Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.

Abstract: An irrigation and aspiration system that includes a catheter shaft having a distal end that is in fluid communication with an interior of a kidney, an irrigation channel and an aspiration channel extending through the shaft, a bypass channel fluidly coupled with the irrigation channel and the aspiration channel a bypass valve configured to control a level of fluid communication between the irrigation and aspiration channels via the bypass channel, an aspiration pump, at least one valve disposed on the aspiration channel and configured to provide a pulsed flow of fluid in the aspiration channel, a pressure sensor in fluid communication with an interior of the kidney, and a controller configured to: receive at least one pressure measurement, compare the measured pressure to a threshold, and based on the comparison, send a control command to at least one of the bypass valve, aspiration pump, and the at least one valve.

Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.

Abstract: A laser cutting head includes a controllable collimator with movable collimator lenses for controlling beam diameter and/or focal point location. The laser cutting head may be used in a laser cutting system with a control system for controlling the position of the movable collimator lenses. The lenses may be moved, for example, to adjust the beam spot size for cutting different types of material or material thicknesses. The lenses may also be moved to adjust a focal point back to the workpiece after changing the distance of the laser cutting head relative to the workpiece.

Abstract: A laser cutting head with movable mirrors may be used to move a beam, for example, to provide beam alignment and/or to provide different wobble patterns for cutting with different kerf widths. The laser cutting head includes a cutting nozzle for directing the laser beam together with a gas to a workpiece for cutting. The movable mirrors provide a wobbling movement of the beam within a relatively small field of view, for example, within an aperture of the cutting nozzle. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the cutting head such as a thermal condition proximate one of the mirrors.

Abstract: Laser processing systems and methods image a multiple core array to a work surface in a multiple processing beam array. An optical system separates processing beams and converges the beams toward the work surface and focuses each beam of the array at or near the work surface. A central axis with access for filler material flow to the work surface is provided. The processing beam array and central filler material feed provide omni-directional additive laser processing capability.

Abstract: Laser processing systems and methods image a multiple core array to a work surface in a multiple processing beam array. An optical system separates processing beams and converges the beams toward the work surface and focuses each beam of the array at or near the work surface. A central axis with access for filler material flow to the work surface is provided. The processing beam array and central filler material feed provide omni-directional additive laser processing capability.

Abstract: Laser processing systems and methods image a multiple core array to a work surface in a multiple processing beam array. An optical system separates processing beams and converges the beams toward the work surface and focuses each beam of the array at or near the work surface. A central axis with access for filler material flow to the work surface is provided. The processing beam array and central filler material feed provide omni-directional additive laser processing capability.

Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.

Abstract: Laser processing systems and methods image a multiple core array to a work surface in a multiple processing beam array. An optical system separates processing beams and converges the beams toward the work surface and focuses each beam of the array at or near the work surface. A central axis with access for filler material flow to the work surface is provided. The processing beam array and central filler material feed provide omni-directional additive laser processing capability.

Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.

Abstract: A laser cutting head includes a controllable collimator with movable collimator lenses for controlling beam diameter and/or focal point location. The laser cutting head may be used in a laser cutting system with a control system for controlling the position of the movable collimator lenses. The lenses may be moved, for example, to adjust the beam spot size for cutting different types of material or material thicknesses. The lenses may also be moved to adjust a focal point back to the workpiece after changing the distance of the laser cutting head relative to the workpiece.

Abstract: A laser cutting head includes a controllable collimator with movable collimator lenses for controlling beam diameter and/or focal point location. The laser cutting head may be used in a laser cutting system with a control system for controlling the position of the movable collimator lenses. The lenses may be moved, for example, to adjust the beam spot size for cutting different types of material or material thicknesses. The lenses may also be moved to adjust a focal point back to the workpiece after changing the distance of the laser cutting head relative to the workpiece.

Abstract: A laser cutting head with movable mirrors may be used to move a beam, for example, to provide beam alignment and/or to provide different wobble patterns for cutting with different kerf widths. The laser cutting head includes a cutting nozzle for directing the laser beam together with a gas to a workpiece for cutting. The movable mirrors provide a wobbling movement of the beam within a relatively small field of view, for example, within an aperture of the cutting nozzle. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the cutting head such as a thermal condition proximate one of the mirrors.

Abstract: Laser processing systems and methods image a multiple core array to a work surface in a multiple processing beam array. An optical system separates processing beams and converges the beams toward the work surface and focuses each beam of the array at or near the work surface. A central axis with access for filler material flow to the work surface is provided. The processing beam array and central filler material feed provide omni-directional additive laser processing capability.

Abstract: A laser cutting head includes a controllable collimator with movable collimator lenses for controlling beam diameter and/or focal point location. The laser cutting head may be used in a laser cutting system with a control system for controlling the position of the movable collimator lenses. The lenses may be moved, for example, to adjust the beam spot size for cutting different types of material or material thicknesses. The lenses may also be moved to adjust a focal point back to the workpiece after changing the distance of the laser cutting head relative to the workpiece.

Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.

Abstract: A laser processing system is disclosed for providing a relatively small velocity of a laser beam at target location while at least one scanner scans at a relatively larger velocity. The system includes a laser source, a first scanning unit, a beam expander, a second scanning unit and focusing optics. The laser source is for providing a pulsed laser output having at least one beam with a beam dimension. The first scanning unit is for scanning the laser output in a first direction along a first axis at the target location. The beam expander is for receiving the laser output and for modifying a beam diameter of the laser output and providing a modified laser output. The second scanning unit is for scanning the modified laser output from the beam expander in a second direction along the first axis at the target location.

Abstract: A laser processing system is disclosed for providing a relatively small velocity of a laser beam at target location while at least one scanner scans at a relatively larger velocity. The system includes a laser source, a first scanning unit, a beam expander, a second scanning unit and focusing optics. The laser source is for providing a pulsed laser output having at least one beam with a beam dimension. The first scanning unit is for scanning the laser output in a first direction along a first axis at the target location. The beam expander is for receiving the laser output and for modifying a beam diameter of the laser output and providing a modified laser output. The second scanning unit is for scanning the modified laser output from the beam expander in a second direction along the first axis at the target location.

Abstract: The invention provides a method and apparatus for directing a radiation beam (504, 606) in a desired direction. There is provided a movable member (10) supported for movement by a fixed member (40) and the movable member has an optical element, e.g a flat mirror (30) fixedly attached thereto. In one embodiment the mirror scans a radiation beam incident thereon in one plane. In a second embodiment, the radiation beam is scanned in two mutually perpendicular planes. A magnetic element (50) having a north and a south magnetic pole is fixedly attached to the movable member (10). A magnetically permeable stator element (70) that is stationary with respect to the movable member (10) and the magnetic element (50) is placed in the field of the magnetic element such that the stator element and said magnetic element mutually generate a magnetic traction force between them.