An optical processing apparatus includes a light source, a condensing optical system, and a shaping optical system. The light source emits light. The condensing optical system condenses the light emitted from the light source onto a processing target position on a surface of an object to be processed. The shaping optical system shapes a spot shape of the condensed light, such that a ratio of a major axis diameter of the spot shape to a minor axis diameter of the spot shape, in a cross section orthogonal to an optical axis of the condensed light on the object to be processed, is a minimum at or adjacent to a focal position of the shaping optical system. A method for optically processing an object is also provided.

A beam delivery technology for high power laser systems, like laser peening systems, for work pieces which may have compound curvatures, includes placing an optical assembly having a receiving optic, beam formatting optics and a scanner mounted thereon, in a position to receive laser pulses from a laser source and within an operating range of the process area. Polarized laser pulses are delivered to the receiving optic while the position of the optical assembly remains unchanged. The pulses proceed through the beam formatting optics to the scanner, and are direct to respective impact areas having nominal shapes and locations on the work piece. The scanning process includes for each laser pulse, setting direction, divergence, polarization, rotation and aspect ratio of the laser pulses output from the scanner, to control the polarization, shape and location on respective impact areas.

Disclosed herein are methods, apparatus, and systems for a multi-operation optical beam delivery device having a laser source to generate the optical beam. A beam characteristic conditioner that, in response to a control input indicating a change between the different laser process operations, controllably modifies the beam characteristics for a corresponding laser process operation of the different laser process operations. A delivery fiber has an input end coupled to the beam characteristic conditioner and an output end coupled to a process head for performing the corresponding laser process operation.

A laser machining method includes obtaining a movement direction in which a head that variably makes a shape of a radiation locus using a laser is being moved by a robot that causes the head to move along a machining line, and adjusting the radiation locus made by the head to keep a constant relative angle between the movement direction obtained by the obtaining and a representative angle of the shape of the radiation locus.

The present disclosure relates to a laser apparatus including a laser oscillator for oscillating a laser beam; a mirror mount assembly including a mount-side reflective mirror for transmitting the laser beam by reflecting the laser beam; an aligner including a dial that is configured to change alignment of the mount-side reflective mirror according to a rotation angle and a rotation direction and is responsible for adjusting, by the degree of displacement of the reflection angle of the mount-side reflective mirror according to change in the alignment state, a processing optical path through which the laser beam travels, and a driving motor for driving rotation of the dial; an examination module for calculating the optical path difference between a predetermined reference processing optical path and the processing optical path and examining whether optical path distortion occurs on the processing optical path; a calculation module for, when the optical path difference exceeds predetermined reference optical path difference, calculating the target driving speed and target driving time of the driving motor for changing alignment of the mount-side reflective mirror to correct the optical path distortion so that the optical path difference is less than or equal to the predetermined reference optical path difference; and a controller for driving the driving motor according to the target driving speed and the target driving time, wherein the examination module recalculates the optical path difference between the reference processing optical path and the processing optical path that has been changed by the driving motor according to the target driving speed and the target driving time and re-examines whether the optical path distortion occurs, the calculation module recalculates the target driving speed and the target driving time based on the recalculated optical path difference when the recalculated optical path difference exceeds the reference optical path difference, and the controller drives the driving motor again according to the recalculated target driving speed and target driving time.

A laser welding method includes preliminarily heating an entire welding path by irradiating the entire welding path with a heating laser beam for a first predetermined time, the welding path being closed loop-shaped and formed at a boundary between two workpieces as welding objects, and performing scanning with a welding laser beam along the welding path while continuously performing the irradiation with the heating laser beam after the preliminary heating and terminating the irradiation with the welding laser beam after the welding laser beam goes around the welding path.

A scanner head for laser material processing with a laser beam includes focusing optics, and a beam position system that influences a position of the laser beam and is upstream of the focusing optics in a direction of propagation of the laser beam. The beam position system includes at least two controllable movable optical elements by means of which an angle of incidence of the laser beam on a processing surface of a workpiece is adjustable. A processing location of the laser beam on the processing surface is also movable in two dimensions. A beam position sensor is downstream of the beam position system and is configured to detect an actual position of the laser beam or at least four independent position parameters of the laser beam.

Laser processing machines, such as laser cutting machine, including a work table receiving workpiece, and work arm with a laser cutting head. Laser cutting head includes nozzle receiving device and nozzle. Via nozzle laser beam may be directed onto work piece. Machine includes main drives moving work arm and/or the laser cutting head on X-Y-Z axes to process work piece, as well as an alignment unit to adjust laser beam. An adjusting station includes receiving unit fixing nozzle and/or the nozzle receiving device during centering of nozzle. The alignment unit has head element in laser cutting head. Head element receives nozzle and/or the nozzle receiving device and is slidable in X-Y directions, via the main drives. Head element may be fixed in a selected position, within the laser cutting head, via clamping device releasable during nozzle centering at adjusting station.

A substrate has a first surface with at least one division line formed thereon and a second surface opposite the first surface. The substrate is processed by applying a pulsed laser beam from the side of the first surface. The substrate is transparent to the pulsed laser beam. The pulsed laser beam is applied at least in a plurality of positions along the at least one division line, a focal point of the pulsed laser beam located at a distance from the first surface in the direction from the first surface towards the second surface, so as to form a plurality of modified regions inside the substrate. Each modified region is entirely within the bulk of the substrate, without any openings open to the first surface or the second surface. Substrate material is removed along the at least one division line where the modified regions are present.

This invention provides a method for manufacturing a decorated part having a dynamic visual effect of a design that is drawn onto the surface of a work, thus reducing the manufacturing cost. The decorated part is manufactured by a laser-irradiating process, which involves irradiating a laser onto a decorative surface 4, thus forming a design 20 having many laser-processed linear grooves 21 closely aligned in a specific direction F1 on said decorative surface. Also, in the laser-irradiating process, said design 20 is formed such that the angle 2 that is made by the specific direction F1 and by the direction F2 in which the laser-processed linear grooves 21 are extending is gradually changing into the direction in which such laser-processed linear grooves are aligned.