Environmental monitors for monitoring a predetermined environmental exposure, for example, an historical heat exposure such as a cumulative ambient heat exposure and/or a peak ambient heat exposure may include an environmental indicator material and a security material. The environmental monitor may be configured to attach to a host product for monitoring the predetermined environmental exposure of the host product, and additionally serve as an anti-counterfeiting indicator.

The present invention relates to the field of security inks suitable for printing security features on substrates, in particular on security documents or articles as well as security features made from said security inks, and security documents comprising a security feature made from said security inks. In particular, the invention provides UV-Vis radiation radically curable security inks comprising an ink vehicle and pigments comprising a flake-shaped non-metallic or metallic substrate comprising one or more at least partial coating layers, an at least partial surface treatment layer made of one or more surface modifiers selected from fluoro compounds.

A system and method for automatic identification of photocopied documents is disclosed wherein the method is performed by capturing an image of a marked printed document; decoding a digital watermark embedded in the image, obtaining a mark identifier; recovering, by searching a database, at least one calibration parameter associated with the mark identifier; applying a discrete Fourier transform to the image, obtaining a frequency matrix; obtaining at least one maximum frequency value in the frequency matrix; comparing the at least one maximum frequency value with at least one calibration parameter; determining, on the basis of the comparison, if the marked printed document is an original document or a photocopied document.

A system and method for automatic identification of photocopied documents is disclosed wherein the method is performed by capturing an image of a marked printed document; decoding a digital watermark embedded in the image, obtaining a mark identifier; recovering, by searching a database, at least one calibration parameter associated with the mark identifier; applying a discrete Fourier transform to the image, obtaining a frequency matrix; obtaining at least one maximum frequency value in the frequency matrix; comparing the at least one maximum frequency value with at least one calibration parameter; determining, on the basis of the comparison, if the marked printed document is an original document or a photocopied document.

The present disclosure relates to a micro-optic device for producing a magnified image, including: a first unitary structure on one side of a substrate, the first unitary structure including a first group of focusing elements and a first group of imagery elements, wherein one of the first group of focusing elements and the first group of imagery elements is recessed with respect to the other, wherein the device further includes at least a first coating of ink overprinted on the first unitary structure, to at least partially fill the recessed group of elements, and wherein a property of the ink provides a visual contrast in the magnified image.

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 relates to the use of nanosystems as non deactivable security markers comprising metal atomic quantum clusters (AQCs) of at least two different size distributions encapsulated in a cavity with an inner diameter less than or equal to approximately 10 nm. These nanosystems are luminescence, particularly fluorescence after external excitation. The invention also relates to security documents, articles or elements incorporating these markers as well as to a method and a system for detecting the same.

A system, device and/or method for multiplex assays. In a particular, but non-limiting, example there is provided a multiplex array, such as a suspension array. Luminescence decay lifetimes are utilized for probes in a suspension array, and coding/decoding the codes from time-resolved spectra. Lifetime populations can be generated at distinct color bands. A novel temporal technique or dimension is applied over conventional spectral and intensity combinations, thereby expanding the multiplexing capacity of a suspension array. In one example form, the multiplexing capacity of a suspension array can be expanded to the order of about 5.sup.8. This provides a reliable, high-throughput and relatively inexpensive solution for multiplex assays in various areas of application such as life sciences, data storage and security.

A system, device and/or method for multiplex assays. In a particular, but non-limiting, example there is provided a multiplex array, such as a suspension array. Luminescence decay lifetimes are utilized for probes in a suspension array, and coding/decoding the codes from time-resolved spectra. Lifetime populations can be generated at distinct color bands. A novel temporal technique or dimension is applied over conventional spectral and intensity combinations, thereby expanding the multiplexing capacity of a suspension array. In one example form, the multiplexing capacity of a suspension array can be expanded to the order of about 5.sup.8. This provides a reliable, high-throughput and relatively inexpensive solution for multiplex assays in various areas of application such as life sciences, data storage and security.

The invention relates to a transfer film (1), in particular hot-stamping film, the use of a transfer film (1), a film, a security document (2), and a method for producing a transfer film (1). Here, it is provided that the transfer film (1) comprises a transfer layer (20) detachably arranged on a carrier layer (10). The transfer layer (20) further has at least one first color layer (30) and the at least one first color layer (30) comprises at least one binder and at least first pigments, the color appearance of which changes depending on the observation angle.