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8088633 Optical alignment methods for forming LEDs having a rough surface  
A method of aligning a wafer when lithographically fabricating a light-emitting diode (LED). The method includes forming on the wafer at least one roughened alignment mark having a root-mean-square...
8044323 Apparatus for improving residual stress of piping technical field  
A weld zone of T-piping and its neighborhood are efficiently laser-heated to remove residual stress. For this purpose, the weld zone of a T-piping (50) is irradiated and heated with a laser beam...
7994449 Square-wave laser bonding  
The present invention provides a square-wave laser seal pattern made by first directing a laser beam onto an shaft while the shaft is moving in a horizontal direction relative to a laser device so...
7977601 X and Y orthogonal cut direction processing with set beam separation using 45 degree beam split orientation apparatus and method  
An X & Y orthogonal cut apparatus for scribing a pair of parallel cuts on a planar workpiece, the workpiece plane having an X-axis and a Y-axis, where the apparatus includes a laser device...
7935910 Method of laser drilling vias  
A method of forming a via hole reaching a bonding pad in a wafer having a plurality of devices on the front surface of a substrate and bonding pads formed on each of the devices by applying a pulse...
7906744 Method and device for the laser machining of workpieces  
A method for machining workpieces (6) uses a moving laser beam (4), whereby the laser tool (3) is held at a separation above the workpiece (6) by means of a multi-axis mechanical manipulator (2)...
7897893 Method for drilling holes in a substrate, in particular an electrical circuit substrate, by means of a laser beam  
Disclosed is a valve having a housing with a valve seat for a two-piece flap which is rotatably mounted on a drive shaft. An annular piston seal and an adjacent cover disk are disposed between the...
7884303 Laser thin film poly-silicon annealing optical system  
A high, energy, high repetition rate workpiece surface heating apparatus is disclosed which comprise a XeF laser producing a laser output light pulse beam, an optical system narrowing the laser...
7875828 Laser irradiation apparatus  
A laser irradiation apparatus includes a plurality of laser heads from which a laser is irradiated, can adjust arranged intervals of the laser heads, and moves freely to irradiate the laser along a...
7851725 Active beam delivery system with image relay  
An active laser energy delivery system includes a relay imaging system. Input optics arranged to receive the laser energy, a transmitting mirror having adjustable angle of incidence relative to the...
7842901 Device for drilling and for removing material using a laser beam  
A device for drilling and for removing material using a laser beam comprises: a rotating image rotator (2); a beam manipulator (1) which, when viewed in the beam direction, is arranged in front of...
7718921 Active beam delivery system with variable optical path segment through air  
A laser energy delivery system includes a relay imaging system. Input optics arranged to receive the laser energy, a transmitting mirror having adjustable angle of incidence relative to the input...
7560659 Robot-aided remote laser welding with simplified control of focusing direction of laser beam  
device for remote laser welding of metal sheet structures comprises an anthropomorphous robot onto whose wrist is mounted an accessory device carrying a focusing head for the laser beam coming from...
7473867 Laser machining apparatus  
A laser machining apparatus that excels in precision in terms of machining position and shape is provided with an optical axis adjusting unit disposed on a basal optical axis of a laser beam...
7321105 Laser peening of dovetail slots by fiber optical and articulate arm beam delivery  
A laser peening apparatus is available for laser peening a hidden surface of a workpiece, the hidden surface not being line-of-sight accessible to laser energy for treatment thereof. The apparatus...
7164099 Multi-axis laser machine, method for machining with the same, and recording medium recording computer program for controlling the same  
A multi-axis laser machine in which the working efficiency can be improved even when machining positions in respective systems are different from each other. The positioning operation of a laser...
6960740 Laser modification of complex objects  
An apparatus and method for perforating, cutting, or engraving a workpiece using a focused laser system to produce a focused laser. The apparatus includes a workpiece former having a complex shape...
6949147 In situ module for particle removal from solid-state surfaces  
Apparatus and a method for removing particles from the surface of a substrate include determining respective position coordinates of the particles on the surface. A beam of electromagnetic energy...
6920375 Optical arm for guiding a laser beam on a robot arm  
This optical arm applicable to robots is comprised of: some bent tubular parts (1, 6, 16, 18), a straight tubular length (21) and an outlet part (23), coupled together with the possibility of...
6880646 Laser wellbore completion apparatus and method  
A method and apparatus for providing fluid flow into a wellbore in which an apparatus having at least one laser energy output is lowered into the wellbore and the at least one laser energy output...
6835912 Laser cutting machine with two Y-axis drives  
A tool for machining workpieces by motion of the machining tool relative to the workpiece has a support extending in the X-axis over a work support table and movable in the Y-axis. A machining tool...
6781092 Method for drilling holes in a substrate  
When holes are being drilled in an electric circuit substrate, a laser beam is moved on concentric circular tracks in the region of the hole to be drilled. The transition from one circular track to...
6770843 Laser processing apparatus and method  
In a laser processing apparatus including a laser oscillator for emitting laser light onto a workpiece through an fθ lens for drilling a hole in the workpiece, a wavelength selector for passing ...
6680461 Nozzle system for laser machining  
A nozzle system for laser machining capable of maintaining an interference region of a robot in a teaching operation to be substantially the same as that in a laser machining operation. An optical...
6670575 Method and apparatus for removing substance from the surface of a workpiece  
A method of removing substance from the surface of a workpiece in which the removal of substance is effected layer-wise by irradiating a working site on the workpiece surface with a laser beam from...
6617544 Control apparatus for a three-dimensional laser working machine and three-dimensional laser working machine  
The control apparatus for a three dimensional laser working machine teaches a tip position and an attitude of a nozzle and carries out working based on the teaching in a three-dimensional laser...
6592690 Method for hardening ring-shaped grooves by means of laser beams  
A method for hardening the grooves of steel pistons of steel piston heads whereby hardening of the bottom of the grooves is avoided. The laser beam is directed onto the sides of the groove in an...
6578583 Apparatus for making and inspecting multi-component wrapped article  
In an apparatus for making and inspecting a multi-component cigarettes, each cigarette including two or more different components arranged relative to one another, the apparatus includes a device...
6548125 Method of internally coating a weapon barrel by means of a laser beam  
A method of coating an inner surface of a weapon barrel includes the following steps: directing a laser beam against the inner barrel surface to cause melting of regions thereof; introducing a...
6528762 Laser beam position control apparatus for a CNC laser equipped machine tool  
A laser beam position control apparatus for a CNC laser equipped machine tool, that will automatically maintain precise alignment of the beam path, though the machine may be operating in a...
6509547 Method for laser stripping of optical fiber and flat cable  
This invention results from the realization that a laser can remove the protective layer(s) from the glass or fused silica optical fiber core and cladding more effectively and more reliably than...
6495237 Denim design from laser scribing  
A number of new laser patterns are defined by laser scribing the material. This produces new laser patterns which have not previously been known.
6479790 Dual laser shock peening  
A method and system for dual laser shock peening an article are provided. The method allows for defining a spot pattern comprising a plurality of spots on a first surface of the article to be...
6470712 Method of changing the surface of a glass substrate containing silver, by using a laser beam  
A laser processing method for removing glass by melting, evaporation or ablation from sheet-like glass substrate for forming microscopic concavities and convexities. Diffraction grating and planar...
6465767 Photomultiplier tube reprocessing  
A photomultiplier tube includes dynodes electrically joined to corresponding leads. The tube, containing a loose debris particle, may be reprocessed by positioning the particle at an accessible...
6394158 Method and device for thermally bonding connecting surfaces of two substrates  
A method for the thermal connection of overlapping connecting surfaces (19, 20) of two substrates (17, 18), at least one substrate (18) being 5 transparent and laser energy being applied to the...
6384371 Laser beam machining apparatus  
A laser beam machining apparatus capable of highly accurate machining at a high speed. A parallel link mechanism including a plurality of links is fixed to a frame and a workpiece holder having...
6331691 Precision guiding apparatus for laser marking system  
An x-y axis guiding apparatus is utilized as the guiding mechanism for a laser marking device. Wear compensating bearings are utilized in conjunction with the x-y axis guiding apparatus so that the...
6327875 Control of median crack depth in laser scoring  
A glass sheet is separated by propagating a crack in the glass sheet by moving a laser beam across the surface of the glass sheet along a desired line of separation and then streaming coolant at...
6288359 Welding device for two work pieces to be joined together by a weld seam which is closed in itself  
The invention relates to a welding device operating by laser for two workpieces (1, 2) to be connected to one another via a self-contained, continuously extending weld seam (N). The welding device...
6289153 Laser aided tilt adjustment of an optical lens  
A fiber optic apparatus and a method for altering the orientation of a mirror of the fiber optic apparatus using a laser. The fiber optic apparatus comprises an optical wave guide with at least one...
6274843 Installation for laser welding of overlapping parts  
This installation (2) for laser welding at least two overlapping parts (4, 5) comprises a laser source (16), a head (18) for focusing, in the zone of overlap (6), a laser beam emitted by the...
6201214 Laser drilling with optical feedback  
The invention provides a method of drilling holes sequentially through a workpiece using a laser gun with a camera positioned axially in-line with the drilling beam of the laser gun. Each image...
6193833 Method of laser welding transmission filter housing components  
A preferred transmission filter (10) includes a first flange (18) transparent to a laser beam (58) and includes a second flange (20) opaque to the laser beam (58) and meltable upon exposure...
6130402 System and process for marking or perforating  
The invention relates to a system for marking or perforating by laser and to a marking or perforation process in said system, which is comprised of at least one laser (19) which produces a beam, a...
6103990 Laser texturing system providing even heating of textured spots on a rotating disk  
Laser texturing apparatus includes an acousto-optical modulator which deflects a continuous laser beam into a first optical projection path to texture a first side of a disk or into a second...
6018135 Laser machine with gas volume compensation  
A laser processing machine has a laser beam generator (2), a processing head (4) movable relative thereto, and a gas chamber (10) connected to a gas compensating chamber (15). The gas chamber (10)...
5988982 Altering vibration frequencies of workpieces, such as gas turbine engine blades  
A method of modifying the vibration resonance characteristics of a workpiece includes the steps of determining a vibratory resonance condition frequency of the workpiece, determining the mode shape...
5961858 Laser welding apparatus employing a tilting mechanism  
An apparatus for working material employs a tilting mechanism which tilts a head about a theoretical point disposed upon the sheet material. The welding or cutting head is defined as a laser head...
5900171 Laser machining apparatus with head support by angularly movable expandable arms  
A laser machining apparatus capable of performing a high-speed and high-precision machining of a workpiece. One end of each of a first-axis and a second-axis expandable arms is supported on a...
Matches 1 - 50 out of 178 1 2 3 4 >