Concept Laser Gmbh

Cl Schutzrechtsverwaltungs Gmbh

Stephan Hunze

Fabian Zeulner

Jens Junge

Christian Dicken

Tobias Bokkes

Philipp Schumann

Marie-Christin Ebert

Tim Klaußner

Thomas Schulz

MariaTheresia Scherr

Boris Dr Eichenberg

An optical system may include a first optical assembly and a first scan field expansion assembly. The first optical assembly may include or may be configured as a first flat-field lens. The first flat-field lens may have a first nominal scan field with a first flat focal plane. The first scan field expansion assembly may include one or more first field-expanding optical elements configured to provide a first expanded scan field coinciding with the first flat focal plane. The first expanded scan field may have a cross-sectional width and/or area that exceeds a corresponding cross-sectional width and/or area of the first nominal scan field. A method of additively manufacturing a three-dimensional object may include directing a first energy beam through the first optical assembly, and directing the first energy beam through the first scan field expansion assembly.

Energy beam generation systems and optical systems with expanded scan fields

Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of at least one energy beam (), which apparatus () comprises an irradiation device () with at least one beam guiding element () on which the energy beam () is partially reflected, wherein a first beam part () extends between the beam guiding element () and a build plane () of the apparatus () and a second beam part () is transmitted through or scattered at the beam guiding element (), wherein a determination device () is provided that is adapted to determine at least one parameter of the second beam part ().

Apparatus for additively manufacturing three-dimensional objects

An apparatus for additively manufacturing three-dimensional objects formed of successive layerwise consolidation of layers of a build material which can be consolidated by an energy beam. The apparatus may include a determination device confirmed to determine at least one parameter of the energy beam for a specific build material, wherein the determination device comprises at least one determination base body arrangeable or arranged in a beam guiding plane, in particular a build plane; and a tempering unit confirmed to temper the determination base body. Determination devices, along with methods, are also provided for determining at least one parameter of an energy beam of an apparatus for additively manufacturing three-dimensional objects.

Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective consolidation of layers of a build material () which can be consolidated by means of an energy source (), which apparatus () comprises an optical unit () with at least one optical surface () arranged in a process chamber () of the apparatus (), wherein the apparatus () comprises at least one determination device () with at least one light source () and at least one determination unit () adapted to determine at least one radiation parameter of radiation () emitted from the light source () and reflected at the optical surface () of the optical unit (), wherein the determination device () is adapted to determine at least one condition information of the optical unit () based on the determined radiation parameter.

Apparatus for additively manufacturing three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, which apparatus comprises an irradiation device adapted to guide an energy beam across a build plane, wherein a calibration device is provided comprising a positioning unit, a determination unit and a calibration unit, preferably arranged in a process chamber of the apparatus, that is adapted to at least partially reflect the energy beam, wherein the irradiation device is adapted to guide the energy beam to the calibration unit for generating a reflected part of the energy beam, wherein the positioning unit is adapted to position the irradiation device dependent on at least one parameter of the reflected part of the energy beam determined via the determination unit.

Apparatus () for additively manufacturing of three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam (), wherein a measuring unit () is provided that is configured to generate information relating to a collimated part () of the energy beam () and information relating to a focused part () of the energy beam ().

Apparatus for additively manufacturing of three-dimensional objects

Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam () that is guided inside a process chamber () of the apparatus (), wherein a determination device () is provided that is arranged inside the process chamber () and adapted to determine at least one parameter of the energy beam (), preferably during an additive manufacturing process, in particular during a process step of the additive manufacturing process in which build material () is applied onto a build plane () of the apparatus ().

Growing community of inventors

Lichtenfels, Germany

Stephan Hunze