IN A DIGITAL HOLOGRAPHIC MICROSCOPE
    6.
    发明申请
    METHOD AND ARRANGEMENT FOR HOLOGRAPHIC NANOPARTICLE TRACKING ANALYSIS (H-NTA) IN A DIGITAL HOLOGRAPHIC MICROSCOPE 审中-公开

    公开(公告)号：WO2022123065A1

    公开(公告)日：2022-06-16

    申请号：PCT/EP2021/085318

    申请日：2021-12-10

    Applicant: HOLTRA AB [SE]/[SE]

    Inventor： MIDTVEDT, Daniel ,  OLSÉN, Erik ,  MIDTVEDT, Benjamin ,  EKLUND, Fredrik

    IPC: G03H1/04 ,  G03H1/08 ,  G03H1/16 ,  G01N15/02 ,  G01N15/14 ,  G03H1/00 ,  G01N15/00

    Abstract: The invention relates to a digital holographic microscope, DHM. The DHM comprises a coherent light source (401, 501) for illuminating a sample in a sample holder in a first image plane (101,201,407, 507). The DHM further comprises a detector, e.g. a camera (412, 512), arranged to record images of the sample in the sample holder. The DHM further comprises means for dividing the base light beam into different portions and causing the different portions of the light beam to interfere with each other at the detector and a light beam guiding system for guiding a light beam to the sample and the detector. The DHM further comprises a light reducing arrangement for reducing the intensity of the light in the light beam directed to the sample. The light reducing arrangement includes a first lens (102) for collimating the light in the first divided beam scattered by a particle (106) comprised in the sample and a spatial filter (108, 206, 413) arranged at or in the vicinity of the focal plane (103, 203) of said first lens (102) in order to reduce the intensity of the focused light passing through the sample located in the first image plane (101, 201, 307, 407). By this arrangement, the majority of unscattered light passing through the sample is filtered off and the majority of the light scattered by a particle (106) in the sample is guided via a light guiding system to the detector.

    METHOD AND ARRANGEMENT FOR HOLOGRAPHIC NANOPARTICLE TRACKING ANALYSIS (H-NTA) IN A DIGITAL HOLOGRAPHIC MICROSCOPE
    7.
    发明申请
    METHOD AND ARRANGEMENT FOR HOLOGRAPHIC NANOPARTICLE TRACKING ANALYSIS (H-NTA) IN A DIGITAL HOLOGRAPHIC MICROSCOPE 审中-公开

    公开(公告)号：WO2022123064A1

    公开(公告)日：2022-06-16

    申请号：PCT/EP2021/085317

    申请日：2021-12-10

    Applicant: HOLTRA AB [SE]/[SE]

    Inventor： MIDTVEDT, Daniel ,  OLSÉN, Erik ,  MIDTVEDT, Benjamin ,  EKLUND, Fredrik

    IPC: G03H1/04 ,  G03H1/08 ,  G03H1/16 ,  G01N15/02 ,  G01N15/14 ,  G06T7/00 ,  G03H1/00 ,  G01N15/00

    Abstract: The invention relates to a digital holographic microscope, DHM. The DHM comprises a coherent light source (401, 501) for illuminating a sample in a sample holder in a first image plane (101,201,407, 507). The DHM further comprises a detector, e.g. a camera (412, 512), arranged to record images of the sample in the sample holder. The DHM further comprises a first beam splitter (404, 511) for dividing the base light beam from the coherent light source (401, 501) into at least a first divided beam and a second divided beam and a light beam guiding system for guiding a light beam to the sample and reunite the first and second divided beam upstream the detector. The DHM further comprises a light reducing arrangement for reducing the intensity of the light in the first divided beam. The light reducing arrangement includes a first lens (102) for collimating the light in the first divided beam scattered by a particle (106) comprised in the sample and a spatial filter (108, 206, 413) arranged at or in the vicinity of the focal plane (103, 203) of said first lens (102) in order to reduce the intensity of the focused light passing through the sample located in the first image plane (101, 201, 307, 407). By this arrangement, the majority of unscattered light passing through the sample is filtered off and the majority of the light scattered by a particle (106) in the sample is guided via a light guiding system to reunite with the reference beam.

    DARK FIELD DIGITAL HOLOGRAPHIC MICROSCOPE AND ASSOCIATED METROLOGY METHOD
    8.
    发明申请
    DARK FIELD DIGITAL HOLOGRAPHIC MICROSCOPE AND ASSOCIATED METROLOGY METHOD 审中-公开

    公开(公告)号：WO2022100939A1

    公开(公告)日：2022-05-19

    申请号：PCT/EP2021/077753

    申请日：2021-10-07

    Applicant: ASML NETHERLANDS B.V.

    Inventor： PANDEY, Nitesh ,  DEN BOEF, Arie, Jeffrey ,  CRAMER, Hugo, Augustinus, Joseph ,  TENNER, Vasco, Tomas

    IPC: G03H1/04 ,  G03F7/20 ,  G03H1/00 ,  G03H1/26

    Abstract: A dark field digital holographic microscope and associated metrology method is disclosed which is configured to determine a characteristic of interest of a structure. The dark field digital holographic microscope comprises an illumination branch for providing illumination radiation to illuminate said structure; an detection arrangement for capturing object radiation resulting from diffraction of the illumination radiation by said structure; and a reference branch for providing reference radiation for interfering with the object beam to obtain an image of an interference pattern formed by the illumination radiation and reference radiation. The reference branch has an optical element operable to vary a characteristic of the reference radiation so as to reduce and/or minimize variation in a contrast metric of the image within a field of view of the dark field digital holographic microscope at a detector plane.

    A MODULE FOR GENERATING AN INTERFERENCE PATTERN FOR PRODUCING A DIGITAL HOLOGRAPHIC IMAGE, A RELATED METHOD, AND A DIGITAL HOLOGRAPHIC MICROSCOPE
    9.
    发明申请
    A MODULE FOR GENERATING AN INTERFERENCE PATTERN FOR PRODUCING A DIGITAL HOLOGRAPHIC IMAGE, A RELATED METHOD, AND A DIGITAL HOLOGRAPHIC MICROSCOPE 审中-公开

    公开(公告)号：WO2022013178A1

    公开(公告)日：2022-01-20

    申请号：PCT/EP2021/069390

    申请日：2021-07-13

    Applicant: WESTFÄLISCHE WILHELMS-UNIVERSITÄT MÜNSTER

    Inventor： KEMPER, Björn

    IPC: G03H1/04 ,  G02B21/00 ,  G02B27/09 ,  G03H1/00

    Abstract: In various embodiments a module for generating an interference pattern for producing a digital holographic image is provided. The module comprises an adaptive lens arrangement configured to receive, from a microscope, an object wave of an intermediate image of a sample to be examined, and to generate an adapted object wave of the intermediate image of the sample by reducing a curvature of the object wave of the intermediate image; a reference input interface configured to receive an optical fiber delivering a reference wave from the coherent light source to the module and an interference arrangement configured to generate an interference pattern to be received by an imaging sensor arrangement, wherein the interference pattern is based on the adapted object wave and the reference wave from a coherent light source; wherein a position of the reference input interface of the module is configured to be adjustable with respect to at least two directions (x-y), wherein at least one of the adjustable directions is in parallel to a propagation direction of the reference wave leaving the optical fiber.

Patent Agency Ranking