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    • 1. 发明授权
    • Method and apparatus for inspection of security articles incorporating a diffractive optical projection element
    • 用于检查包含衍射光学投影元件的安全物品的方法和装置
    • US07652757B2
    • 2010-01-26
    • US10585506
    • 2005-01-10
    • Gary Fairless PowerPatrick SwiftJames Hock Hai ChuaAnthony NardellaPaul Henson
    • Gary Fairless PowerPatrick SwiftJames Hock Hai ChuaAnthony NardellaPaul Henson
    • G06K9/74
    • G07D7/0032
    • A method and apparatus for inspection of a security article (10) is provided in which a substantially collimated light beam (15) from a point light source (14) is directed onto a diffractive optical projection element (DOE) (11). The light beam is transformed by the DOE (11) into a patterned beam (17) which is reconstructed to form a projected image at a particular position in space remote from the surface of the security article 910). An optical detection device 916) is located at which the patterned beam (17) is reconstructed to detect the projected image. The inspection method and apparatus may be used in equipment for handling, sorting, counting or otherwise processing security articles, in particular security documents such as banknotes. The apparatus may include a processor for generating a signal when the absence or poor quality of a DOE is detected and which is used to isolate or mark the security article.
    • 提供了一种用于检查安全物品(10)的方法和装置,其中来自点光源(14)的基本上准直的光束(15)被引导到衍射光学投影元件(DOE)(11)上。 光束被DOE(11)转换成图案化的光束(17),其被重构以在远离安全物体910的表面的空间中的特定位置处形成投影图像。 光学检测装置916)位于其上重建图案化束(17)以检测投影图像。 检查方法和装置可以用于处理,分类,计数或以其他方式处理安全物品的设备,特别是诸如纸币的安全文件。 该装置可以包括处理器,用于当检测到DOE的不存在或不良品质并且用于隔离或标记安全物品时产生信号。
    • 3. 发明申请
    • Method and Apparatus for Inspection of Security Articles
    • 检查安全用品的方法和装置
    • US20080046199A1
    • 2008-02-21
    • US10585506
    • 2005-01-10
    • Gary Fairless PowerPatrick SwiftJames Hock Hai ChuaAnthony NardellaPaul Henson
    • Gary Fairless PowerPatrick SwiftJames Hock Hai ChuaAnthony NardellaPaul Henson
    • G07D7/12
    • G07D7/0032
    • A method and apparatus for inspection of a security article (10) is provided in which a substantially collimated light beam (15) from a point light source (14) is directed onto a diffractive optical projection element (DOE) (11). The light beam is transformed by the DOE (11) into a patterned beam (17) which is reconstructed to form a projected image at a particular position in space remote from the surface of the security article 910). An optical detection device 916) is located at which the patterned beam (17) is reconstructed to detect the projected image. The inspection method and apparatus may be used in equipment for handling, sorting, counting or otherwise processing security articles, in particular security documents such as banknotes. The apparatus may include a processor for generating a signal when the absence or poor quality of a DOE is detected and which is used to isolate or mark the security article.
    • 提供了一种用于检查安全物品(10)的方法和装置,其中来自点光源(14)的基本上准直的光束(15)被引导到衍射光学投影元件(DOE)(11)上。 光束被DOE(11)转换成图案化的光束(17),其被重构以在远离安全物体910的表面的空间中的特定位置处形成投影图像。 光学检测装置916)位于其上重建图案化束(17)以检测投影图像。 检查方法和装置可以用于处理,分类,计数或以其他方式处理安全物品的设备,特别是诸如纸币的安全文件。 该装置可以包括处理器,用于当检测到DOE的不存在或不良品质并且用于隔离或标记安全物品时产生信号。
    • 6. 发明申请
    • Method and Apparatus for Manufacturing an Optical Component
    • 用于制造光学部件的方法和装置
    • US20080166528A1
    • 2008-07-10
    • US10597737
    • 2005-02-04
    • Gary Fairless PowerPaul HensonJohn GraceRoderick Andrew
    • Gary Fairless PowerPaul HensonJohn GraceRoderick Andrew
    • B29D11/00B32B3/00G03B27/72
    • B42D25/41B42D25/364B42D2033/26G02B5/3016G02F1/133788G02F2001/133715Y10T428/24802
    • A method and apparatus for manufacturing an optical component having at least one photo-oriented polymeric layer is provided. The apparatus includes a single source of laser radiation, beam splitting means for splitting the laser radiation into a first beam of linearly polarized light having a first plane of polarization (P) and a second beam of linearly polarized light having a second plane of polarization (S), first directing means for directing the first beam of linearly polarized light onto a first area or areas of at least one photo-orientatable polymeric layer to cause a first molecular orientation in said first area or areas of the layer and second directing means for directing the second beam of linearly polarized light onto said photo-orientatable polymeric layer to cause a second molecular orientation in a second area or areas of the layer. The apparatus includes delay means for the second beam of linearly polarized light so that the second beam arrives at the photo-orientatable polymeric layer a predetermined delay time after the first beam of linearly polarized light.
    • 提供一种用于制造具有至少一个光取向聚合物层的光学部件的方法和装置。 该装置包括单个激光辐射源,分束装置,用于将激光辐射分成具有第一偏振平面(P)的第一直线偏振光束和具有第二偏振平面的第二直线偏振光束( S),第一引导装置,用于将第一束线偏振光引导到至少一个可光取向聚合物层的第一区域或区域上,以在该层的第一区域或第二区域中引起第一分子取向和第二引导装置, 将第二束线偏振光引导到所述可光取向的聚合物层上以在该层的第二区域或区域中引起第二分子取向。 该装置包括用于第二光束线偏振光的延迟装置,使得第二光束在第一光束线偏振光之后到达可光取向聚合物层预定的延迟时间。