38 results about "Laser beam guide" patented technology

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.

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 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 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.

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.

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

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.

The invention relates to a laser device (2) comprising at least one laser processing head (7) configured to direct a plurality of laser beams (4) towards the support surface (6) and / or comprising a plurality of laser processing heads (7a, 7b), each configured to direct at least one laser beam (4a, 4b) towards the support surface (6), wherein a first movement device (8) for moving the at least one laser processing head (7) and / or the plurality of laser processing heads (7a, 7b) along a first axis of movement (X), a second movement device (9) for moving the at least one laser processing head (7) and / or the plurality of laser processing heads (7a, 7b) along a second axis of movement (Y), and a third movement device (10) for moving the at least one laser processing head (7) and / or the plurality of laser processing heads (7a, 7b) along a second axis of movement (Y).7b) are provided along a third axis of motion (Z) and that the laser device (2) comprises a control unit (11) configured to control the first motion device (8), the second motion device (9) and the third motion device (10) and to control the at least one laser processing head (7) and / or the plurality of laser processing heads (7a, 7b) such that at least one process parameter of the at least two laser beams (4, 4a, 4b) can be individually changed and / or the at least two laser beams (4, 4a, 4b) can be individually switched on and off.

The utility model discloses a steel rail omni-directional light wave detection system which comprises a laser beam guiding mechanism sliding on the top of a damaged steel rail and a laser simulator arranged in the laser beam guiding mechanism, and laser of the laser simulator is emitted to the damaged position of the damaged steel rail through the laser beam guiding mechanism. The device has the characteristics of simple structure, high practicability, accurate detection and high detection efficiency, and is suitable for large-scale popularization and application in a track flaw detection system.

This reflection part unit of a light source device is provided with: a reflection part (30a) that reflects a laser beam bundle (B) toward a condensing optical system (50), the condensing optical system (50) being for directing the reflected laser beam bundle (B) toward a phosphor part (40); and a support member (60) that supports the reflection part (30a) such that the reflection part (30a) is positioned with respect to the phosphor part (40). The support member (60) positions the reflection part (30a) with respect to the condensing optical system (50) such that the laser beam bundle (B) passes through the condensing optical system (50) in a first direction and fluorescence radially emitted from the phosphor part (40) passes through the condensing optical system (50) in a second direction opposite to the first direction. The support member (60) supports the reflection part (30a) such that a range of the reflection part (30a) is 1 / 3 or less of an area of a lens surface of the condensing optical system (50) through which the fluorescence finally passes in the second direction.

To excellently control an irradiation position of a laser beam.SOLUTION: A mobile removal device configured to irradiate an inhibitor that may inhibit the growth of a plant with a laser beam includes a camera, a control unit, and a laser beam guide unit. The guide unit has a reflection part of the laser beam. The control unit displaces at least one of the camera and the reflection unit to make a transition between an interference state in which the reflection unit is located in an imaging range of the camera and a non-interference state in which the reflection unit does not prevent detection of the inhibitor based on an image captured by the camera. The control unit irradiates the inhibitor with the laser beam in the interference state, and detects the inhibitor based on the captured image in the non-interference state.SELECTED DRAWING: Figure 1

An XY deflection unit for laser light comprises: a tube, which includes: a first port for attaching a single-mode optical fiber with a core diameter in the range of 3 µm to 5 µm, a lens, and a focus adjustment gear for changing the distance between one end of the optical fiber and the lens; a housing, which includes: a first and a second deflection mirror, wherein the respective mirror surfaces of the deflection mirrors have a diameter of at least 10 mm, and a second port for attaching the XY deflection unit to a microscope; an adjustable connecting element, wherein the tube is connected to the housing by means of the adjustable connecting element, the connecting element being designed to adjust both a tilt and a transverse displacement of the tube relative to the housing;and a drive unit for rotating the deflecting mirrors about an axis each, in order to direct the laser light to a desired location in a sample on the microscope, wherein the lens is designed to direct laser light emerging from the end of the single-mode optical fiber onto the deflecting mirrors and the deflecting mirrors are designed to direct the laser light into the microscope, wherein in a first position of the focus adjustment gear the XY deflection unit is in a first operating mode in which the lens is designed to spread the laser light emerging from the end of the single-mode optical fiber into a parallel beam of at least 7 mm in diameter, and wherein in a second position of the focus adjustment gear the XY deflection unit is in a second operating mode in which the lens is designed to focus the laser light emerging from the end of the single-mode optical fiber into a focused beam.

This application relates to an agricultural laser system intended to extend, supplement, or replace the functions performed by conventional tools for tasks such as pruning, weeding, cutting, drying, and photostimulation. The system employs one or more lasers and includes a power module (1-A), a control module (1-B), a compressed gas and / or ventilation module (1-C), a temperature control module (1-D), a power distribution module (1-E), a laser module (2-A), a constraint and laser beam guide module (2-B), and a positioning wheel (3). Advantages of this system include reduced size and weight, the ability to move at relatively high speeds, low fuel consumption and operating costs, the ability to operate in a positive pressure environment to prevent damage to optical components or along the laser beam path, or operation outside of a positive pressure environment, modularity, and adaptability to crops of various sizes.

A mobile removal device (1) is provided, designed to irradiate an obstacle (P) capable of hindering plant growth with a laser beam (L). The mobile removal device (1) comprises a camera (5), a controller (6), and a guide section (4) for the laser beam (L). The guide section (4) includes a reflector (41, 42) for the laser beam (L). The controller (6) moves the camera (5) and / or the reflector (41, 42) to switch between an interference state and an interference-free state, wherein the interference state is a state in which the reflector (41, 42) is located within an image acquisition area of ​​the camera (5), and the interference-free state is a state in which the reflector (41, 42) does not interfere with the detection of the obstacle (P) based on the image acquired by the camera (5).The control unit (6) irradiates the obstruction (P) with the laser beam (L) in the interference state and detects the obstruction (P) in the interference-free state based on the captured image.

A laser system includes a collimator configured to output a collimated laser beam, a support member to which the collimator is mounted, and a linear rail along which the support member is movable in a first dimension such that the collimator, mounted to the support member, and the collimated laser beam, outputted from the collimator, are movable in the first dimension. The laser system further includes a lens positioned downstream of the collimator and configured to direct the collimated laser beam to a target location on a specimen.

In a method for laser processing of a workpiece (2) by means of at least one laser beam (3), particularly for laser cutting, the at least one laser beam is guided in a multi-core optical fiber (5) in a direction toward the workpiece (2), the multi-core optical fiber having a plurality of, particularly at least three, fiber cores (6) arranged in parallel along a straight line (A), the number of fiber cores (6) into which the at least one laser beam (3) is coupled and / or the distribution of the laser power of the at least one laser beam (3) to the fiber cores (6) is determined according to the workpiece characteristics or processing parameters according to the invention.

A method for machining a workpiece to obtain a part having a desired geometry by a laser beam emitted by a laser head integrated in a machine tool, wherein the machine tool includes a laser source for emitting a laser beam, and the laser head includes an optical system for directing the laser beam onto the workpiece, wherein the optical system includes a plurality of mirrors for reflecting the laser beam emitted by the laser source, and a focal lens for passing through the reflected laser beam and focusing the laser beam to an ablation position on the workpiece to ablate the material at this position.

A mobile removal device (1) is provided, designed to irradiate an obstacle (P) capable of hindering plant growth with a laser beam (L). The mobile removal device (1) comprises a camera (5), a laser oscillator (3), a control unit (6), and a guide section (4). The laser oscillator (3) is designed to emit a laser beam (L). The control unit (6) is designed to detect the obstacle (P) on the ground based on an image captured by the camera (5) and to irradiate the obstacle (P) with the laser beam (L). The guide section (4) is designed to guide the laser beam (L) emitted by the laser oscillator (3). The guide section (4) also includes a half-mirror (41). The camera (5) is designed to detect the ground through the half-mirror (41).

A LIDAR system includes a static monolithic LIDAR transceiver, a collimating optic, and a first rotatable wedge prism. The static monolithic LIDAR transceiver is configured to transmit a laser beam and receive reflected laser light from a first target object. The collimating optic is configured to narrow the transmitted laser beam to produce a collimated laser beam. The first rotatable wedge prism is configured to steer the collimated laser beam in a direction of the first target object based on the first rotatable wedge prism being in a first position.

A device for manipulating an inner surface of an object comprises a laser beam directing device for directing a laser beam onto the inner surface of the object to manipulate the inner surface of the object and thereby provide structural changes to, remove a material from and / or add material to said inner surface of the object at the location the laser beam directing device directing said laser beam. The device comprises also a moving device configured to move the laser beam directing device inside the object thereby manipulating the inner surface of the object in the direction of the longitudinal axis. The object may be e.g. an elongated cylindrical object having a longitudinal axis essentially parallel with the inner surface of the object

The invention discloses a local vacuum laser welding device and method for batteries, which are used for laser welding of battery connecting pieces and comprise a laser beam guiding assembly. The laser beam guiding assembly comprises a connecting base and a cone part, a sealing protection lens is arranged in the connecting base, the cone part is connected with the connecting base, a laser beam guiding conical cavity is formed in the cone part, and the sealing protection lens is used for forming a sealing welding space between the sealing protection lens and a welding area during welding. The minimum diameter end of the conical part is a laser beam discharge end, a plurality of through holes communicated with the laser beam guiding conical cavity are formed in the wall face of the conical part in the radial direction, and the through holes are connected to a vacuumizing pipe. Vacuum environment laser welding is adopted, the weld joint can be oxidized, the air hole defect rate is remarkably reduced, the weld joint strength and consistency are improved, and the welding quality is guaranteed; no shielding gas is needed, and production cost is reduced.

A light source (1), comprising: an excitation light source (10) and a wavelength conversion apparatus (20). The excitation light source (10) comprises a housing (110), a laser chip (120), and a light beam guiding element (130). The housing (110) forms a packaging cavity (140). The packaging cavity (140) is provided with a light outlet (150). The laser chip (120) and the light beam guiding element (130) are provided in the packaging cavity (140). The laser chip (120) is used for emitting a laser beam. The light beam guiding element (130) is used for guiding the laser beam towards the light outlet (150). The wavelength conversion apparatus (20) is spaced apart from the housing (110) and corresponds to the light outlet (150). The wavelength conversion apparatus (20) and the excitation light source (10) are separately arranged, and the housing (110) of the excitation light source (10) and the wavelength conversion apparatus (20) are spaced apart, so that the wavelength conversion apparatus (20) can be easily maintained and replaced, so as to avoid waste by discarding the entire light source (1).

A cleaning system for cleaning an optical element of a vacuumed space of the charged particle evaluation system of a charged particle evaluation system, the cleaning system includes (a) an ozone supply system configured to provide a cleaning-related flow of ozone to the vacuumed space during a cleaning session; and (b) a laser beam optics configured to (i) generate a laser beam outside the vacuumed space, and (ii) direct the laser beam towards the cleaning-related flow of ozone thereby breaking the cleaning-related flow of ozone to provide cleaning elements for cleaning the optical element.