A glass container including a body having a delamination factor less than or equal to 10 and at least one marking is described. The body has an inner surface, an outer surface, and a wall thickness extending between the outer surface and the inner surface. The marking is located within the wall thickness. In particular, the marking is a portion of the body having a refractive index that differs from a refractive index of an unmarked portion of the body. Methods of forming the marking within the body are also described.

Disclosed is a method for associating a marking with an object, including the following steps: identifying the position of at least two different elements of the marking in relation to the marking and/or the object; andmeasuring a relative distance between at least two identified elements; thenrecording in a database the position of at least two identified elements, and the relative distance between the identified elements so that the position of two identified elements is correlated with the measurement relating to their distance.

Printing process in which a substrate to be printed is disposed opposite an ink carrier having an ink layer, wherein the ink layer is regionally heated in such a way that bulges are formed in the ink layer, wherein the bulges contact the substrate and wherein ink splitting is brought about by relative movement between substrate and ink carrier.

The invention relates to a machine for labeling blank-labeled cryogenically-frozen vials or ampoules, which contain heat-labile biological materials, and to which a laser-light sensitive material had been applied prior to freezing. Accordingly, the machine has been designed to maintain the integrity of the biological materials throughout all phases of the labeling process. The machine generally comprises a master control system; a programmable user interface; a frame; cryogenic freezer assemblies, for keeping the vials at the required low temperatures; an infeed assembly, configured to receive and position blank-labeled cryogenic vials; a cryostatic labeling/quality control tunnel, wherein the vials are maintained at the required temperature, labeled by laser ablation, and checked for quality; and, an outfeed assembly. The machine further comprises a means for transporting the vials from the infeed assembly to the tunnel, and from the tunnel to the outfeed assembly. Vials labeled according to the instant disclosure are ultimately manually or automatically loaded into cryogenic shipping containers.

An ignition plug such as a spark plug or a glow plug configured to ignite an air-fuel mixture in an internal combustion engine includes a mark that is formed of an oxide film generated on the surface of a metal member or is formed of the metal member and the oxide film. The mark is formed by promoting formation of the oxide film on the surface of the metal member or removing the oxide film through radiation of a laser beam onto the surface of the metal member.

An ignition plug such as a spark plug or a glow plug configured to ignite an air-fuel mixture in an internal combustion engine includes a mark that is formed of an oxide film generated on the surface of a metal member or is formed of the metal member and the oxide film. The mark is formed by promoting formation of the oxide film on the surface of the metal member or removing the oxide film through radiation of a laser beam onto the surface of the metal member.

A volume-colored monolithic glass ceramic cooking plate is provided. The plate includes a first zone in which the coloration of the glass ceramic differs from that of a second, adjacent zone, so that an absorption coefficient of the first zone is lower than the absorption coefficient of the second, adjacent zone and so that integral light transmission in the visible spectral range is greater in the first zone than the integral light transmission of the second, adjacent zone. The light scattering in the glass ceramic of the first zone differs from light scattering in the glass ceramic of the second zone by not more than 20 percentage points, preferably by not more than 5 percentage points.

Disclosed subject matter relates to image processing that includes a method for marking content on a surface of an object using laser. A transformation identification computing device receives an input image of the object and extracts data corresponding to region of interest in the input image. The extracted data is compared with extracted template data corresponding to regions of interest present in template images of one of one or more template objects. A transformation in position of the object with respect to the position of the one of the one or more template objects is determined, based on the comparison. Finally, an inverse of the transformation is applied to content data that is to be marked at a desired location within the region of interest of the object. The present disclosure analyses the images at a sub-pixel level based on machine learning approach to determine transformation.

A glass plate with an identification mark and a process for forming an identification mark on a glass plate are configured such that the identification mark includes a plurality of first openings, each of the first openings further includes a plurality of second openings, each of which has a smaller area than each of the first openings, and each of the second openings is formed in a substantially circular shape having a radius of at least 0.05 mm and at most 0.3 mm.

Dental appliances, materials, and methods of forming such appliances and materials for improved laser marking are provided herein including the use of a particulate material for enhancing laser marking.