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    Matrix addressable, line laser, marking system using laser additives
    4.
    发明授权
    Matrix addressable, line laser, marking system using laser additives 有权

    公开(公告)号：US11766874B2

    公开(公告)日：2023-09-26

    申请号：US17531098

    申请日：2021-11-19

    申请人： Xerox Corporation

    发明人： Peter J. Knausdorf ,  Anthony S. Condello ,  Jack T. Lestrange ,  Palghat S. Ramesh ,  Joseph C. Sheflin

    IPC分类号： B41J2/47 ,  G02B26/08 ,  G02B7/18 ,  B41M5/26

    CPC分类号： B41J2/471 ,  B41M5/267 ,  G02B7/1815 ,  G02B26/0833

    摘要： Apparatus and method for using a line laser (LL) to quickly mark a substrate or media by utilizing a laser additive on/within the substrate/media, which greatly reduces the power requirement for marking the substrate/media. The combination of the LL wide swath (>305 mm) and the improved media/surface sensitivity to laser wavelength allows the LL marking system to achieve faster marking than other systems. The LL is mounted over a transport which transports the sensitized substrate/media past the LL for marking. The desired image is projected from the LL line by line in synch with the moving media and once the media passes the beam path of the LL, marking is complete. In this case, the media has been physically-altered via the heat generated by the LL interacting with the photosensitized media and is permanent. A second method would use a photosensitizing agent coated on top of the media to be marked.

    Customizable document for producing a security document, customized security document and production of such a security document
    8.
    发明授权
    Customizable document for producing a security document, customized security document and production of such a security document 有权

    公开(公告)号：US10076922B2

    公开(公告)日：2018-09-18

    申请号：US15037973

    申请日：2014-09-25

    申请人： SURYS

    发明人： Alexandre Noizet ,  Valéry Petiton

    IPC分类号： B42D25/328 ,  B42D25/351 ,  B41M5/26 ,  B41M3/14 ,  B42D25/435 ,  B42D25/47

    CPC分类号： B42D25/328 ,  B41M3/14 ,  B41M5/267 ,  B42D25/351 ,  B42D25/435 ,  B42D25/45 ,  B42D25/47

    摘要： According to one aspect, the invention relates to a customizable document for producing a customized security document (10, 20). The customizable document includes, according to an alternative: a layer (12) which can be customized by contact-free writing an opaque customization mask that is transparent in at least one transparency area (121); a first multilayer film (102) arranged on a first side of the customizable layer (12), including a layer having a high refractive index and encapsulated between two layers having a low refractive index, and structured over at least a portion of the surface thereof such as to form a first subwavelength array, characterized by a first array vector, such that the first multilayer film acts at zero order as a wavelength subtractive filter; a second multilayer film (102) arranged on a second side of the customizable layer, opposite the first side, including a layer having a high refractive index and encapsulated between two layers having a low refractive index, and structured over at least a portion of the surface thereof such as to form a second subwavelength array characterized by a second array vector, such that the second multilayer film acts at zero order as a wavelength subtractive filter, the first and second arrays being at least partially stacked.