An implant device identifiable after implantation comprises a main portion of the implant device and a coded portion of the implant device. The coded portion comprises a radiopaque element and indicia on the radiopaque element or indicia as a plurality of radiopaque elements disposed within the coded portion. The indicia are discernible by x-ray, fluoroscopy, computed tomography, electromagnetic radiation, ultrasound, or magnetic resonance imaging.

A mark reader apparatus has a lens and an autofocus system that manipulates the lens in accordance with control signals. An image acquisition system measures a distance from the lens to a dot peened mark. A processor is programmed to: calculate a focus position for the autofocus system that focuses the lens on the dot peened mark; apply an offset to the calculated focus position to produce an offset focus position; control the autofocus system by positioning the autofocus system to the offset focus position; and via the image acquisition system, acquire an image of the mark with the autofocus system set to the offset focus position.

Electrode monitoring systems and methods are disclosed. In certain configurations, a monitoring system includes a programmable logic controller (PLC) configured to receive specification information of at least one electrode from a first sensor, receive coordinates of a position of the at least one electrode from a second sensor, and generate identification information for the at least one electrode on the basis of the specification information and the coordinates of the position, an inspection device configured to inspect the at least one electrode to generate inspection information, and a controller configured to manage the identification information and the inspection information of the at least one electrode by matching the identification information and the inspection information.

A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

A method of inserting a data structure into a component using a 3D printer is provided. The method includes providing the data structure having at least one structural parameter associated with the component, converting the data structure into indicia representative of the data structure, and manufacturing the component containing the indicia.

A method for producing a spectacle lens from a lens material and includes: a marking step of marking an identification mark for identifying the spectacle lens, and a processing information mark which is used to process a lens blank and includes a tray identification 2D code, a tray identification code, a shape line and a position mark by forming a hole or a groove in a convex surface of the lens material by laser; and a concave surface machining processing step of reading the processing information mark, and machining a concave surface of the lens blank based on the read processing information mark.

An implant device identifiable after implantation comprises a main portion of the implant device and a coded portion of the implant device. The coded portion comprises a radiopaque element and indicia on the radiopaque element or indicia as a plurality of radiopaque elements disposed within the coded portion. The indicia are discernible by x-ray, fluoroscopy, computed tomography, electromagnetic radiation, ultrasound, or magnetic resonance imaging.

A method of manufacturing a metal product comprise forming a base region on a surface of a metal member by repeatedly scanning along a predetermined first direction while irradiating the surface of the metal member with a base laser beam over a first set of rows. The method further comprises forming a marking by repeatedly scanning along a predetermined second direction while irradiating the surface of the metal member with a marking laser beam over a second set of rows. The second direction is different from the first direction. An identification code having a predetermined pattern comprises a combination of the base region and the marking.

A system for marking a plastic article with a computer readable matrix barcode associated with input material used to form the plastic article is provided. The system includes a barcode applicator positioned downstream of an article forming operation. The barcode applicator is configured to provide a computer-readable matrix barcode on a surface of the plastic article. The system further includes a controller communicatively coupled to the barcode applicator. The controller has one or more processors configured to collectively: receive tracing information for one or more ingredients of the input material used to form the plastic article; generate the computer-readable matrix barcode scannable to display the received tracing information for each ingredient; and transmit, to the barcode applicator, one or more commands instructing the barcode applicator to provide the generated computer-readable matrix barcode on the surface of the plastic article.