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公开(公告)号：EP0531605B1
公开(公告)日：1998-12-16
申请号：EP92101231.6
申请日：1992-01-27
申请人： NHK SPRING CO.LTD.
发明人： Hoshino, Hidekazu , Takeuchi,Itsuo
IPC分类号： G06K19/16
CPC分类号： G06K19/16 , B42D25/328
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公开(公告)号：EP0568185A3
公开(公告)日：1994-06-29
申请号：EP93302213.9
申请日：1993-03-23
申请人： NHK SPRING CO.LTD.
发明人： Hoshino, Hidekazu , Haga, Hidemi
IPC分类号： G06K19/16
CPC分类号： G06K19/16
摘要： Provided is a system for identifying the authenticity of an article which is reliable, and would not restrict the freedom of design. An identification region is defined on the article for identification purpose. The identification region comprises a light reflecting layer which is adapted to transmit visible light and reflect light of a certain wavelength other outside the visible light band with a certain diffractive property. Therefore, the identification region is hardly visible to human eyes, and this not only discourages an attempt to counterfeit the identification region but also would not affect the external appearance of the article. Further, the visible light which has passed through the reflecting layer and reflected by the surface of the article itself or an underlying layer is prevented from reaching the light detecting device so that spurious noises which may disturb the identification process can be eliminated.
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公开(公告)号：EP0590826A3
公开(公告)日：1994-08-24
申请号：EP93307235.7
申请日：1993-09-14
申请人： NHK SPRING CO.LTD.
CPC分类号： G06K7/10831 , G03H1/0011 , G03H1/0244 , G03H1/0252 , G03H1/0272 , G03H2222/31 , G03H2240/55 , G03H2250/36 , G03H2250/41 , G06K19/06009 , G06K19/16 , G06K2019/0629
摘要： Provided is an identification system which is highly effective in identifying the authenticity of an object and extremely difficult to analyze for the purpose of forgery. The object to be identified is affixed with an identification element comprising a reflective layer including a hologram, a diffraction grating or the like, which directs incident light of a prescribed wave length into a plurality of point symmetric directions, and a polarization plane rotating layer which rotates the polarization plane of the light as it passes through the polarization rotating layer.
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公开(公告)号：EP0568186A3
公开(公告)日：1994-07-13
申请号：EP93302214.7
申请日：1993-03-23
申请人： NHK SPRING CO.LTD.
CPC分类号： G06K19/06018 , G06K19/16 , G06K2019/0629
摘要： Each identification mark consisting of hologram or diffraction grating having a unique diffractive property which can be detected with optical identification means is formed on a seal, and, by affixing such seals as a combination and reading them, the analysis or forgery of each identification mark is made highly difficult. Since the possible modes of combination and the possible number of combinations can be freely and easily selected, high levels of expandability, identification power and handling facility can be achieved at a relatively low cost. This system can be applied to various articles such as information storage cards including magnetic cards, and keys. By using the system for verifying the authenticity of the article, an effective prevention of the counterfeiting of the article can be achieved.
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公开(公告)号：EP0568185A2
公开(公告)日：1993-11-03
申请号：EP93302213.9
申请日：1993-03-23
申请人： NHK SPRING CO.LTD.
发明人： Hoshino, Hidekazu , Haga, Hidemi
IPC分类号： G06K19/16
CPC分类号： G06K19/16
摘要： Provided is a system for identifying the authenticity of an article which is reliable, and would not restrict the freedom of design. An identification region is defined on the article for identification purpose. The identification region comprises a light reflecting layer which is adapted to transmit visible light and reflect light of a certain wavelength other outside the visible light band with a certain diffractive property. Therefore, the identification region is hardly visible to human eyes, and this not only discourages an attempt to counterfeit the identification region but also would not affect the external appearance of the article. Further, the visible light which has passed through the reflecting layer and reflected by the surface of the article itself or an underlying layer is prevented from reaching the light detecting device so that spurious noises which may disturb the identification process can be eliminated.
摘要翻译： 提供了一种用于识别可靠的物品的真实性的系统，并且不会限制设计的自由度。 在物品上定义识别区域用于识别目的。 识别区域包括光反射层，该光反射层适于透射可见光并以某种衍射特性反射可见光带外的特定波长的光。 因此，识别区域对于人眼几乎不可见，这不仅阻止了伪造识别区域的尝试，而且也不会影响物品的外观。 此外，通过反射层并被物品本身的表面或下层反射的可见光被防止到达光检测装置，从而可以消除可能干扰识别过程的杂散噪声。
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公开(公告)号：EP0533448A3
公开(公告)日：1993-08-25
申请号：EP92308411.5
申请日：1992-09-16
申请人： NHK SPRING CO.LTD.
发明人： Hoshino, Hidekazu , Haga, Hidemi
摘要： . To prevent unauthorized duplication of an information storage cards such as magnetic cards, IC cards, and optical cards, the card carries an identification region which may be identified by a simple optical sensor. The identification region may consist of holograph, diffraction grating, a multiplicity of parallel grooves and other processed surfaces having certain reflective or transmissive directivities. In particular, the identification region comprises a plurality of segments having two or more different reflective or transmissive directivities, and these segments are uniformly distributed in the identification region so that all of the segments may be accessed simultaneously by the optical sensor which comprises a light emitter and a light receiver including a plurality of parts each capable of individually detecting light reflected by or transmitted through the identification region.
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公开(公告)号：EP0531605A1
公开(公告)日：1993-03-17
申请号：EP92101231.6
申请日：1992-01-27
申请人： NHK SPRING CO.LTD.
发明人： Hoshino, Hidekazu , Takeuchi,Itsuo
IPC分类号： G06K19/16
CPC分类号： G06K19/16 , B42D25/328
摘要： An optical identification label (3) consisting of an area of hologram (10) or diffraction grating which is transparent to visible light but reflects incident light with a specific reflective directivity. By identifying the reflectivity directivity, it is possible to identify the authenticity of the label (3) and, hence the object to which the identification label is affixed. The fact that the identification label (3) is transparent to human eyes offers a strong discouraging effect on potential forgers. Further, the pattern of the reflected light may be used for encoding data.
摘要翻译： 由全息图（10）的区域构成的光学识别标签（3）或对可见光透明但反射具有特定反射方向性的入射光的衍射光栅。 通过识别反射率方向性，可以识别标签（3）的真实性，并因此识别标识标签被贴上的对象。 识别标签（3）对人眼透明的事实为潜在的伪造者提供了强烈的阻止作用。 此外，反射光的图案可以用于编码数据。
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公开(公告)号：EP1003126A2
公开(公告)日：2000-05-24
申请号：EP99309101.6
申请日：1999-11-16
申请人： NHK SPRING CO.LTD.
CPC分类号： B42D25/328 , B42D25/00 , B42D25/364 , B42D2033/26 , G06K7/12 , G06K19/16 , G07D7/121
摘要： The object to be identified is affixed with an identification medium comprising a reflective layer consisting of a reflective hologram or diffraction grating. The high polymer cholesteric liquid crystal provides an inexpensive identification medium, and the use of the second light receiving unit for providing a reference signal provides a high S/N output signal which is highly distinct and resistant to the contamination of the identification medium. Also, the elimination of the need for expensive optical elements such as beam splitters also contributes to the reduction of cost.
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公开(公告)号：EP0590826A2
公开(公告)日：1994-04-06
申请号：EP93307235.7
申请日：1993-09-14
申请人： NHK SPRING CO.LTD.
CPC分类号： G06K7/10831 , G03H1/0011 , G03H1/0244 , G03H1/0252 , G03H1/0272 , G03H2222/31 , G03H2240/55 , G03H2250/36 , G03H2250/41 , G06K19/06009 , G06K19/16 , G06K2019/0629
摘要： Provided is an identification system which is highly effective in identifying the authenticity of an object and extremely difficult to analyze for the purpose of forgery. The object to be identified is affixed with an identification element comprising a reflective layer including a hologram, a diffraction grating or the like, which directs incident light of a prescribed wave length into a plurality of point symmetric directions, and a polarization plane rotating layer which rotates the polarization plane of the light as it passes through the polarization rotating layer.
摘要翻译： 提供了一种识别系统，其在识别对象的真实性方面非常有效，并且为了伪造而非常难以分析。 要识别的对象被固定有识别元件，该识别元件包括将包括规定波长的入射光引导成多个点对称方向的全息图，衍射光栅等的反射层，以及偏振面旋转层， 当光通过偏振旋转层时，使光的偏振平面旋转。 线偏振光照射在识别元件上，并被以环形方式布置的多分辨率光电二极管接收。 位于直径线一侧的那些光电二极管部分被第一滤光片覆盖，该第一滤光器适于基本上只透射从所述识别元件发射的光，其中所述偏振平面由所述偏振平面旋转层旋转，而剩余的部分被第二滤光片覆盖 适于基本上只透过从所述识别元件发射的光，其偏振平面不被所述偏振面旋转层旋转。 因此，通过检测由每对直径相对的光电二极管部分接收的光的强度比，可以可靠地检测识别元件的真实性或对象的真实性。
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公开(公告)号：EP0568186A2
公开(公告)日：1993-11-03
申请号：EP93302214.7
申请日：1993-03-23
申请人： NHK SPRING CO.LTD.
CPC分类号： G06K19/06018 , G06K19/16 , G06K2019/0629
摘要： Each identification mark consisting of hologram or diffraction grating having a unique diffractive property which can be detected with optical identification means is formed on a seal, and, by affixing such seals as a combination and reading them, the analysis or forgery of each identification mark is made highly difficult. Since the possible modes of combination and the possible number of combinations can be freely and easily selected, high levels of expandability, identification power and handling facility can be achieved at a relatively low cost. This system can be applied to various articles such as information storage cards including magnetic cards, and keys. By using the system for verifying the authenticity of the article, an effective prevention of the counterfeiting of the article can be achieved.
摘要翻译： 由密封件形成由具有独特的衍射特性的全息图或衍射光栅构成的每个识别标记，其中可以用光学识别装置进行检测，并且通过将这种密封件作为组合和读取它们进行粘贴，每个识别标记的分析或伪造是 非常困难。 由于组合的可能模式和组合的可能数量可以自由和容易地选择，所以可以以相对低的成本实现高水平的可扩展性，识别能力和处理设施。 该系统可以应用于各种物品，例如包括磁卡和钥匙的信息存储卡。 通过使用系统验证物品的真实性，可以有效地防止制品的伪造。
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