Abstract:
A laser alignment system is used to align an output fiber with a fiber laser, for example, when coupling a feeding fiber to a process fiber using a beam coupler or switch. The alignment system includes a laser alignment apparatus that is coupled at a first end to the output fiber and at a second end to a beam dump / power meter. The alignment apparatus defines a light passage and a light capture chamber along the light passage. When light is not aligned into the core of the output fiber, at least a portion of the light passing out of the output fiber will be captured by the light capture chamber and detected by a photodetector in optical communication with the light capture chamber. By monitoring the readings of the photodetector, the output fiber may be properly aligned with the laser light from the fiber laser.
Abstract:
Die Erfindung betrifft eine Vorrichtung zur Lasermaterialbearbeitung mit einer Strahlablenkeinheit (16) zum Ablenken eines Laserstrahls, einer Parallel-Versatz-Einheit (14), die wenigstens drei reflektierende Spiegel aufweist, wobei ein reflektierender Spiegel der wenigstens drei reflektierenden Spiegel zum Parallelversatz des Laserstrahls drehbar ist, und einer Fokussiereinrichtung (18) zum Fokussieren des Laserstrahls auf ein zu bearbeitendes Werkstück (20).
Abstract:
A laser emitter (36) emits a laser beam (37) through optics (38) that focus the beam, and a beam deflection device (40) redirects the beam. An elongated probe (30) receives the beam at a proximal end (50) and has a remote mirror (24) that reflects the beam toward a hidden surface (32) to be processed by scanning of the beam. A programmable controller (54) controls focusing and deflection of the beam to move the focal point and spot of incidence (39) in three dimensions, causing the spot to traverse the hidden surface. The probe may optionally have translation (42) and rotation (44) actuators and a remote mirror pivot actuator (58) controlled by the controller. The probe may be L-shaped (30A, 30B) to reach around an intervening structure (27). An autofocus mechanism (67) may be provided to focus the beam during scanning or verify focus profiles before scanning.
Abstract:
본 발명은 레이저를 이용하여 양극 시트를 연속적으로 커팅할 수 있는 양극 커팅 장치에 관한 것으로서, 본 발명의 바람직한 실시예에 따른 레이저를 이용한 양극 커팅 장치는, 레이저 빔을 방출하는 레이저 발진기; 및 양극 시트를 커팅하기 위하여 상기 레이저 발진기로부터 방출된 상기 레이저 빔을 집속하여 상기 양극 시트에 조사하는 집속 렌즈;를 구비하며, 상기 양극 시트의 표면에 조사되는 레이저 빔의 초점 스폿의 사이즈는 10~50μm이고, 상기 초점 스폿에서의 에너지 밀도는 25J/cm 2 이상일 수 있다.
Abstract translation:本发明涉及能够使用激光连续切断正极片的正极切断装置。 根据本发明的优选实施例的使用激光器的正电极切割装置包括:用于发射激光束的激光振荡器; 以及聚焦透镜,用于对从激光振荡器发射的激光束进行聚焦,并将激光束照射到正极片上,以切割正极片,其中激光束的聚焦点的尺寸 照射到正极片的表面的是10-50μm,聚焦点的能量密度可以为25J / cm 2以上。
Abstract:
An additive manufacturing apparatus comprises a laser beam generator, a build surface spaced apart from the laser beam generator, and first and second adjacent optical elements disposed along a beam travel path between the laser beam generator and the build surface. The first optical element is continuously rotatable about a beam steering axis and the second optical element is continuously rotatable about the beam steering axis independently of the first optical element.
Abstract:
A system is disclosed for performing an Additive Manufacturing (AM) fabrication process on a powdered material forming a substrate. The system may make use of a diode array for generating an optical signal sufficient to melt a powdered material of the substrate. A mask may be used for preventing a first predetermined portion of the optical signal from reaching the substrate, while allowing a second predetermined portion to reach the substrate. At least one processor may be used for controlling an output of the diode array.
Abstract:
The invention relates to device for position control of a laser machining beam relative to topographical structural markers, in particular of depressions, in surfaces of workpieces, comprising: a control apparatus (11), a laser beam feed apparatus (3, 4) for providing a laser machining beam (2), a laser beam positioning apparatus (5) controlled by the control apparatus (11), for position control of the laser machining beam (2) on the surface (14) relative to the structural markers (27), and an optical detection apparatus (16) for the structural markers (27), having an illumination apparatus (17) for generating a parallel beam bundle (24), which illuminates the surface (14) having the structural markers (27) to be detected in a scanning field (A), and a camera (25) capturing the scanning field (A) for recording the beam bundle (24), which is reflected by the surface (14) and changed by the structural markers (27), wherein the camera image can be evaluated by the control apparatus (11) for detection of the position of the structural markers (27) and for corresponding position control of the laser machining beam (2).
Abstract:
Systems and methods for laser scribing provide extended depth affectation into a substrate or workpiece by focusing a laser beam such that the beam passes into the workpiece using a waveguide, self-focusing effect to cause internal crystal damage along a channel extending into the workpiece. Different optical effects may be used to facilitate the waveguide, self-focusing effect, such as multi-photon absorption in the material of the workpiece, transparency of the material of the workpiece, and aberrations of the focused laser. The laser beam may have a wavelength, pulse duration, and pulse energy, for example, to provide transmission through the material and multi-photon absorption in the material. An aberrated, focused laser beam may also be used to provide a longitudinal spherical aberration range sufficient to extend the effective depth of field (DOF) into the workpiece.
Abstract:
The present invention relates to a laser material processing system for processing a workpiece (10) by means of a laser beam (12), comprising: an optical system (16) having at least one optical component (22, 38, 40) for focusing the laser beam (12) to form a focal point (18) on the workpiece (10) or in a defined position relative to the workpiece (10); at least one inertial sensor (24) for detecting a transitional and/or rotational acceleration of the at least one optical component (22, 38, 40) of the optical system (16) and/or the workpiece (10); and a processing unit (32) connected to the at least one inertial sensor (24) for determining a relative transitional and/or rotational acceleration between the focal point (18) and the workpiece (10).
Abstract:
System ( 200 ) and method are provided for adjusting a laser beam applied to a workpiece in a processing operation. A laser processing system ( 200 ) receives the laser beam that is associated with a beam quality property. The laser processing system ( 200 ) adjusts the laser beam to change the beam quality property based on a characteristic of the workpiece, a characteristic of the processing operation, or a combination thereof. The adjusted laser beam can also be delivered to the workpiece.