VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES HOLOGRAMMS
    3.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES HOLOGRAMMS 审中-公开
    方法和制造装置中的全息图

    公开(公告)号:EP2983046A1

    公开(公告)日:2016-02-10

    申请号:EP15163225.4

    申请日:2015-04-10

    Abstract: Die Erfindung betrifft ein Verfahren zum Herstellen eines Hologramms, insbesondere eines Transmissionshologramms, umfassend: Bereitstellen von einem Aufzeichnungshologramm (703, 803, 1203), Belichten des Aufzeichnungshologramms (703, 803, 1203) mit einem durch
    eine kohärente Lichtquelle (809) erzeugten Objektstrahl (704, 804, 1204), wobei ein abzubildendes Objekt (711, 811,1231) in dem Objektstrahlengang vorgesehen ist, und Belichten des Aufzeichnungshologramms (703, 803, 1203) mit einem durch die kohärente Lichtquelle (809) erzeugten Referenzstrahl (705, 805, 1205), wobei der Referenzstrahl (705, 805, 1205) von einem optischen Referenzmodul (716, 816, 1230) derart winkelgeändert wird, dass der Referenzstrahl (705, 805, 1205) am Ort des Aufzeichnungshologramms (703, 803, 1203) ein Winkelspektrum aufweist.

    Abstract translation: 本发明涉及一种方法,用于制造全息图,尤其是透射全息图,包括:提供一种记录全息图(703,803,1203)时,记录的全息图的曝光(703,803,1203)由一个相干光源(809)由所生成的物体光束( 704,804,1204),其特征在于,要被成像的物体(711,811.1231)在物光束路径中,并暴露在记录全息图(703,803,1203)由一个产生的参考光束(由相干光源809)(705,805 ,1205),其中1230)是成角度地从光学参考模块(716,816改变,使得所述参考光束(705,805,1205),即在记录全息图(703,803,1203的位置处的参考光束(705,805,1205)) 具有角谱。

    Computer-generated hologram and its fabrication process, reflector using a computer-generated hologram, and reflective liquid crystal display
    5.
    发明公开
    Computer-generated hologram and its fabrication process, reflector using a computer-generated hologram, and reflective liquid crystal display 审中-公开
    计算机产生全息图和它的制造过程中,反射器与计算机生成的全息图和反射型液晶显示

    公开(公告)号:EP2506089A2

    公开(公告)日:2012-10-03

    申请号:EP12173655.7

    申请日:2001-05-29

    Abstract: The invention, provides a computer-generated hologram which can be viewed in white at the desired viewing region and a reflective liquid crystal display using the same as a reflector. The computer-generated hologram H is designed to diffuse light having a given reference wavelength λ STD and incident thereon at a given angle of incidence θ in a specific angle range. In a range of wavelengths λ MIN to λ MAX including the reference wavelength λ STD wherein zero-order transmission light or zero-order reflection light of incident light on the computer-generated hologram at a given angle of incidence is seen in white by additive color mixing, the maximum diffraction angle β 2MIN of incident light of the minimum wavelength λ MIN in the wavelength range and incident at the angle of incidence θ is larger than the minimum diffraction angle β 1MAX of incident light of the maximum wavelength λ MAX in the wavelength range and incident at said angle of incidence θ.

    Abstract translation: 本发明中,提供可在白色在期望的观看区域,并使用相同的反射器的反射型液晶显示被看作一个计算机生成的全息图。 该计算机生成的全息图H被设计成其上的光具有一个给定的参考波长“STD和入射在入射¸在特定角度范围内的给定角度扩散。 在一定范围的波长的“MIN为” MAX包括参考波长“STD worin零级透射光或在以入射角的一个给定的角度的计算机生成的全息图的入射光的零阶反射光在白色通过加色看到 混合,最大衍射角²最小波长的入射光的2MIN“以入射角¸的角度在波长范围MIN和入射大于最小衍射角较大²最大波长的入射光的1MAX” MAX在波长 范围和入射在入射¸的所述角度。

    SYNTHETIC COLOUR HOLOGRAM
    9.
    发明公开
    SYNTHETIC COLOUR HOLOGRAM 审中-公开
    合成彩色全息图

    公开(公告)号:EP1509817A1

    公开(公告)日:2005-03-02

    申请号:EP03738230.6

    申请日:2003-05-23

    CPC classification number: G03H1/041 G03H1/24 G03H1/26

    Abstract: A surface relief hologram that comprises two or more patterns, each pattern being sensitive to different radiation wavelengths. The hologram is made by defining relief features that are sensitive to different wavelengths, and in particular to one wavelength that is visible to the unaided human eye and to one wavelength that is invisible to the unaided human eye. These relief features of different sensitivities are interspersed over the surface of the substrate in which the hologram is defined. By providing two patterns of different sensitivities, when the hologram is used in a security device, security is improved. Despite this improved security, the hologram can be mass manufactured using known techniques.

    Holographic printer
    10.
    发明公开
    Holographic printer 审中-公开
    全息摄影师Drucker

    公开(公告)号:EP1394635A3

    公开(公告)日:2004-04-14

    申请号:EP03026373.5

    申请日:2000-12-08

    Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. In one embodiment the data are generated entirely by a computer as a 3-D (animated) model. In another embodiment the data are generated from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, which avoids the usual vibration problems encountered at high rates of production and the installation in normal working environments, is used to record composite holograms on an holographic emulsion using a special optical design. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods to produce full or single colour rainbow white-light transmission holograms, achromatic white-light transmission holograms or single or full-colour white-light reflection holograms. Alternatively the same invention and apparatus permits the direct writing of full or single colour rainbow white-light transmission composite holograms, achromatic white-light transmission composite holograms or single or full-colour white-light reflection composite holograms without the need to pass through the intermediate stage of the H1 transmission hologram. The present invention allows the creation of a compact rugged machine that is capable of producing holograms covering a large size range. In addition the invention produces holograms that can be tiled together to form composite holograms much larger than the component panels.

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