According to an embodiment, an apparatus for manufacturing a display device includes a stage on which a target substrate is mounted, and a suction unit positioned above the stage. The suction unit includes a main body including an outer box with top and bottom openings and an inner cup disposed in the outer box, a light emitting unit disposed on at least one inner surface of the outer box, the light emitting unit providing light, and a light receiving unit disposed opposite to the light emitting unit, and disposed on at least one inner surface of the outer box, the light receiving unit receiving the light provided from the light emitting unit.

According to an embodiment, an apparatus for manufacturing a display device includes a stage on which a target substrate is mounted, and a suction unit positioned above the stage. The suction unit includes a main body including an outer box with top and bottom openings and an inner cup disposed in the outer box, a light emitting unit disposed on at least one inner surface of the outer box, the light emitting unit providing light, and a light receiving unit disposed opposite to the light emitting unit, and disposed on at least one inner surface of the outer box, the light receiving unit receiving the light provided from the light emitting unit.

A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

Provided is a laser processing apparatus configured to machine a corner portion of a sample by causing the corner portion to relatively approach a laser, the laser being emitted such that an optical axis of the laser extends in a predetermined direction, the corner portion being formed by a plurality of adjacent surfaces of the sample, the laser processing apparatus including: a detection unit provided at a position at least outside an irradiation region of the laser, the irradiation region extending in a tubular shape in a plan view intersecting the optical axis, the detection unit being configured to detect intensity of light reaching the position; approach control means for controlling an actuator relatively displacing the sample along a direction intersecting the optical axis such that the sample relatively approaches the optical axis; value acquisition means for acquiring the intensity of the light defined as a value detected by the detection unit in a predetermined positional relationship in which a tip of the corner portion has reached the irradiation region; and relationship determination means for determining a positional relationship between the laser and the sample based on the intensity of the light detected by the detection unit while the sample relatively approaches the optical axis.

Provided is a laser processing apparatus configured to machine a corner portion of a sample by causing the corner portion to relatively approach a laser, the laser being emitted such that an optical axis of the laser extends in a predetermined direction, the corner portion being formed by a plurality of adjacent surfaces of the sample, the laser processing apparatus including: a detection unit provided at a position at least outside an irradiation region of the laser, the irradiation region extending in a tubular shape in a plan view intersecting the optical axis, the detection unit being configured to detect intensity of light reaching the position; approach control means for controlling an actuator relatively displacing the sample along a direction intersecting the optical axis such that the sample relatively approaches the optical axis; value acquisition means for acquiring the intensity of the light defined as a value detected by the detection unit in a predetermined positional relationship in which a tip of the corner portion has reached the irradiation region; and relationship determination means for determining a positional relationship between the laser and the sample based on the intensity of the light detected by the detection unit while the sample relatively approaches the optical axis.

A feed mechanism moves a workpiece relative to a cylindrical machining region of laser light. A light receiver receives the laser light that has passed through without being used for machining the workpiece. An intensity detector detects light intensity of the laser light thus received. A controller detects the end of machining on the basis of the light intensity thus detected.

An article includes a ceramic material and features a machined surface that is characteristic of cold ablation laser machining, and the machined surface exhibits no visible oxidation. A laser machining apparatus and technique is based on cold-ablation, but is modified or augmented with an inert assist gas, to minimize deleterious surface modifications and mitigate the oxide formation associated with laser machining.

An article includes a ceramic material and features a machined surface that is characteristic of cold ablation laser machining, and the machined surface exhibits no visible oxidation. A laser machining apparatus and technique is based on cold-ablation, but is modified or augmented with an inert assist gas, to minimize deleterious surface modifications and mitigate the oxide formation associated with laser machining.

The present invention addresses to a laser blasting pipe for heating a scale removal treatment to be descended by electric cable, and a recirculation system with the objective of heating the scale removal solution, inside the production string during the time the reaction is taking place, in order to guarantee its efficiency. The laser blast pipe is a device similar to a metallic cylinder that can travel through the interior of a production string, being descended by gravity itself, and ascended by the action of the cable, being able to recirculate and heat the fluid. This heating would have the function of compensating the heat loss of the removal solution due to the heat exchange of the riser with the seabed, and maintaining the temperature of the reaction inside the production line in an optimal range of yield, thus aiming at increasing the reaction efficiency and the reduction of the time required for the removal of scale in the production string of the well.