Abstract: In an apparatus for selective laser melting and/or laser sintering with a mounting base, that has at least one chamber, wherein the at least one chamber is a building chamber and/or a powder reservoir chamber for a powder, the saving of powder results in an increase in the possible uses of the apparatus, in that the apparatus further comprises at least one fitting element, wherein in operation, the at least one fitting element is located in the at least one building chamber, wherein in a first configuration the at least one fitting element is vertically movable relative to the main body and in a second configuration the at least one fitting element is fixedly connected to the mounting base.

Abstract: In an apparatus for selective laser melting and/or laser sintering with a mounting base, that has at least one chamber, wherein the at least one chamber is a building chamber and/or a powder reservoir chamber for a powder, the saving of powder results in an increase in the possible uses of the apparatus, in that the apparatus further comprises at least one fitting element, wherein in operation, the at least one fitting element is located in the at least one building chamber, wherein in a first configuration the at least one fitting element is vertically movable relative to the main body and in a second configuration the at least one fitting element is fixedly connected to the mounting base.

Abstract: A 3D measurement of teeth occurs while exciting fluorescence in the volume of the teeth. To this end, use is made of suitable radiation which, as a result of the fluorescence, is therefore strongly absorbed. As a result of this, the problem of translucence when measuring teeth is significantly reduced.

Abstract: A 3D measurement of teeth occurs while exciting fluorescence in the volume of the teeth. To this end, use is made of suitable radiation which, as a result of the fluorescence, is therefore strongly absorbed. As a result of this, the problem of translucence when measuring teeth is significantly reduced.

Abstract: An apparatus and a method permit the 3D detection of specular objects which are transparent to visible light. The method operates on the basis of the principle of deflectometry with specific improvements.

Abstract: An apparatus and method for use in the field of orthodontia and dental prosthodontics for registering 3D measurement data of a jaw model having a lower jaw model and an upper jaw model in a cranial-referenced coordinate system. The method and apparatus establish a spatial relationship between a cranium and the measurement data of the jaw models obtained from optical scanners. This is implemented by determining the spatial relationship between a paraocclusal spoon or a bite fork and jaw joints using a computer aided registering system, and by determining the spatial relationship between the paraocclusal spoon or the bite fork and the jaw model which provides locatable structures whose spatial relationship to the paraocclusal spoon or the bite fork is known.

Abstract: A method teaches how to measure—even strongly curved—specular surfaces with an apparatus that measures a shape as well as local surface normals absolutely. This is achieved by the observation and evaluation of patterns that are reflected at the surface. The reflected patterns are observed from different directions. The evaluation is done by termination of those locations in space, where the surface normals that are observed from different directions, have at least deviations against each other.

Abstract: An apparatus and a method permit the 3D detection of specular objects which are transparent to visible light. The method operates on the basis of the principle of deflectometry with specific improvements.

Abstract: An apparatus and a method are presented which render possible the 3D acquisition of objects (4) with the aid of an optical 3D sensor from an angular range that is larger than that which is yielded by one view, in a short measuring time and without mechanical movement. This end is served by a specific mirror arrangement (3) in combination with a modification of the optical 3D sensor.

Abstract: A method teaches how to measure—even strongly curved—specular surfaces with an apparatus that measures a shape as well as local surface normals absolutely. This is achieved by the observation and evaluation of patterns that are reflected at the surface. The reflected patterns are observed from different directions. The evaluation is done by termination of those locations in space, where the surface normals that are observed from different directions, have at least deviations against each other.

Abstract: An apparatus for the generation of different given fringe-like light patterns in space is disclosed. The light patterns are predominantly used in optical metrology, for the three-dimensional acquisition of the shape of objects. Said light patterns are generated by astigmatic projection of a specially designed mask with sub-areas, the brightness of said sub-areas can be controlled, for example by implementing the mask as a liquid crystal light valve. The sub-areas are controlled in a way that by combination of bright and dark sub-areas, different sub-masks are formed. The astigmatic projection of any sub-mask generates one of the given fringe-like light patterns. In spite of the binary transparency of the sub-masks, continuously varying brightness can be achieved. All necessary sub-areas are located on the same area, interlaced such as in a mosaic work. On this area, any of the required sub-masks can be generated.