65 results about "Laser beam guide" patented technology

A kaleidoscopic laser beam projector (KLBP) system that employs a single moving structure to project patterns of sweeping laser beams with diverse sweep directions and emission apertures. The system comprises a collimated light source, a spinning mirror deflector (“spindle / flutter mirror”) at the center, and a stationary kaleidoscopic mirror containing multiple facet mirrors arranged in a concave fashion around the spindle mirror. As the spindle mirror rotates, it directs laser beams in a radially whirling movement toward the facet mirrors, which then subdivide these beams into multiple short strokes and redirect them outward in different directions. Various embodiments include configurations with diffractive optical elements (DOEs) for beam splitting, different kaleidoscopic mirror geometries (hexagonal, octagonal, etc.), and innovative flutter mirror mechanisms that create controlled angular variations during rotation. The system enables a “4×1” configuration that replaces traditional “4×4” systems requiring eight motors and multiple moving structures. The KLBP system offers significant advantages including mechanical simplicity, reduced size and weight, improved energy efficiency, enhanced reliability, cost-effectiveness, and modular configurability. The diverse beam incidence angles enable superior illumination of complex three-dimensional objects for applications in machine vision systems, precision metrology, gap and flushness inspection, and robot-assisted assembly of complex structures.

The invention relates to the technical field of integrated circuit board manufacturing and packaging, and discloses an integrated circuit board manufacturing and packaging method and system based on laser measurement, and the method comprises the steps: sensing arrangement: employing a focusing lens to focus a laser beam to the surface of a substrate, arranging a reflector and a spectroscope to guide the laser beam to the surface of the substrate, meanwhile, a sensor is arranged in the packaging equipment for monitoring; signal conversion: receiving a reflected light signal by adopting a silicon photodiode, and converting the reflected light signal into an electric signal; data acquisition: acquiring electric signal data, environment data and substrate information data; data calculation: calculating a warping prediction index and an offset prediction index; data evaluation: evaluating the packaging effect index; and comprehensive judgment: according to the packaging result index, judging whether automatic adjustment and compensation need to be carried out, and under the condition that automatic adjustment and compensation need to be carried out, calculating a compensation coefficient to carry out automatic compensation, so that active suppression of the substrate warping offset defect and intelligent improvement of the process efficiency are realized.

In certain embodiments, an ophthalmic laser system includes a laser system, imaging system, and computer. The laser system accesses a planned test pattern of planned laser spots and directs a laser beam towards a test target located at a target plane according to the planned test pattern to yield an actual test pattern of actual laser spots on the test target. The actual laser spots correspond to the planned laser spots. The imaging system has a digital camera that generates a digital image of the actual test pattern. The computer analyzes the digital image to: compare the actual test pattern to the planned test pattern; detect a deviation of the actual from the planned test pattern; identify an issue indicated by the deviation; and provide output in response to the identified issue.

The Micro LED laser mass welding device specifically comprises a scanning galvanometer, a moving assembly and a feeding assembly, the moving assembly is connected with a light guide barrel and a reflection block which are distributed in a staggered mode, and a light equalizing lens and a focusing lens which are distributed in parallel are installed in the light guide barrel; the area covered by the laser beam guided by the scanning galvanometer in the first direction is a welding area; wherein the feeding assembly is used for conveying a PCB substrate provided with a plurality of Micro LED chips into or away from a welding area, and the reflection block is provided with a first detection camera in parallel; the moving assembly is used for driving the light guide cylinder and the reflection block to alternately enter or leave the welding area in the second direction. Through combined use of the light guide cylinder, the light equalizing lens and the focusing lens, an optical path is effectively optimized, laser energy distribution is more uniform, the focusing precision is higher, the welding quality is improved, and the defect rate is reduced. Therefore, the technical problem that in the prior art, energy distribution of laser beams output by a laser head is not uniform is solved.

A downhole fishing tool for retrieving an object from a wellbore includes a main body assembly, one or more nozzles configured to dispose a cladding powder on the object when the object is proximate to the tool, and one or more lenses configured to direct a laser beam at the cladding powder disposed on the object, thereby welding the fishing tool to the object such that pulling the tool in an uphole direction pulls the object along with the fishing tool.

A laser machining device (100) for machining a workpiece (12), in particular for laser cutting or laser welding, is disclosed. The device (100) has: an interface (14) for coupling to a laser beam source for machining a laser beam (15); an outlet opening (11) for processing the laser beam (15); and an optical system (20) located between the interface and the outlet opening (11). The optical system (20) has at least one laser beam guiding device (25) for guiding the machining laser beam (15) in the beam path to the outlet opening (11). The laser beam guiding device (25) comprises at least two high-frequency laser scanners (30) connected in series in the beam path in the propagation direction z of the processing laser beam (15). The high-frequency laser scanners (30) each provide a maximum setting angle for deflecting the machining laser beam in a first setting plane xz. The series connection of the high-frequency laser scanners (30) achieves a maximum total set angle on a first set plane xz.

Monitoring device, system and method for detecting an element in a fluid. The monitoring device (1) comprises a particle sensor (139), a VOC sensor (132) that includes a compartment (131), a lens (133) and a laser emitter (135) and a concave mirror (134) optically coupled with the lens (133). The particle sensor (139) electrostatically filters particles in a fluid sample (101b), provides a filtered fluid sample (101a) to the compartment (131), and provides particle data in the fluid sample. The concave mirror (134) concentrates laser light refracted by the filtered fluid sample (101a) in the compartment (131) and directs said concentrated laser light to a measurement area (132a) of the VOC sensor (132). The VOC sensor (132) collects spectrophotometric data (102a) based on Raman spectrography on the filtered fluid sample (101a) from the compartment (131).

The invention relates to a separating machine (10) for separating individual printed circuit boards (12) from a printed circuit board panel (14), said separating machine (10) comprising: at least one first laser source (16) for generating a first laser beam and a first laser spot on the printed circuit board panel (14); at least one first laser beam guide (22) for directing the at least one first laser beam onto the printed circuit board panel (14), wherein the first laser beam guide (22) is designed in such a way that the at least one first laser spot can be moved over the printed circuit board panel (14); at least one first base plate (28) which can be moved on a machine frame (26) and on each of which at least one printed circuit board panel (14) can be arranged; at least one first linear direct drive (29) for moving the at least one base plate (28) parallel to a x-axis, wherein the at least one first linear direct drive (29) comprises a respective motor part and a magnetic rail which interacts with the motor part; a control unit (30) for controlling the at least one first laser beam guide (22) and the at least one first linear direct drive (29), wherein the control unit (30) is designed in such a way that the at least one first laser beam guide (22) and the at least one first linear direct drive (29) are moved simultaneously, such that the movement of the printed circuit board panel (14) and the movement of the first laser beam for moving the laser spot over the printed circuit board panel (14) are overlaid.

Laser processing head (1) for welding two workpieces (94, 95) using a laser beam, the laser processing head (1) comprising: an entry port (10) for coupling the laser beam into the laser processing head (1), a focusing optic (20) for directing the laser beam onto the workpieces (94, 95), a feed device (30) for the contactless feeding of a welding filler material, wherein the feed device (30) is arranged at a distance from a beam axis of the laser beam, a first observation device (40) which is arranged at a distance from the beam axis of the laser beam and is configured to detect a first observation signal from an area (91) in the processing direction in front of the laser beam, and a control device (60) which is configured to control and / or regulate the welding based on the first observation signal.

A laser processing head (50) for directing laser light onto a workpiece (WP), wherein the laser processing head (50) comprises the following: - a collimator (64) arranged in an optical axis of the laser light and configured to convert the laser light into collimated light; - a beam splitter (70) arranged in the optical axis between the collimator and a main output at an angle to the collimated light and having at least two sections arranged on a surface of the beam splitter (70), wherein the at least two sections comprise a peripheral antireflective section (72) configured to allow peripheral light of the collimated light at least partially to pass to the main output (55a), and an inner highly reflective section (74), wherein the peripheral region surrounds the inner region, and wherein the inner highly reflective section (74) has an oval shape such that the angled oval inner highly reflective section (74) reflects a secondary laser beam (SB) having a cylindrical shape towards a focusing lens 76 for a secondary fiber (40); - the main output (55a) which is arranged in optical connection with the beam splitter (70), wherein the main output (55a) is configured to direct at least the first light into a main laser beam onto the workpiece (WP); and - a secondary output (55b) arranged in optical connection with the beam splitter (70), wherein the secondary output (55b) is configured to direct at least the second section into a secondary laser beam alongside the main laser beam and comprises the following: - at least one focusing lens (68) arranged in optical connection with the beam splitter (70) and configured to focus any collimated light transmitted from the beam splitter (70) and falling onto the focusing lens (68); and - at least the secondary fiber (40) which has an input arranged in optical connection with the focusing lens (76) and which has an output arranged in optical connection with the workpiece (WP).

The invention relates to a Fabry-Pérot cavity demodulation device (40), comprising: - at least two laser sources (12, 14), one with a first wavelength (λ1), the other with a second wavelength (λ2), different from the first wavelength; - optical means (22, 24, 30, 32) for directing the laser beams from these at least two sources towards a Fabry-Pérot cavity (40) and for capturing the laser beams from these at least two sources that are reflected by this cavity; - at least one detector (52, 54) for receiving the intensities of the laser beams from these at least two sources that are reflected by this cavity; - computing means (70) for calculating the ratio of said intensities. Figure 2

A semiconductor manufacturing apparatus for an epitaxial process includes: a process chamber including an edge ring supporting an outer lower surface of a semiconductor substrate so that a lower surface of the semiconductor substrate is exposed, a substrate holder supporting the outer lower surface of the semiconductor substrate, and a laser beam transmitting plate supporting the outer lower surface of the semiconductor substrate; the substrate support supports the lower surface of the outer side of the edge ring, and the laser beam transmission plate is located on the lower portion of the semiconductor substrate. A substrate heating unit that irradiates a laser beam of a vertical cavity surface emitting laser (VCSEL) module to the lower surfaces of the semiconductor substrate and the edge ring through a laser beam transmission plate; and a laser beam guide portion that irradiates the lower surface of the edge ring with a laser beam of the vertical cavity surface emitting laser module, the substrate heating portion being divided into a heating substrate region where the vertical cavity surface emitting laser module is located, a heating edge region, and a heating support region. The laser beam guide portion guides and irradiates a laser beam irradiated from the vertical cavity surface emitting laser module located in the heating support region to the lower surface of the edge ring.

A method for producing a structured glass disk is provided that includes the steps of: providing a glass disk having a thickness of at most 400 μm; directing and focusing a laser beam onto the glass disk such that the laser beam produces an elongated focus within the glass disk with an intensity sufficient to produce damage within the glass disk along the elongated focus; moving the laser beam and the glass disk relative to one another to insert damage zones along a ring-shaped path so that a workpiece is defined in the glass disk with the ring-shaped path encompassing the workpiece and with the workpiece remaining connected to the glass disc; exposing the glass disk to an etchant so that the etchant intrudes into the damage zones; and chemically toughening the glass disk with the workpiece.

The invention relates to a measuring assembly (46) comprising a deflection unit (16) for directing a machining laser beam (14) onto a surface to be machined, in particular a machining head (18) of a laser machining device (10), and a measuring optical unit (34), which is arranged upstream of the deflection unit (16) in a beam propagation direction (52), for coupling a measuring beam (36, 36a, 36b) into the deflection unit (16); wherein the measuring optical unit (34) has a measuring scanner (50) for deflecting the measuring beam (36, 36a, 36b) in a scanning plane (64, 66) in at least one scanning direction transversely to the beam propagation direction (52) of the measuring beam (36, 36a, 36b); wherein the measuring optical unit (34) has a lens group (86), which is arranged downstream of the measuring scanner (50) in the beam propagation direction (52), for determining an imaging position (70) of the scanning plane (64, 66) in the beam propagation direction (52) at or downstream of an input aperture (40) of the deflection unit (16), wherein the lens group (86) has an entry lens (88) or has an entry lens subgroup with positive refractive power for refracting the measuring beam (36) entering the lens group (86) and an exit lens (90) or an exit lens subgroup with positive refractive power for refracting the measuring beam (36, 36a, 36b) exiting the lens group. The invention further relates to a laser machining device (10).

A magnetometer device structured to measure a magnetic field while minimizing an effect of vibration on output. The device may comprise a laser cavity network containing a plurality of spatially-distinct cavity arms, each comprising a gain chip configured to generate a laser beam towards one or more optical elements disposed optically in line with the laser beam, configured to direct the laser beam towards a nitrogen vacancy (NV) diamond. The device may further comprise the NV diamond, configured to accept a plurality of laser beams of the plurality of cavity arms without a common output coupler, preventing the plurality of laser beams from spatially overlapping, and measure the magnetic field in response to the plurality of laser beams. The device may further comprise a reflective element for reflecting each laser beam back into each cavity arm.

A spectrometer including a laser for generating a laser beam, a lens for directing the laser beam to a location of a sample, and a component for directing the laser beam to the lens so as to be co-axial with the lens' optical axis, the spectrometer including a beam splitter for directing the part of the laser beam towards a sensor arranged such that part of the laser beam can be used for monitoring alignment of the laser beam with the lens' optical axis, and wherein the spectrometer comprises a laser beam path correction element. Optionally the spectrometer includes an element for directing the part of the laser beam towards a sensor.

A substrate processing system includes a processing chamber, a substrate support, a laser, and a collimating assembly. The substrate support is disposed in the processing chamber and is configured to support a substrate. The laser is configured to generate a laser beam. The collimating assembly includes lenses or mirrors arranged to direct the laser beam at the substrate to heat an exposed material of the substrate. The lenses or mirrors are configured to direct the laser beam in a direction within a predetermined range of being perpendicular to a surface of the substrate.

In certain embodiments, an ophthalmic laser system include a laser system, imaging system, and computer. The laser system accesses a planned test pattern of a planned laser spot having a planned beam feature and directs a laser beam towards a test target located at a target plane according to the planned test pattern to yield an actual test pattern of an actual laser spot having an actual beam feature. The imaging system includes one or more digital cameras that generate a digital image of the actual test pattern of the actual laser spot. The computer analyzes the digital image to compare the actual laser spot to the planned laser spot, to detect a deviation of the actual beam feature from the planned beam feature, to identify an issue indicated by the deviation, and to provide output in response to the issue.

System and methods for evaluating build platform flatness and parallelism relative to a focal plane of a high-speed laser in high-speed laser motion systems, wherein the high-speed laser motion systems include the high-speed laser that generates a laser beam, and the build platform having a work plane, comprising positioning a plurality of pin-hole sensors within the focal plane of the high-speed laser, wherein each of the pin-hole sensors is positioned at a predetermined location; directing the laser beam to the predetermined locations of each pin-hole sensor; measuring a spot size of the laser beam at each pin-hole sensor, wherein the spot size at each pin-hole defining structure has a measureable diameter; comparing the measurable diameters obtained at each pin-hole sensor; and adjusting the work plane of the build platform to a position where the measurable diameters of the spot sizes are equal at each pin-hole sensor.

In one or more embodiments, an ophthalmic system includes a chassis, a delivery arm, a gantry, and a computer. The chassis is coupled to a laser source that can generate a laser beam. The delivery arm is coupled to a laser head that can direct the laser beam towards a target. The gantry includes a positioning system and an adjustment system. The positioning system facilitates motion of the delivery arm and includes an angular system that can facilitate angular motion of the delivery arm. The adjustment system includes linear subsystems that can facilitate motion of the delivery arm. The computer system detects a request for movement of the delivery arm and determines an angle of angular movement of the delivery arm relative to the chassis. The computer system generates an instruction for the requested movement according to the request and the angle and sends the instruction to the adjustment system.

Additive manufacturing enables near-net-shape fabrication of high silicon electrical steel alloys. The wide array of process conditions provides additive manufacturing with increased flexibility, enabling control over the microstructure and mechanical properties, compared to conventional rolling and sheet fabrication. As an example of the invention, microstructures and magnetic properties of ring-shaped Fe—Si alloys produced using concentric and cross-hatch tool paths on a laser beam-directed energy deposition additive manufacturing system were evaluated. Build strategies and thermal treatments can be selected to enable the use additively manufactured Fe—Si alloys in electrical power conversion applications.

A laser apparatus includes an output optical fiber including a first optical waveguide and a second optical waveguide, a first laser light source that generates a laser beam, a first input optical fiber through which the laser beam generated by the first laser light source propagates, a second laser light source that generates a laser beam, a second input optical fiber through which the laser beam generated by the second laser light source propagates, and an optical combiner that is configured such that the first input optical fiber is optically connected to the first optical waveguide and the second input optical fiber is optically connected to the second optical waveguide, and directs the laser beam from the first laser light source to the first optical waveguide and the laser beam from the second laser light source to the second optical waveguide.

To provide a laser oscillator capable of suppressing output deterioration and beam quality deterioration of a high-output laser beam guided by an optical fiber.SOLUTION: The laser oscillator 90 includes a laser module 10 having a laser light source that emits a first laser beam LB1, optical fibers 80, and a condensing optical unit 40. The condensing optical unit 40 includes a condenser lens 42 and a birefringent device 43 disposed between the condenser lens 42 and the incident ends 80A of the optical fibers 80. The first laser beam LB1 transmitted through the birefringent device 43 is separated into a first sub-beam LB11 and a second sub-beam LB12, and each of the first sub-beam LB11 and the second sub-beam LB12 is incident on the core 81 of the optical fibre 80 as a laser beam LB.SELECTED DRAWING: Figure 2

Monitoring device, system and method for detecting an element in a fluid. The monitoring device (1) comprises a particle sensor (139), a VOC sensor (132) that includes a compartment (131), a lens (133) and a laser emitter (135) and a concave mirror (134) optically coupled with the lens (133). The particle sensor (139) electrostatically filters particles in a fluid sample (101b), provides a filtered fluid sample (101a) to the compartment (131), and provides particle data in the fluid sample. The concave mirror (134) concentrates laser light refracted by the filtered fluid sample (101a) in the compartment (131) and directs said concentrated laser light to a measurement area (132a) of the VOC sensor (132). The VOC sensor (132) collects spectrophotometric data (102a) based on Raman spectrography on the filtered fluid sample (101a) from the compartment (131).

A laser scan head includes a laser to generate a laser beam, one or more optical elements to direct the laser beam to a workpiece, one or more galvo drivers connected to the one or more optical elements to control positions of the one or more optical elements, one or more position detectors associated with the one or more galvo drivers to detect positions of the one or more galvo drivers at predetermined time intervals and generate position signals, at least one photodiode to detect light reflected from the surface of the workpiece at the predetermined time intervals and generate reflected light signals, and at least one controller to receive the position signals and the reflected light signals to associate the position signals with the reflected light signals.

The invention relates to a laser system for generating secondary radiation (108) by interaction of a focused primary laser beam (104) with a target material (106), the laser system comprising: a laser beam source (102) for providing a raw laser beam (110) having ultra-short laser pulses; a target region (114) for arranging a target material (106); a beam guiding device (112) for forming a focused primary laser beam (104) from the raw laser beam (110), the focused primary laser beam (104) being guided to a target region (114) for interacting with a target material (106) arranged in the target region (114), the beam guiding device (112) having a beam focusing device (126) for focusing the focused primary laser beam (104) with the target material (106) arranged in the target region (114), a beam focusing device (126) arranged to form a primary laser beam (104) by focusing a laser beam (129) entering the beam focusing device (126), the laser beam (129) entering the beam focusing device (126) being based on or corresponding to the original laser beam (110), and wherein the beam focusing device (126) has at least two spherical mirror elements (154, 156; 176, 180) is provided. According to the invention, when the primary laser beam (104) propagates in a medium having a refractive index of less than 1.01, the numerical aperture of the beam focusing device is between 0.001 and 0.01.

Systems and methods for cutting substrates including metals, for example, lithium metals, which can be used in energy storage devices. In one aspect, a system for slitting a flexible support layer stack is provided. The system includes a laser source configured to generate a laser beam, the laser beam directed toward a first surface of a flexible support layer stack. The system further includes an optical scanner configured to direct the laser beam toward the first surface of the flexible support layer stack. The system further includes a pickup roller positioned opposite the laser beam, the pickup roller positioned to contact a second surface of the flexible support layer stack, the second surface opposite the first surface. The system further includes a cutting assembly positioned downstream of the laser beam.

The present disclosure describes methods and systems for downhole well integrity reconstruction in a hydrocarbon reservoir. One method for downhole well integrity reconstruction in a hydrocarbon reservoir includes: positioning, a laser head at a first subterranean location, wherein the laser head is attached to a tubular inside of a wellbore; directing, by the laser head, a laser beam towards a leak on the wellbore; and sealing the leak using the laser beam.

A photodetector is made sufficiently large to receive an entire designed field of view (e.g., for a LiDAR system). At least one lens is mounted to direct reflected laser beams to the photodetector. A plurality of electrodes (e.g., 16, 32 or 64) are coupled to the photodetector, each electrode corresponding to a different pixel position. A processor is coupled to the plurality of electrodes and the processor is configured to detect a pixel position of a reflected laser beam by detecting which electrode produces the largest digital signal.

This invention provides a light-emitting module that allows adjustment of the direction of the laser beam emitted from a laser light source. [Solution] The light-emitting module comprises a support base having a first mounting surface and a plurality of second mounting surfaces, the plurality of second mounting surfaces being aligned in a first direction and positioned in a second direction with respect to the first mounting surface when viewed from above, with the height of the plurality of second mounting surfaces decreasing along the first direction; a plurality of laser light sources, each positioned on the first mounting surface and emitting a laser beam in a second direction when viewed from above; a plurality of mirror members, each positioned on the corresponding second mounting surface and reflecting the laser beam emitted from the corresponding laser light source in a first direction; a plurality of light deflection members, each positioned on the first mounting surface and directing the laser beam emitted from the corresponding laser light source towards the corresponding mirror member; and a focusing lens, each combining the plurality of laser beams reflected in the first direction.