Abstract: An additive manufacturing system includes a high power laser to form a laser beam directed against a light valve. An active light valve cooling system is arranged to remove heat from the light valve and a heat exchanger is connected to the active light valve cooling system. A heat exchange fluid is circulated through the active light valve cooling system and the heat exchanger.

Abstract: A method for laminating glass sheets is disclosed. A sandwich structure sheet moving in a heating furnace on rollers is heated by two-sided hot air blasting which is carried out by several successive blowing aperture sections, and, to reduce or prevent the formation of air bubbles in finished laminated glass, the heating of the rear end of the sandwich structure sheet is prevented by cutting off the hot air blasting of at least one blowing aperture section when the rear edge of the sandwich structure sheet approaches the blowing aperture section. An apparatus for laminating glass sheets is also disclosed, comprising a heating furnace, a pair of press rolls and means for establishing location data on the sandwich structure sheet. The heating furnace is provided with a roller track, a blower, a heating resistor, an air distribution conduit, and several successive blowing boxes with closing means.

Abstract: A machine for disassembling a lens mold assembly including a first mold part, a second mold part, and a molded-lens sandwiched therebetween. The machine includes a centering unit to center the lens mold assembly. The machine includes a disassembling module having a mold engagement mechanism to engage the first and second mold parts to clamp and move the lens mold assembly. The disassembling module includes a molded-lens holder mechanism having at least two clamping members to clamp the molded-lens of the lens mold assembly. The machine includes an alignment guidance module to detect relative positions between the molded lens of the lens mold assembly and the molded-lens holder mechanism to align the molded lens for clamping by the molded-lens holder mechanism. The mold engagement mechanism is configured to hold the first and second mold parts individually and to separate the first and second mold parts from the molded lens.

Abstract: An illumination module includes a light emitting unit, an optical lens with positive refractive power, and a concave mirror. At least one of an object-side surface and an image-side surface of the optical lens is an asymmetrical surface, and the light emitting unit is provided at an object side of the optical lens. The concave mirror is provided at an image side of the optical lens, and the concave mirror acts as an optical path folding element. Light emitted by the light emitting unit passes through the optical lens and is reflected by the concave mirror to be a parallel light ray.

Abstract: A method for manufacturing a material layer includes a first step S101 of arranging first particles P1 in a pattern on a base material 11 and a second step S102 of arranging second particles in regions in which the first particles P1 are not arranged on the base material 11. The second step S102 includes a step of rubbing bearing materials S2 that carry the second particles P2 against the base material 11 on which the first particles P1 are arranged.

Abstract: A method of repairing a surface defect with a patch is provided. A fibrous substrate is impregnated with a formulation that includes a polyester resin, a crosslinking agent, a solvent, and a particulate filler. The fibrous substrate is contacted with the surface defect. The formulation is exposed to actinic radiation to induce cure of the formulation to form the patch to repair the surface defect. A kit is also provided that includes a bottle containing the formulation. A sheet of fibrous support material is also provided that is adapted to receive the formulation therethrough. Instructions for repairing a surface defect by the aforementioned method are also provided as part of the kit. 3D printing of an article to fit in the surface defect is also disclosed.

Abstract: Systems and methods for additively manufacturing or repairing a component from a base material. The system may include an inoculation source to direct inoculation materials and a laser metal deposition (LMD) system to direct laser energy during laser processing of additive materials deposited in a melt pool on the base material. The LMD system includes a laser energy source configured to direct laser energy towards the base material and inoculation materials to form the melt pool thereon and to process the deposited additive materials and inoculation materials to form layers on the base material upon solidification.

Abstract: A system for producing a multicore optical fiber includes a source of electromagnetic radiation in a spectral range that is suitable for inducing photopolymerization of a transparent polymer. An arrangement of one or more optical components is configured to concurrently focus the radiation that is emitted by the source on a plurality of elongated regions of the transparent polymer so as to photopolymerize the transparent polymer solely in the elongated regions to increase the index of refraction of the elongated regions such that in the optical fiber that is formed of the transparent polymer after the elongated regions are photopolymerized, each of the elongated regions functions as a core of the optical fiber and regions of the transparent polymer that surround the elongated regions function as a cladding of each of the cores.

Abstract: The present disclosure discloses a low-viscosity thermosetting starch adhesive for particleboards, and a preparation method therefore, belonging to the technical field of adhesive preparation. The adhesive of the present invention selects N-hydroxyethyl acrylamide or acetoxyethyl methacrylate as the crosslinking monomer, which has a low degree of crosslinking in the process of adhesive preparation to avoid the problem of increasing viscosity, but can cross-link quickly during the hot pressing process, forming a network structure, and improving the water resistance of the adhesive; and furthermore, itaconic acid is added to promote the self-crosslinking reaction of the crosslinking monomer in the hot-pressing process, thus further improving the water resistance.

Abstract: Disclosed are light-curing printer display devices, 3-dimensional (3D) printers, control methods and devices, and electronic devices. In some embodiments, the light-curing printer display device include a screen, a light source assembly, a shielding plate, and a controller. In other embodiments, the light source assembly is arranged on a back side of the screen and the light source assembly includes multiple Light Emitting Diode (LED) light sources independent of each other. The shielding plate is arranged between the screen and the light source assembly and is provided with multiple light holes with the same number as that of the multiple LED light sources. The multiple light holes correspond to the multiple LED light sources one by one. The controller is electrically connected with the multiple LED light sources and is configured to control at least one LED light source to emit light.

Abstract: Aspects described herein relate to additive manufacturing systems and related methods. In some embodiments, an additive manufacturing system includes a laser array position detector to determine a position and/or orientation of laser energy pixels in a laser array. The laser array position detector may include an aperture and an optical sensor positioned within the aperture to detect laser energy from a laser energy pixel when the laser array is scanned across the aperture.

Abstract: A method of fabricating a lens includes dispensing a first liquid optically-transmissive material into a first mold cavity and then curing the first liquid optically-transmissive material to form a first region the lens having a first refractive index and an optical interface surface. A second liquid optically-transmissive material then dispensed into a second mold cavity over the optical interface surface while the first region of the lens is disposed within the second mold cavity. The second liquid optically-transmissive material in the second mold cavity is cured to form a second region of the lens having a second refractive index. An optical interface between the first region and the second region conforms to the optical interface surface.

Abstract: A device and method for printing 3D articles including electronic and functional elements including 3D printer and a plasma jet printer based on a dielectric barrier atmospheric pressure plasma jet system in which both printing and in-situ treatment and post-deposition treatment can be carried out to tailor the materials characteristics. Plasma jet printer comprising of electrodes in the nozzle/print head for applying electric field and generating atmospheric plasma that could be used for non-gravity based highly directional printing in any direction. Integration of dielectric barrier plasma printer and plasma treatment jets with the 3D printer increases the capability of embedding high performance electronics in a 3D printed structure aiding in additive manufacturing of functional devices. Ability to use a range of materials for print head assembly including micro machined silicon increases the resolution of the plasma jet printer to sub-micron level.

Abstract: A method for providing data for selectively irradiating a powder layer in additive production, the method includes: providing a predefined component geometry for a component; dividing the component geometry into at least one first component layer and an overlying second component layer for additive production, wherein a contour of the second component layer is incongruent with a contour of the first component layer; and continuously defining at least one production parameter for additively producing the second component layer in region of a molten bath of a contour of the first component layer. A corresponding component is produced and a computer program product implements the method.

Abstract: A laser assembly for use with an additive manufacturing system, which includes a base block configured to be moved along a scan direction axis in the additive manufacturing system, a plurality of laser emitters preferably arranged in an array of at least two rows of two or more laser emitters. At least a portion of a heat sink assembly is configured to draw heat away from the base block and/or the laser emitters. The assembly includes a controller assembly a controller assembly configured to control a movement of the base block along the first axis and to independently control at least timing and duration of energy emitted from each laser emitter of the plurality of laser emitters as the base block moves along the first axis.

Abstract: A gas supply device for a manufacturing device includes an inert gas supply source that supplies inert gas, a supply line connected to the inert gas supply source, a nitrogen removal portion that is provided on the supply line and that removes at least a portion of nitrogen in the inert gas, and an oxygen removal portion that is provided on the supply line and that removes at least a portion of oxygen in the inert gas.

Abstract: A three-dimensional printing system includes a resin vessel containing resin, an imaging bar, a movement mechanism coupled to the imaging bar, and a controller. The imaging bar includes an arrangement of light emitting devices that selectively emit radiation from an exit surface of the imaging bar to define a build plane in the resin. The exit surface of the imaging bar is preferably less than 10 millimeters from the build plane. The controller is configured to scan the imaging bar along a scan axis and, concurrent with scanning, operate the imaging bar to selectively image a layer of resin at the build plane.

Abstract: A system for curing a thermoset composite may include a tooling die configured to receive and support an uncured thermoset composite part and to heat the uncured thermoset composite part; a pressure media bag configured to be placed over the uncured thermoset composite part disposed on the tooling die and including a pressure media; and a mechanical press configured to apply a consolidation pressure to the uncured thermoset composite part disposed on the tooling die, the pressure media bag may be configured to distribute the consolidation pressure applied by the mechanical press to the uncured thermoset composite part disposed on the tooling die.

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a removable vessel to reduce the time required for start-up procedures after the printer is serviced. The removable vessel is filled with solid metal that is heated to its melting temperature before the bulk wire is inserted into the vessel to commence printing operations. The melting of the solid metal in the removable vessel requires less time that the melting of an length of bulk wire adequate to produce a volume of melted metal suitable for printer operation. The solid metal in the removable vessel can be metal pellets, metal powder, or a solid metal insert.

Abstract: A method of laser processing including generating a laser beam having, at different longitudinal positions in a propagation direction, first and second transverse beam profiles of energy density. The first transverse beam profile is different to the second transverse beam profile and is non-Gaussian. The method includes carrying out a scan of the laser beam across a working surface, wherein, during the scan, the laser beam and/or working surface is adjusted such that, for a first part of the scan, the first transverse beam profile is located at the working surface and, for a second part of the scan, the second transverse beam profile is located at the working surface.