An optical unit includes: a first optical device retaining body including a first retainer, and a first fitting margin; a second optical device retaining body including a second retainer, and a second fitting margin; and a weld portion melted and solidified across the first fitting margin and the second fitting margin, the weld portion being provided in an edge surface located outside a region in an optical axis direction of the optical unit, the region being sandwiched by: a first retaining surface passing through the first retainer and perpendicular to the optical axis of the optical unit; and a second retaining surface passing through the second retainer and perpendicular to the optical axis, wherein ends of the first fitting margin and the second fitting margin in the optical axis direction in the overlapping portion are substantially aligned at the edge surface.

An annealed workpiece manufacturing method of irradiating a workpiece with laser light and annealing the workpiece includes a support step of supporting the workpiece, and an irradiation step of irradiating the supported workpiece with the laser light. In the support step, at least in a laser light irradiation area for the workpiece, the workpiece is supported by a cam member whose upper end height position is adjusted according to a rotation position.

Systems and methods for producing a textured pattern on a surface of a part using a laser. The part or laser may be rotated while forming the textured pattern to create a continuous textured pattern on a surface of a part. The continuous textured pattern may be substantially uniform over the entire pattern. A laser texturing system may also include an optical scanner. A first region of the surface of the part may be scanned using a first laser beam. One or more laser texturing parameters or a simulated geometric model may be created based on the scan of the first region. The textured pattern may be formed on the first region using a second laser beam. The textured pattern may be formed in accordance with the one or more laser texturing parameters or simulated geometric model.

The present inventing relates to a method for marking at least one inner face of a container with at least one given pattern, in which method the inside of said inner face is at least partially coated with a pigmented sol-gel layer that reacts to laser radiation, by spraying or by means of a stamp applied to a precise zone of the layer provided for containing the pattern, and the pattern is developped by interaction between the sol-gel and UV laser radiation specifically programmed according to the pattern to be revealed, the UV laser radiation being emitted by a device comprising an optical system having a long optical length that allows a field depth of more than 1 mm to be obtained. The present invention also relates to a device suitable for implementing this method and to a container obtained by this method.

An annealed workpiece manufacturing method of irradiating a workpiece with laser light and annealing the workpiece includes a support step of supporting the workpiece, and an irradiation step of irradiating the supported workpiece with the laser light. In the support step, at least in a laser light irradiation area for the workpiece, the workpiece is supported by a cam member whose upper end height position is adjusted according to a rotation position.

Provided herein is an apparatus that includes a first and second laser source. The first and second laser sources are each operable to cut a substrate and are each independently movable with respect to one another. Further, the first and second laser sources are included within a multitude of laser sources that are arranged in a circular array.

A vacuum insulation panel manufacturing method that makes it possible to manufacture low-cost, high-performance vacuum insulation panels, and a vacuum insulation panel are provided. This method of manufacturing a vacuum insulation panel (1) involves: a stacking step in which a first metal plate (20) is overlaid on one side of a thermally insulating core material (10), and in which a backing member (50) having an opening (51) and a second metal plate (30) having an exhaust port (32) are placed, with the opening (51) and the exhaust port (32) overlapping, overlaid on each other on the other surface of the core member (10) in the order of backing member (50) and second metal plate (30) from the core member (10) side; a first welding step for welding outwards of where the core member (10) is disposed in the first metal plate (20) and the second metal plate (30); a vacuum creating step for evacuating air from the exhaust pert (32) to create a vacuum in an inner area which is held between the first metal plate (20) and the second metal plate (30) and in which the core member (10) is arranged; and a laser welding step in which, in a state in which the inner area is made into a vacuum by the vacuum creating step, the exhaust port (32) is sealed by means of a sealing material (60) and the sealing material (60), the second metal plate (30) and the backing member (50) are laser welded.

A vacuum insulation panel manufacturing method that makes it possible to manufacture low-cost, high-performance vacuum insulation panels, and a vacuum insulation panel are provided. This method of manufacturing a vacuum insulation panel (1) involves: a stacking step in which a first metal plate (20) is stacked on one side of an insulating core material (10), and in which a backing member (50) having an opening (51) and a second metal plate (30) having an evacuation port (32) are stacked, with the opening (51) and the evacuation port (32) stacking, on the other surface of the core member (10) in the order of backing member (50) and second metal plate (30) from the core member (10) side; a first welding step for welding outwards of where the core member (10) is arranged in the first metal plate (20) and the second metal plate (30); an evacuating step from the evacuation port (32) to create a vacuum in an inner area which is held between the first metal plate (20) and the second metal plate (30) and in which the core member (10) is arranged; and a laser welding step in which, in a state in which the inner area is made into a vacuum by the evacuating step, the evacuation port (32) is sealed by means of a sealing material (60) and the sealing material (60), the second metal plate (30) and the backing member (50) are laser welded.

Disclosed are laser bonding apparatuses and methods, The laser bonding apparatus comprises a stage configured to receive a substrate, a laser device that may be disposed on the stage and is configured to irradiate a laser beam onto the substrate, a first rotation support disposed outside of the stage and is configured to drivee the laser device to rotate in an azimuthal angle direction, and a second rotation support configured to support the laser device and configured to drive the laser device to rotate in a polar angle direction intersecting the azimuthal angle direction.

A vacuum insulation panel manufacturing method that makes it possible to manufacture low-cost, high-performance vacuum insulation panels, and a vacuum insulation panel are provided. This method of manufacturing a vacuum insulation panel involves: a stacking step in which a first metal plate is stacked on one side of an insulating core material, and in which a backing member having an opening and a second metal plate having an evacuation port are stacked, with the opening and the evacuation port stacking, on the other surface of the core member in the order of backing member and second metal plate from the core member side; a first welding step for welding outwards of where the core member is arranged in the first metal plate and the second metal plate; an evacuating step from the evacuation port to create a vacuum in an inner area which is held between the first metal plate and the second metal plate and in which the core member is arranged; and a laser welding step in which, in a state in which the inner area is made into a vacuum by the evacuating step, the evacuation port is sealed by means of a sealing material and the sealing material, the second metal plate and the backing member are laser welded.