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:
The present invention relates to laser marking articles. In particular it relates to laser marking articles by laser ablating a coating applied to the article which reveals the surface of the article underneath, thereby forming the mark by the contrasting appearance between the revealed surface of the article and the adjacent remaining coating. Laser parameters are selected to provide uniform, commercially desirable appearance and avoid damage to the underlying surface while maintaining acceptable system throughput. In particular the laser pulse envelope is tailored to provide desirable appearance while maintaining acceptable system throughput.
Abstract:
A lead frame machining method and a lead frame machining apparatus which can process easily and at a high speed a very small lead frame, can improve dimensional ;precision and quality after machining and can moreover accomplish mass-production at a low cost. When a metallic plate 1101 is machined by irradiation of a laser beam, a laser beam 1011 generated in a pulse-like form and having a round sectional shape is converted to a slender laser beam 1012 having an elliptic sectional shape by a beam section converter 1020, and the section of the laser beam 1012 is caused to turn on its own axis by a beam rotation device 1030 so that the :Longitudinal direction of the section of the laser beam 1012 is in conformity with the longitudinal direction of an inner lead 1013 and the optical axis of the laser beam 1015 is turned around along concentric paths 161 to 174 having the original optical axis at the time of generation of the laser beam 1011 as the center. A laser beam 3011 generated in the pulse form and having a round section is converted to a slender laser beam 3012 having a elliptic section by a beam section converter 3020, and the section of the laser beam 3012 is caused to turn on its own axis by a beam rotation device 3030 so that the longitudinal direction of the section of the laser beam 3012 is in conformity with that of the inner lead 1013, and the optical axis of the laser beam 3014 is moved along a large number of rectangular paths 191 to 198 sharing the point of intersection of diagonals with one another and having relative sides which are parallel to and equidistantly apart from one another. Accordingly, a large number of inner leads 1013 extending radially and linearly can be formed.
Abstract:
The thermal processing device includes a stage (216), a continuous wave (cw) electromagnetic radiation source (202), a series of lenses (210), and a translation mechanism (218), and a controller (226). The stage (216) is configured to received a substrate (214). The cw electromagnetic radiation source (202) is disposed adjacent the stage (216), and is configured to emit cw electomagnetic radiation along a path towards the substrate (214). The series of lenses (210) is disposed between the cw electromagnetic radiation source (202) and the stage (216), and are configured to condense the cw electromagnetic radiation into a line of cw electomagnetic radiation (222) on a surface of the substrate (214).
Abstract:
The invention relates to a device for filling and sealing ampoules and a method for sealing ampoules. The invention provides for the ampoules to be sealed by the action of a laser beam. To this end, in the case of the ampoule filling and sealing device provided for in the invention at least one laser is assigned to a sealing station of said device.
Abstract:
A process and device are disclosed for fine and micro-machining workpieces by means of laser beams. The process is conducted in several stages and the device has a modular design. The process and device make it possible to generate highly uniform cut joints or grooves, to set the required conicity, to work in a highly accurate and reproducible manner and give a great freedom of design during machining.
Abstract:
The invention relates to an optical device for boring using a laser beam (5), comprising an optical system for guiding the laser beam (5) on a circular cutting course, said optical system being arranged in the beam path, and focusing optics (6) for focusing the laser beam (5) on a workpiece (7). The optical system contains an image rotation device (4) which can be rotated separately, the beam being guided on the cutting course with said image rotation device. The inventive device is therefore simply constructed and has a simple means of adjusting the various parameters.