The present invention discloses an optical anti-counterfeiting component and an optical anti-counterfeiting product. The optical anti-counterfeiting component comprises: a substrate; a sub-wavelength surface micro-structure and an optical reflection facet formed on an upper surface of the substrate; and a multi-layer structured coating formed on the sub-wavelength surface micro-structure and the optical reflection facet. In the case where the same multi-layer structured coating is used, a contrasting optical characteristic is formed between the region in which the sub-wavelength surface micro-structure and the multi-layer structured coating lie and the region in which the optical reflection facet and the multi-layer structured coating lie, so that the optical anti-counterfeiting component or the optical anti-counterfeiting product that includes the optical anti-counterfeiting component can be identified easily and has high anti-counterfeiting capability.

The present invention discloses an optical anti-counterfeiting component and an optical anti-counterfeiting product. The optical anti-counterfeiting component comprises: a substrate; a sub-wavelength surface micro-structure and an optical reflection facet formed on an upper surface of the substrate; and a multi-layer structured coating formed on the sub-wavelength surface micro-structure and the optical reflection facet. In the case where the same multi-layer structured coating is used, a contrasting optical characteristic is formed between the region in which the sub-wavelength surface micro-structure and the multi-layer structured coating lie and the region in which the optical reflection facet and the multi-layer structured coating lie, so that the optical anti-counterfeiting component or the optical anti-counterfeiting product that includes the optical anti-counterfeiting component can be identified easily and has high anti-counterfeiting capability.

The invention relates to a security element for application to a surface of a valuable document or at least partial embedding into a substrate of the valuable document, for example a banknote or a passport, wherein the security element consists of a plastics film. According to the invention, at least one printing ink which is transparent in the infrared wavelength range of electromagnetic radiation (referred to hereinafter as IR-transparent printing ink) and has a first reflectance value and at least one printing ink which is absorbent in the infrared wavelength range of electromagnetic radiation (referred to hereinafter as IR-absorbing printing ink) and has a second reflectance value are applied to the plastics film of the security element, the separation between the first and second reflectance values being at least 40%.

In various embodiments, a circuit arrangement is provided, including a first antenna tuned to a first frequency range, a second antenna tuned to a second frequency range being different from the first frequency range, a controller coupled to the first antenna and the second antenna, wherein the controller is configured to receive its operational power via at least one of the first antenna and the second antenna, and a deactivating structure configured to deactivate the communication of the controller via the second antenna upon reception of electromagnetic waves with the first frequency range via the first antenna.

In various embodiments, a circuit arrangement is provided, including a first antenna tuned to a first frequency range, a second antenna tuned to a second frequency range being different from the first frequency range, a controller coupled to the first antenna and the second antenna, wherein the controller is configured to receive its operational power via at least one of the first antenna and the second antenna, and a deactivating structure configured to deactivate the communication of the controller via the second antenna upon reception of electromagnetic waves with the first frequency range via the first antenna.

A security paper is provided that includes at least one layer of fibrous substrate and a security deposit thereon. The at least one layer has a main body of a substantially uniform thickness and at least one aperture and/or zone of reduced thickness. The reduced thickness is non-zero and at least 15% less than the thickness of the main body. The security deposit includes at least one element that partially covers the fibrous substrate exposed in the at least one aperture and/or zone of reduced thickness. Therefore, when the at least one layer is split through its thickness into first and second portions, a hole is provided in the first portion and the at least one element is provided on the fibrous substrate of the second portion. A method of manufacturing the security paper and security documents including the security paper are also provided.

A security paper is provided that includes at least one layer of fibrous substrate and a security deposit thereon. The at least one layer has a main body of a substantially uniform thickness and at least one aperture and/or zone of reduced thickness. The reduced thickness is non-zero and at least 15% less than the thickness of the main body. The security deposit includes at least one element that partially covers the fibrous substrate exposed in the at least one aperture and/or zone of reduced thickness. Therefore, when the at least one layer is split through its thickness into first and second portions, a hole is provided in the first portion and the at least one element is provided on the fibrous substrate of the second portion. A method of manufacturing the security paper and security documents including the security paper are also provided.

Systems and methods wherein one or more processing operations on an identification document occur after a radiation curable material is applied to a surface of the identification document but before the radiation curable material is fully cured. The one or more processing operations can occur before any curing of the radiation curable material takes place. Alternatively, the one or more processing operations can occur after the radiation curable material has been partially cured, and before the radiation curable material is fully or completely cured.

Systems and methods wherein one or more processing operations on an identification document occur after a radiation curable material is applied to a surface of the identification document but before the radiation curable material is fully cured. The one or more processing operations can occur before any curing of the radiation curable material takes place. Alternatively, the one or more processing operations can occur after the radiation curable material has been partially cured, and before the radiation curable material is fully or completely cured.

The present invention provides an improved security document having a “see-through” security feature that protects a window of the security document in which personalization information may be displayed, such as an image of the authorized document holder. The “see-through” security feature is provided by front and back side images, such as text (e.g. micro-text or encoded indicia), graphics or other image type, that may be laser marked onto the document substrate from a front side thereof through the window to a back side of the window. At least a part of the front image and at least a part of the back image are in front-to-back registration in window, the registration of the images being subject to verification by suitable inspection of the window. The front and back images may be partial images of a composite image when joined together at a juncture with the front-to- back registration of the partial images located at the juncture so that the images together have an appearance of the composite image in the window. Ahernatively, at least a part of the first and second images may be identical with the front-to-back registration of the images located at least one of the identical parts so that the first and second images have an appearance in the window of a single image at those identical parts of the front-to-back registration.