The present disclosure provides a method and control apparatus for burning an address code of LED lamp beads, and relates to the technical field of LEDs. The method for burning the address code of the LED lamp beads described by the present disclosure is applied to a burner and includes: generating, by the burner, an optical signal; and sending the optical signal to the LED lamp beads such that the LED lamp beads sense the optical signal, convert the optical signal into an address code and store the address code. The present disclosure makes use of a light sensing effect of the LED lamp beads, sends the optical signal to the LED lamp beads through the burner such that the LED lamp beads generate an address code according to the optical signal, and burn the address code into the LED lamp beads.

A laser engraver with a barcode reading module is disclosed which is for engraving 2D barcode on an electronic component positioned in an engraving area. The laser engraver includes a motion assembly, a laser beam generator, a control module and a barcode reading module. The motion assembly is operative to move in first and second horizontal directions. The control module is configured to control the laser beam generator to produce a laser beam which engraves 2D barcode on the electronic component, and to control the barcode reading module to read 2D barcode. In the event of a count of unsuccessful attempts of the barcode reading module to read 2D barcode reaching a built-in failure count, the control module produces a warning signal, thereby ensuring successful reading of 2D barcode by client, avoiding the problems arising from failure in such reading, including downtime of a production line and the resulting fines.

The present invention relates to an access control system, an access object and a method for access control. The access control system comprises an access request receiving device being configured and operable for receiving an access object; the access request receiving device comprising an emitter configured and operable for irradiating the access object with a radiation having a wavelength in the range of about 10″12 and 10″9 m and a detector configured and operable for detecting a response signal from the irradiated access object; a control circuit being configured and operable to receive the response signal from the access request receiving device and process the response signal to identify spectral features indicative of an XRF signature of the access object; wherein the control circuit is adapted to generate an unlocking signal for switching a module device between a locked state and an unlocked state upon identification of the XRF signature.

A card-marking system is provided for personalizing plastic cards such as chip cards or identity cards by laser marking. A corresponding method for automated detection of an optimized setting includes a vision sub-system setting process for setting a vision sub-system of the card marking system and a subsequent marking sub-system setting process for setting a marking sub-system of the card-marking system. The card-marking system is designed to carry out the above method fully or semi-automatedly and to this end can include a corresponding computer program controlling the method.

An image forming apparatus includes a first image forming unit configured to form an image with a decolorable material, a second image forming unit configured to form an image with a non-decolorable material, an RFID processor configured to write data in an RFID tag, a memory unit for storing a table indicating one or more attributes associated with the decolorable material and one or more attributes associated with the non-decolorable material, and a controller configured to control the first image forming unit to carry out image forming on a medium including the RFID tag for information of which attribute is associated with the decolorable material in the table, and control the second image forming unit to carry out image forming on the medium for information of which attribute is associated with the non-decolorable material in the table.

A system and method for manufacturing a strip or label used to place a substantially invisible identifying mark is disclosed. A strip is treated by removing at least one area of a liner element, a film layer and an adhesive layer. Each one of the removed areas is substantially congruent with the other removed areas. A laser or other ablating device is used to remove the areas through vaporization. The strip element is peeled away from the liner element, exposing the adhesive layer. The adhesive layer is thereafter pressed against a substantially flat metal surface. The laminate top coat and the film layer are removed from the object, leaving the adhesive layer in place. The adhesive material is impregnated with a UV sensitive material, but is otherwise invisible.

A barcoded end facet printed photonic chip includes: an optically transparent direct laser writing substrate including a transverse waveguide writing surface to receive a direct write laser light for off-axis direct write laser printing and a facet surface to receive the direct write laser light for on-axis direct write laser printing of a barcode-guided direct laser written optical coupling on the facet surface; a waveguide disposed in the optically transparent direct laser writing substrate and in optical communication with the facet surface; and an optically visible bulk impregnated barcode disposed in the optically transparent direct laser writing substrate arranged proximate to the waveguide and in optical communication with the facet surface.

A surface is laser-etched to convey a 2D machine-readable code pattern. Various strategies are detailed to minimize the etching time. Some strategies include modifying the code pattern to reduce a path length traveled by the laser. Some strategies include modifying the code pattern to make it sub-optimal, i.e., making the code pattern a less-faithful approximation of an ideal code pattern. In some embodiments the etched surface is the surface of a plastic container, and the code pattern conveys information indicating the type of plastic of which the container is manufactured. A variety of other features and arrangements are also detailed.

A system and method for identifying test bars formed during a selective laser sintering build. A part cake is formed during a selective laser sintering build. The part cake comprises parts formed from a powder by selective laser sintering and unsintered powder around the formed parts. The parts include test bars for performing material testing. Each test bar includes a plurality of indentations in a first grip section and a second grip section. The plurality of indentations are arranged in a information providing pattern that is adapted to be readable after the test part is removed from the part cake.

A device for personalizing security or identification objects including a laser processing station having a laser unit that personalizes an object located in a laser processing area. The laser processing station comprises a turntable with a first receiving area for receiving a first object and a second receiving area for receiving a second object. The turntable is mounted rotatably relative to the laser unit so that it can be rotated from a first rotational position into a second rotational position. In the first rotational position, the first object and in the second rotational position the second object are at least partially located in the laser processing area.