Abstract: A device for detecting X-rays radiated out of a substrate surface, said device comprising at least one X-ray detector, a resolver grating and a modulator grating, said resolver grating with at least one opening facing towards said X-ray detector is arranged in front of said X-ray detector. Said modulator grating is provided between said resolver grating and said substrate at a predetermined distance from said resolver grating and said substrate, where said modulator grating having a plurality of openings in at least a first direction, wherein said x-rays from said surface is spatially modulated with said modulator grating and resolver grating.

Abstract: Various embodiments of the present invention relate to a method for welding a workpiece comprising the steps of: making a first weld at a first position on said workpiece with a high energy beam, deflecting the high energy beam with at least one deflection lens for making a second weld at a second position on said workpiece, focusing the high energy beam on said workpiece with at least one focusing lens, shaping the high energy beam on said workpiece with at least one astigmatism lens so that the shape of the high energy beam on said workpiece is longer in a direction parallel to a deflection direction of said high energy beam than in a direction perpendicular to said deflection direction of said high energy beam. The invention is also related to the use of an astigmatism lens and to a method for forming a three dimensional article.

Abstract: The invention concerns an apparatus (1) for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, said apparatus (1) comprising means for successive application of powder layers to a work table, and a radiation gun (3) for delivering said beam (4) of charged particles, wherein the inventive apparatus (1) comprises a powder-lifting detection device (10, 10 a, 10 b, 10 c, 10 d, 10 e) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5).

Abstract: The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, which method comprises the following steps: successive application of powder layers to a working area (5), and fusing together successive layers of said three-dimensional object (6) by successively irradiating the powdery layers with said beam (4).

Abstract: Patterns are written on workpieces, such as, glass sheets and/or plastic sheets used in, for example, electronic display devices such as LCDs. The workpiece may be larger than about 1500 mm may be used. An optical writing head with a plurality of writing units may be used. The workpiece and the writing head may be moved relative to one another to provide oblique writing.

Abstract: Devices and methods for manufacturing displays, solar panels and other devices using larger size workpieces are provided. The workpiece is rolled into a cylinder, thereby reducing the physical size by a factor of 3 in one dimension. The stages on which the workpieces are rolled have a cylindrical shape, which allows a more robust and/or compact movement of the glass, reduced machine weight. The workpieces are relatively thin, more flexible, and are rolled onto a cylinder with a diameter of about 1 meter.

Abstract: Patterns are written on workpieces, such as, glass sheets and/or plastic sheets used in, for example, electronic display devices such as LCDs. The workpiece may be larger than about 1500 mm may be used. An optical writing head with a plurality of writing units may be used. The workpiece and the writing head may be moved relative to one another to provide oblique writing.

Abstract: The present invention relates to an apparatus (100) for patterning a workpiece arranged at an image plane and sensitive to electromagnetic radiation, comprising a source emitting electromagnetic radiation onto an object plane and at least two spatial light modulators each comprising numerous of object pixels, adapted to receive said electromagnetic radiation at said object plane and to relay said electromagnetic radiation toward said workpiece, wherein said electromagnetic radiation is split into at least two beams, which beams will impinge on different spatial light modulators, by a beam splitting device arranged at an optical plane between said spatial light modulators and an illuminator pupil or a conjugate optical plane. The invention also relates to a method for patterning a workpiece with a plurality of spatial light modulators.

Abstract: Devices and methods for manufacturing displays, solar panels and other devices using larger size workpieces are provided. The workpiece is rolled into a cylinder, thereby reducing the physical size by a factor of 3 in one dimension. The stages on which the workpieces are rolled have a cylindrical shape, which allows a more robust and/or compact movement of the glass, reduced machine weight. The workpieces are relatively thin, more flexible, and are rolled onto a cylinder with a diameter of about 1 meter.

Abstract: Patterns are written on workpieces, such as, glass sheets and/or plastic sheets used in, for example, electronic display devices such as LCDs. The workpiece may be larger than about 1500 mm may be used. An optical writing head with a plurality of writing units may be used. The workpiece and the writing head may be moved relative to one another to provide oblique writing.

Abstract: The present invention relates to an apparatus (100) for patterning a workpiece arranged at an image plane and sensitive to electromagnetic radiation, comprising a source emitting electromagnetic radiation onto an object plane and at least two spatial light modulators each comprising numerous of object pixels, adapted to receive said electromagnetic radiation at said object plane and to relay said electromagnetic radiation toward said workpiece, wherein said electromagnetic radiation is split into at least two beams, which beams will impinge on different spatial light modulators, by a beam splitting device arranged at an optical plane between said spatial light modulators and an illuminator pupil or a conjugate optical plane. The invention also relates to a method for patterning a workpiece with a plurality of spatial light modulators.

Abstract: The present invention relates to a device for outcoupling of light in an external cavity laser, which external cavity laser comprises at least one light source, at least one wavelength selective feedback element, at least one polarization selective beam-splitting optical element, and at least one Faraday-rotator element.

Abstract: The invention relates to a device and method for tuning the wavelength of the light in an external cavity laser. The external cavity laser comprises an optically amplifying semiconductor chip, a first reflecting surface, an Anti-Reflection (AR) coated semiconductor chip facet, a diffraction grating on which at least part of the beam originating from the AR coated semiconductor chip facet is incident and diffracted back to the optically amplifying semiconductor chip, means for collimating the light emitted from the AR coated semiconductor chip facet towards the diffraction grating, and a movable part. By the movement of the moveable part, the wavelength of the light can be turned in the external cavity laser. The movable part of the external cavity laser exhibits a rotational movement relative to the optical axis of the external movement being actuated by an electrodynamic force generated within an integral section of the moveable part.

Abstract: The present invention relates to a device for outcoupling of light in an external cavity laser, which external cavity laser comprises at least one light emitting and/or amplifying element (300, 500, 600, 700, 800), at least one wavelength selective feedback element (340, 540, 640, 740, 840). The outcoupling device further comprises at least one polarization selective beam-splitting optical element (320, 520, 620, 720, 820), and at least one Faraday-rotator element (330, 530, 630, 730, 830).

Abstract: The invention relates to a device (300) for tuning the wavelength of the light in an external cavity laser. The external cavity laser comprises an optically amplifying semiconductor chip (310), a first reflecting surface (312), an Anti-Reflection (AR) coated semiconductor chip facet (314), a diffraction grating (330) on which at least part of the beam originating from the AR coated semiconductor chip facet (314) is incident and diffracted back to the optically amplifying semiconductor chip (310), means (320) for collimating the light emitted from the AR coated semiconductor chip facet (314) towards the diffraction grating (330), and a movable part (360) by means of the movement of this said part the wavelength of the light can be tuned in the external cavity laser.