The invention relates to the field of optical anti-counterfeiting, and discloses an optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element comprises: a substrate which is at least partially pervious to light, comprising a first surface and a second surface opposite each other; an anti-counterfeiting image formed on the first surface of the substrate, wherein the anti-counterfeiting image comprises a plurality of imaging pixel groups, and the imaging pixel groups are arranged aperiodically and/or without an axis of symmetry; and a sampling-synthesis layer with optical characteristics formed on the second surface of the substrate, wherein target visual images corresponding to the imaging pixel groups can be presented through a light-pervious part of the substrate and the sampling-synthesis layer. In this way, at least the technical problems of poor anti-counterfeiting performance and easy cracking caused by the adoption of a periodic micro-graphic array in the prior art can be solved.

A diffractive security device is disclosed including at least a first diffractive structure defined in a carrier layer. The first diffractive structure is an on-axis diffractive zone plate structure of a continuously curved surface configured such that when the device is illuminated by on-axis light a first diffraction pattern generated by the first diffractive structure can be viewed from at least a first side of the device at substantially all viewing angles, the first diffraction pattern exhibiting a reference point or reference line relative to which other features of the first diffraction pattern appear to move when the viewing angle is changed.

A diffractive security device is disclosed including at least a first diffractive structure defined in a carrier layer. The first diffractive structure is an on-axis diffractive zone plate structure of a continuously curved surface configured such that when the device is illuminated by on-axis light a first diffraction pattern generated by the first diffractive structure can be viewed from at least a first side of the device at substantially all viewing angles, the first diffraction pattern exhibiting a reference point or reference line relative to which other features of the first diffraction pattern appear to move when the viewing angle is changed.

A tamperproof diamond package comprises a package body; at least one chip embedded in the package body and at least one antenna configured to enable communication with the chip; anti-counterfeiting visual impressions on the package body; a diamond pouch formed at a predetermined section within the package body; and one or more diamonds located inside the diamond pouch and an outer covering encasing the package body and configured to reveal any tampering with the one or more diamonds located in the diamond pouch. The diamond package can be credit card shaped and also contains serial number and website information and be provided in nominal dollar values. An associated diamond exchange system utilizes the diamond packages and provides a registration server which stores unique identifying information that enable interrogating the individual diamond packages and checking their authenticity with the registration server.

Provided are an authenticity verification tag and a wrapping paper including the same. The authenticity verification tag includes a layer; a first region, which forms a border on the layer and includes identification information regarding a product to be verified for authenticity; a second region surrounded by the first region; and a plurality of spots, which are arranged in the second region and are usable for authenticity verification.

Provided are an authenticity verification tag and a wrapping paper including the same. The authenticity verification tag includes a layer; a first region, which forms a border on the layer and includes identification information regarding a product to be verified for authenticity; a second region surrounded by the first region; and a plurality of spots, which are arranged in the second region and are usable for authenticity verification.

The present invention disclosed a shaped object comprising nano cellulose alone or a composition of nano cellulose for inclusion in a paper product and process for preparation thereof. The present invention further disclosed a paper product having the shaped objects incorporated therein. The shaped objects are used as a security feature for identifying and authenticating security documents.

In general, the subject matter described in this specification relates to security credentials for documents, such as identification documents. One example is an identification document that includes a photographic image of an individual associated with the document, and a spiral pattern applied to a region of the identification document. The spiral pattern includes an elliptical spiral segmented into a plurality of arc segments, where wherein the arc segments of the spiral pattern encode identification data associated with the individual. Other implementations include corresponding processes, systems, apparatus, and computer programs related to generating and verifying identification documents with spiral patterns.

Smart processing devices and systems for controlling functionality of smart processing devices are provided. In some examples, a smart processing device may include a central segment and a plurality of removable segments. The removable segments may be connected to the central segment in a plurality of different configurations. In some examples, each configuration may enable or disable functionality associated with the smart processing device. Further, a system may receive data associated with a current physical configuration of a smart processing device. The current physical configuration data may be compared to pre-stored configuration data in order to identify one or more functions to be enabled or disabled for the smart processing device. The system, computing platform, or the like, may generate an instruction, command or signal enabling or disabling functionality and may transmit the signal to the smart processing device for execution and control of functions provided by the smart processing device.

Smart processing devices and systems for controlling functionality of smart processing devices are provided. In some examples, a smart processing device may include a central segment and a plurality of removable segments. The removable segments may be connected to the central segment in a plurality of different configurations. In some examples, each configuration may enable or disable functionality associated with the smart processing device. Further, a system may receive data associated with a current physical configuration of a smart processing device. The current physical configuration data may be compared to pre-stored configuration data in order to identify one or more functions to be enabled or disabled for the smart processing device. The system, computing platform, or the like, may generate an instruction, command or signal enabling or disabling functionality and may transmit the signal to the smart processing device for execution and control of functions provided by the smart processing device.