B23K26/0344

Laser processing apparatus, control apparatus, laser processing method, and method of producing image forming apparatus

A laser processing apparatus includes a light source, a laser head configured to emit a laser beam, a robot configured to move the laser head, and a control apparatus configured to control start and stop of generation of the laser beam and control operation of the robot. The control apparatus controls the light source to generate the laser beam when a first time has elapsed after causing the robot to start an operation of accelerating the laser head such that a movement speed of the laser head with respect to a processing target object reaches a constant target speed.

Laser cutting device, control method and control apparatus

A laser cutting device comprises: a conveying mechanism (1) comprising a feeding end and a discharging end; a working platform (2) disposed at the discharging end of the conveying mechanism (1); a first counter (3) and a second counter (4) oppositely disposed at a side of the working platform (2) near the discharging end of the conveying mechanism (1) and driven respectively by two opposite side edges of a substrate (6) to rotate for counting; a laser cutter (5) disposed above the working platform (2); a control device (13) for determining a modified cutting motion path of the laser cutter according to a set cutting path, and starting and ending times of counting values of the first counter (3) and second counter (4), and for controlling the laser cutter to cut the substrate (6) according to the modified cutting motion path.

SYSTEMS AND METHODS FOR IMPROVING ACCURACY IN LARGE AREA LASER PROCESSING USING POSITION FEEDFORWARD COMPENSATION
20210229216 · 2021-07-29 ·

A laser processing system providing on-the-fly laser processing of a workpiece is disclosed. The laser processing system includes a positioning system configured to support the workpiece, a positioning system controller configured to control movement of the workpiece on the positioning system, a scanner system configured to scan a laser beam over the workpiece, and a scanner controller configured to operate the scanner system and the positioning system controller, the scanner controller receiving vector input data for use in feed-forward position compensation.

Laser cutting with feature location placement registration
10994375 · 2021-05-04 ·

A galvanometric laser for cutting and/or etching textile embellishments such as transfers or applique's and a method of operation thereof that is capable of visually capturing an incoming graphic image and referencing a cut pattern to the captured image and dynamically adjusting the cut pattern during cutting, etching and/or application of energy from the laser to thereby compensate for distortions in the fabric. The device includes a conveyor with an imaging station at which the graphic product is indexed under a high-resolution static camera with color recognition capability for the purposes of image capture. A high intensity bottoms-up light source resident at the imaging station provides ample illumination regardless of whether the design elements are face up toward the camera or face down toward the light source, or a combination of both. The system includes a computer at which the captured product image is analyzed, and the analytics are used to adjust the input cut file specifying the location and power settings for laser application. The product is then advanced in a controlled manner by means of the conveyor into a galvanometric cutting station where laser energy is applied. After completion the product is advanced out of the galvanometric cutting station for packaging.

LASER TRANSFER APPARATUS AND TRANSFER METHOD USING THE SAME

The application is related to a laser transfer apparatus and a method performed by the laser transfer apparatus. The laser transfer apparatus may include: a laser oscillator configured to perform irradiation with a laser beam; a first stage movably disposed below the laser oscillator; a second stage movably disposed below the first stage; a flatness measurement sensor; and a controller. The controller may be configured to control, once a transfer substrate on which a plurality of light emitting diodes (LEDs) are arranged is loaded on the first stage, and a target substrate is loaded on the second stage, the flatness measurement sensor to measure flatness of each of the transfer substrate and the target substrate, and adjust a height of at least one of the first stage or the second stage based on the flatness.

LASER PROCESSING METHOD FOR LONG FILM
20200368846 · 2020-11-26 · ·

A laser processing method for a long film is disclosed which has high productivity. A laser processing method according to the present invention includes a process of cutting a long film F by irradiating the long film F with a laser beam L while scanning the laser beam L by a deflecting operation of a galvanometer scanner 13 and while continuously conveying the long film F in the longitudinal direction. The control device 3 controls the deflecting operation of the galvanometer scanner 13 based on a desired cutting shape of the long film F set in advance and a conveying speed of the long film F that is calculated using a rotary encoder 2.

METHOD FOR SELECTION OF CAMERA IMAGE SECTIONS

A method for monitoring the process in laser material processing and provides a corresponding method, comprising the steps of taking a real-time image comprising the position and surrounding of the process where material processing occurs by a camera that is arranged in or on a laser material processing head; determining at least one image section in the real-time image and its position on a camera sensor; determining an actual position of the process in the material processing, and a nominal position of the relevant image detail using a projection of programmed path data for controlling the laser material processing head in the section of the real-time image, and the transfer of the at least one image section from the camera to a computer.

PROCESSING APPARATUS AND PROCESSING METHOD
20200164463 · 2020-05-28 · ·

A processing apparatus is equipped with: a first stage system that has a table on which a workpiece is placed and moves the workpiece held by the table; a beam irradiation system that includes a condensing optical system to emit beams; and a controller to control the first stage system and the beam irradiation system, and processing is performed to a target portion of the workpiece while the table and the beams from the condensing optical system are relatively moved, and at least one of an intensity distribution of the beams at a first plane on an exit surface side of the condensing optical system and an intensity distribution of the beams at a second plane whose position in a direction of an optical axis of the condensing optical system is different from the first plane can be changed.

Surface cleaning system and method
10639682 · 2020-05-05 · ·

The invention provides a surface cleaning system for cleaning said surface from contaminants, said system comprising a laser device for generating a high intensity laser beam, projection optics for projecting said beam as at least one laser spot on the contaminants, and a control device for determining a longitudinal displacement speed of said surface cleaning system and said surface with respect to one another, and adapted for controlling said laser device and said projecting optics to result in a pattern of laser spots, the laser spots having a spot size, said pattern comprising said laser spots having a spacing of up to the spot size.

APPARATUS AND METHOD FOR ADDITIVE MANUFACTURING

The invention relates to a device (100) for an additive manufacture. The device (100) comprises a laser device (110) for machining material using a laser beam (112), said laser device (110) being designed to deflect the laser beam (112) onto a machining region of a workpiece (10); at least one supply device (130) for a supply material, said supply device being designed to supply the supply material to the machining region; and an interferometer (140) which is designed to measure a distance to the workpiece (10) by means of an optical measuring beam (142).