Limo Patentverwaltung Gmbh & Co Kg

Hentze-Lissotschenko Patentverwaltungs Gmbh Co. Kg

Focuslight Technologies Inc.

Limo Gmbh

Aleksei Mikhailov

Vitalij Lissotschenko

Iouri Mikliaev

Maxim Darsht

Yury Kolotushkin

Chung-En Zah

Wieland Hill

Dirk Hauschild

Nikolai Jeremin

Yury Kolutushkin

Maxim Darscht

This disclosure relates to a laser device. The laser device has laser diodes arranged at least partially side by side in a first direction. In operation of the laser device, light emanates from the laser diodes and couples into an optical fiber. The laser device also has an optical device, during operation of the laser device, that combines the light so that the light can be coupled at least partially together into the optical fiber. The beam parameter product of the laser diodes with respect to the direction in which the laser diodes are arranged next to one another is greater than the beam parameter product of the optical fiber.

Laser device

A device () for applying light () to an inner surface () of a cylinder (), comprising a homogenizer (), into which light () can enter and from which the light () can exit, wherein the homogenizer () has a cylindrical internal surface (), on which the light () can be reflected after entering and before exiting, and also comprising ways for introducing light () into the homogenizing means (), and focusing arrangements, which can focus light () exiting from the homogenizer () onto the inner surface () of the cylinder () to which light () is to be applied.

Device for applying light to an inner surface of a cylinder and beam transformation device for such a device

A device for applying laser radiation to an at least partially reflective or transparent region or a workpiece disposed in a working area, with a laser light source for generating the laser radiation and optics for influencing the laser radiation, such that the radiation is transferred into the working area, wherein the optics comprise at least one mirror that can reflect a part of the laser radiation reflected in the working area or a part of the laser radiation having passed through the working area, such that said part of the laser radiation is at least partially fed hack into the working area.

Device for applying laser radiation and device for reproducing a linear light distribution

The invention relates to a device for converting laser radiation () into laser radiation having an M profile, comprising separating means (), which can separate the laser radiation () into at least two partial beams () which, at least in some sections or partially, move in different directions or are arranged offset from one another, and optics means (), which can introduce the at least two partial beams () in a working plane and/or can, at least in some sections, superimpose the at least two partial beams () in the working plane, wherein the separating means () comprise a lens array () having at least two lenses ().

Device for converting laser radiation into laser radiation having an M profile

An illumination apparatus produces a linear intensity distribution. The illumination apparatus contains laser light sources arranged in a number N of rows with in each case a number M of laser light sources which are arranged one next to the other, and emit laser light in a first propagation direction. A number of beam-deflection devices are arranged behind the laser light sources in the first propagation direction and deflect the laser light emitted by the laser light sources into a second propagation direction to a working plane. A beam-merging device is arranged behind the beam-deflection devices in the second propagation direction such that it merges the individual laser beam bundles of the laser light sources into the linear intensity distribution, with adjacent rows being arranged in a first direction perpendicular to first and second emission directions and also offset with respect to one another in the first propagation direction.

Laser apparatus for generating a line-shaped intensity distribution in a working plane

A device for producing laser radiation includes a homogenizer device which can separately homogenize a plurality of groups of partial beams of laser radiation in such a way that each group of partial beams proceeding from the homogenizer device can produce a line-shaped intensity distribution in a work plane, with the distribution having flanks which drop steeply at the line ends. The device further includes a superposition device for superpositioning the groups of partial beams in such a way that a line-shaped or linear intensity distribution having a length longer than the length of each of the line-shaped intensity distributions of the groups of partial beams can be produced in a work plane, wherein the superposition device includes a lens array having a plurality of lenses.

Arrangement for producing laser radiation, and laser device comprising such an arrangement

A device for homogenizing laser radiation contains a plurality of mirror elements which are arranged offset with respect to one another and at which the laser radiation to be homogenized can be reflected in such a way that it is split into a plurality of partial beams corresponding to the number of mirror elements. The partial beams have a path difference with respect to one another as a result of the reflection. The device further has a plurality of lens elements, each of which is respectively assigned to one of the mirror elements in such a way that a respective one of the partial beams can pass through one of the lens elements. A distance between each of the mirror elements and the lens elements assigned thereto is equal to the focal length of the respective lens element.

Device for homogenizing laser radiation

A laser configuration for machining a workpiece includes a plurality of laser light sources for introducing a laser radiation into a predeterminable working area. Some or all of the laser light sources are disposed on an arc of a circle.

Laser configuration

A device for beam shaping is particularly suited for producing a linear intensity distribution in a working plane. The device includes a laser light source, which can emit a multi-mode laser radiation. The beam quality factor of the radiation with regard to a first direction perpendicular to the propagation direction of the laser radiation is greater than 1 and also the beam quality factor with regard to a second direction perpendicular to the propagation direction is greater than 1. The device further includes a beam transformation assembly, which are arranged in the device in such a way that they can transform the laser radiation or partial beams of the laser radiation in such a way that the beam quality factor with regard to the first direction is increased and that the beam quality factor with regard to the second direction is reduced.

Device for beam shaping

A device for homogenizing light contains at least one optically functional surface through which light to be homogenized can pass and a plurality of concave and convex cylindrical lenses which are disposed in an alternating fashion one next to the other on the at least one optically functional surface. The device further has at least one first embodiment and at least one second embodiment, different from the at least one first embodiment, of transitions between the concave and the convex cylindrical lenses. Wherein the transitions between the concave and the convex cylindrical lenses are configured such that partial beams of the light to be homogenized, which have passed through different embodiments of the transitions between the concave and the convex cylindrical lenses, have an optical path difference with respect to one another, which contributes to the reduction of interference effects in the homogenized light.

Device for homogenizing light

A method and device for influencing light, include a first array of lens systems through which the light to be influenced can at least partially pass. A first phase-modifying array modulates the phases of the light which has passed through the individual lens systems of the first array. A second array of lens systems is provided through which the light phase-modified by the phase modifiers can at least partially pass. The second array of lens systems causes a plurality of local intensity maxima of the light to be created in the propagation direction of the light in the region of the second array of lens systems. A first lens system is disposed between the first array of lens systems and the second array of lens systems and a second lens system is disposed between the first lens system and the second array of lens systems. The first phase-modifying array is disposed between the first and second lens systems.

Method and device for influencing light

A device for altering an intensity distribution of a laser radiation field contains two substrates with differing refractive indices and with two opposed, mutually corresponding optical functional boundary surfaces, which are at least partly curved. The laser radiation field for altering can pass serially through the optical functional boundary surfaces, whereby a difference in the refractive indices of the first and second substrate is less than 0.1 and the cavity, between the first optical functional boundary surface and the second optical functional boundary surface is embodied such that the laser radiation, on propagation from the first substrate into the second substrate, is essentially subjected to one refraction on the basis of the difference in the refractive indices of the first and second substrate.

Device and method for varying an electromagnetic radiation field in the optical spectral region, particular in a laser radiation field

The invention relates to a semiconductor laser device, including a semiconductor laser element, or a number of individual lasers mounted parallel to each other, with a number of output surfaces, from which laser light can escape, having a treater divergence in a first direction (Y) than in a second direction parallel to the above and at least one reflecting means, at a distance from the output surfaces, outside the semiconductor laser element or the individual laser, with at least one reflective surface which reflects at least a part of the laser light escaping from the semiconductor laser element or the individual lasers through the output surfaces back into the semiconductor laser element or the individual lasers, such that the mode spectrum of the semiconductor laser element or the individual lasers is influenced. The at least one reflective surface of the reflecting means has a concave curve.

Semiconductor laser device

A device for the simultaneous welding of work pieces and containing a plurality of laser light sources. The laser light sources are positioned on at least one circle in such a manner that the partial beams emitted by the laser light sources produce at least one region that lies radially further inwards. The region, in some areas, has a substantially constant luminosity and the work pieces are introduced into the region.

Apparatus for simultaneous laser welding

Modulation device for laser radiation, having at least one modulation means which can change at least in part the laser radiation which passes through the modulation device, the modulation device having splitter means which can split the laser radiation into at least two component beams of radiation, the device furthermore in the direction of beam propagation downstream of the beam splitter means having beam combining means which can recombine at least two of the component beams of radiation, and at least one modulation means being located between the beam splitter means and beam combining means such that at least one of the component beams can be changed by at least one modulation means such that the laser radiation which has been combined by the beam combining means or in the area of the beam combining means at least in a given area of space has the desired modulation as a result of the interference of at least two component beams.

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Dortmund, Germany

Aleksei Mikhailov