Alltec Angewandte Laserlicht Technologie Gmbh

Texas Instruments Corporation

Alltec Angewandte Laserlight Technologie Gmbh

Videojet Technologies Inc.

Videojet Systems International, Inc.

Alltec Angewandte Laserlicht Technologie Gesellschaft MIT Beschrankter Haftung

Daniel Joseph Ryan

Peter Joerg Kueckendahl

Bernard J Richard

Kevin L Armbruster

Brad D Gilmartin

Gary A Frazier

Oren B Kesler

Charles M Rhoads

Richard G Hoffman, Ii

John Edwin Jackson

Carl J Sarro

Tom Pienkowski

Brian L Peterson

Peter Jörg Kueckendahl

Bernhard J Richard

Peter L Kueckendahl

A laser marking system comprises at least one controller to control an array of optical devices, between a laser source and a scan head. The array applies a selected pattern of portions of the received spatial profile of the laser beam to the substrate to achieve a second intensity different from the first intensity of laser beam at a rate of power deposition relative to a rate of thermal diffusion in the substrate for a predetermined time interval to thermally heat locations of the substrate with the selected pattern of the portions. The second intensity effectuates carbonization of materials of the substrate to create a mark without ablation.

System and method for laser marking substrates

The invention relates to a marking apparatus for marking an object with laser light, which apparatus comprises at least one gas laser for emitting at least one laser beam for marking the object. The at least one gas laser comprises a plurality of resonator tubes () for receiving a laser gas, a plurality of heat dissipaters () for dissipating heat from the resonator tubes () is provided, each resonator tube () is thermally connected to one of the heat dissipaters (), and each heat dissipater () comprises microchannels for receiving a cooling fluid.

Marking apparatus with at least one gas laser and heat dissipator

Laser device comprising at least two gas laser units (), stacked in layers, each laser unit comprising a plurality of resonator tubes (), the resonator tubes being in fluidic communication with each other and forming a common tubular space, connecting elements () for connecting adjacent resonator tubes so as to form a loop, mirrors () arranged in the connecting elements for reflecting the laser light between the resonator tubes, a rear mirror () and a partially reflecting output coupler () for coupling out a laser beam. In each laser unit an integrated output flange () comprises the rear mirror, the partially reflecting output coupler and an output mirror () which deflects the laser beam passing through the output coupler to a scanning device () located in the central space () surrounded by the resonator tubes. The invention also relates to a method for marking an object.

Laser device and method for marking an object

The invention relates to a marking apparatus () for marking an object with laser light, comprising a plurality of lasers (), in particular gas lasers (), and a control unit for individually activating each of the lasers () to emit a laser beam according to a sign to be marked. A deflection device () is provided by which at least two laser beams are combined on a common spot.

Marking apparatus with a plurality of lasers and a combining deflection device

The invention relates to a marking apparatus () for marking an object with laser light, comprising a plurality of gas lasers () and a control unit for individually activating each of the gas lasers () to emit a laser beam according to a sign to be marked. The gas lasers () are stacked such that the laser beams emitted by the gas lasers () form an array of laser beams, in particular a linear array with parallel laser beams, each gas laser (-) comprises laser tubes () that at least partially surround an inner area (). The apparatus () further comprises beam-delivery means () for directing the array of laser beams into the inner area () and a set of deflection means () for rearranging the array of laser beams into a desired array of laser beams. The set of deflection means () is arranged in the inner area () and comprises at least one deflection means () per laser beam, in particular at least one mapping mirror () or one optical waveguide per laser beam. Each deflection means () is individually adjustable in its deflection direction and/or individually shiftable.

Marking apparatus with a plurality of gas lasers with resonator tubes and individually adjustable deflection means

The invention relates to a marking apparatus for marking an object with laser light, comprising a plurality of lasers and a control unit for individually activating each of the lasers to emit a laser beam () according to a sign to be marked. A set of deflection means () for rearranging the laser beams () into a desired array of laser beams () is provided, the set of deflection means () comprises at least two deflection means (--) per laser beam (), in particular at least two mapping mirrors (--) or at least one optical waveguide and one lens per laser beam (-), and each deflection means (--) is individually adjustable in its deflection direction and/or individually shiftable.

Marking apparatus with a plurality of lasers and individually adjustable sets of deflection means

The invention relates to a marking apparatus for marking an object with laser light, comprising a plurality of lasers and a control unit for individually activating each of the lasers to emit a laser beam (-) according to a sign to be marked. A set of deflection means () for directing the laser beams (-) toward the object to be marked is provided, a set of telescopic means () comprising at least one telescopic means (-) per laser beam (-) is provided, and each telescopic means (-) is adjustable for individually setting a focal length of the respective laser beam (-).

Marking apparatus with a plurality of lasers, deflection means, and telescopic means for each laser beam

The invention relates to a sensor apparatus for detecting an object comprising a sensor head having a plurality of receiving spaces for individual sensor devices and a driving mechanism for providing a relative movement of the object relative to the sensor head in an advance direction during a detecting operation. The receiving spaces are arranged in a plurality of rows and columns, such that an array of receiving spaces with a rectangular pattern of the receiving spaces is formed, and the array of receiving spaces is tilted with regard to the advance direction such that the rows extend in a transverse direction relative to the advance direction and the receiving spaces of a successive row of the rectangular pattern are offset with regard to the receiving spaces of a preceding row of the rectangular pattern in a direction perpendicular to the advance direction.

Sensor apparatus

An apparatus for marking an object includes a marking unit for marking the object with a laser beam, a transporting device for transporting the object and a device for determination of a position of the object by means of ultrasonic waves originating from the object. A pulsed laser beam is directed to the object to cause vibrations at a surface of the object, by which vibrations the object is excited to generate ultrasonic waves.

Device and method for determination of a position of an object by means of ultrasonic waves

The invention relates to a laser device () comprising at least one laser unit () for generating laser light, and cooling means () for cooling said laser unit, said cooling means including a channel arrangement () through which a cooling fluid is circulated for transferring heat away from the laser unit. The laser device is characterized in that a mounting member () for releasably holding a fluid container () is provided, the mounting member comprises a first connector element () for connecting to a second connector element () of the fluid container in a fluid tight manner, and the mounting member is connected with the channel arrangement. The invention further relates to a fluid container for cooling fluid for use in the laser device. The fluid container is designed as a cartridge () and comprises an information storage means () for storing information about the container and the cooling fluid filled in said fluid container.

Laser device with a laser unit and a fluid container for a cooling means of said laser

The invention relates to a monitoring device for monitoring marking elements of a marking head. The inventive device is characterized in that it comprises a detector for recording detected information on the marking elements, and a control and evaluation unit that is adapted to determine whether the marking elements carry out marking operations based on the detected information. The invention further relates to a method for monitoring marking elements of a marking head.

Monitoring device and method for monitoring marking elements of a marking head

The invention relates to a marking device for marking an object () with marking light. The marking device comprises a plurality of marking modules (-) for emitting marking light, and a base unit () to which the plurality of marking modules (-) is connected wherein the base unit () comprises a control unit () for controlling the plurality of marking modules (-). The plurality of marking modules (-) comprises at least a first marking module () and a second marking module () which employ different marking technologies.

Marking device for marking an object with marking light

The invention relates to a marking apparatus for marking an object comprising a marking head having a plurality of receiving spaces for individual marking devices, wherein the receiving spaces are arranged in a plurality of rows and columns, such that a two-dimensional array of receiving spaces is formed, and a driving mechanism for providing a relative movement of the object relative to the marking head in an advance direction during a marking operation. The marking head is rotatable about an axis extending transversely to the advance direction, at least one detector device is arranged downstream of the receiving spaces in the advance direction, and a control marking, which has been applied by at least one marking device arranged in one of the receiving spaces during the movement of the object relative to the marking head, is detectable by the at least one detector device at different angles of rotation of the marking head. The invention further relates to a method for operating a marking apparatus.

Marking apparatus and method for operating a marking apparatus

The invention relates to a method for applying a marking on an object, wherein the object is moved in an advance direction relative to a marking head comprising a plurality of marking devices and the marking is applied on the object by means of the plurality of marking devices during the relative movement between the object and the marking head. For applying the marking on a predetermined marking area relative to a transverse direction, which extends transversely to the advance direction, a position of the object in the transverse direction is determined and based on the determined position of the object in the transverse direction a first number of marking devices is deactivated and a second number of marking devices is activated, wherein the marking is applied on the object by the second number of marking devices. The invention also relates to a marking apparatus for applying a marking on an object.

Method for applying a marking on an object and marking apparatus

The invention refers to a laser device comprising a tubular space formed by at least two resonator tubes () for a gas to be excited, excitation means () for each of the at least two resonator tubes for exciting the gas in the resonator tube for generating laser light, a partially reflecting output coupler () for coupling out a laser beam, and at least one gas reservoir container () which forms a gas reservoir, the gas reservoir container being free of excitation means and in fluidic communication with the tubular space, wherein the gas reservoir container is arranged between the at least two resonator tubes and connected to the tubular space at two separate connecting portions ().

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Sycamore, IL, United States of America

Daniel Joseph Ryan