Abstract:
The invention relates to a timber structural component with at least two timber layers in which at least one timber layer (10-10f) has at least one cut-out (24, 24') which, at least on one side and/or in regions, has a structure (12, 12') in which said structure can take the form of grooves. According to the invention, the timber layers run mutually diagonally, whereby the structure (12a, b, c) or grooving of the layers (10', 10'', 10''') preferably run uniformly diagonally to one another.
Abstract:
The invention relates to a timber structural component with at least two timber layers in which at least one timber layer (10-10f) has at least one cut-out (24, 24') which, at least on one side and/or in regions, has a structure (12, 12') in which said structure can take the form of grooves. According to the invention, the timber layers run mutually diagonally, whereby the structure (12a, b, c) or grooving of the layers (10', 10'', 10''') preferably run uniformly diagonally to one another.
Abstract:
A method of making a high-precision optical surface which may be used either as a Wolter-type segment in an X-ray mirror system or in a collector of a EUVL system or as a spherical, aspherical, or free form normal or grazing incidence mirror in an EUVL system is prepared by sagging a thin flat glass sheet onto a masterpiece, in particular a mandrel, made from a temperature-resistant material, such as an alumina based ceramic or a keatite glass ceramic. The glass sheet is polished to the desired surface roughness (14), is positioned to an upper surface of the masterpiece (16), and is heated (18) to effect sagging onto the upper surface of the masterpiece for generating a shaped body. Thereafter, the shaped body is cooled and removed from the masterpiece, is mounted within a holder (22), is inspected for deviations from the specification (24) preferably using interferometric measurements, and is corrected for defects (26), preferably using ion beam figuring.
Abstract:
The invention relates to a timber structural component with at least two timber layers in which at least one timber layer (10-10f) has at least one cut-out (24, 24') which, at least on one side and/or in regions, has a structure (12, 12') in which said structure can take the form of grooves. According to the invention, the timber layers run mutually diagonally, whereby the structure (12a, b, c) or grooving of the layers (10', 10'', 10''') preferably run uniformly diagonally to one another.
Abstract:
An optical component is suggested, comprising at least one optically effective optical element which heats up when irradiated with light, and at least one holding element for the at least one optical element for holding the at least one optical element in a carrier structure, wherein the at least one optical element is connected to the at least one holding element in heat conducting fashion, and wherein the at least one holding element is at least partially provided with an active cooling system for carrying off heat from the at least one optical element.
Abstract:
The invention relates to a collector for a projection printing installation, which is operated in a scanning mode along a scanning direction with a wavelength
Abstract:
A method of making a high-precision optical surface which may be used either as a Wolter-type segment in an X-ray mirror system or in a collector of a EUVL system or as a spherical, aspherical, or free form normal or grazing incidence mirror in an EUVL system is prepared by sagging a thin flat glass sheet onto a masterpiece, in particular a mandrel, made from a temperature-resistant material, such as an alumina based ceramic or a keatite glass ceramic. The glass sheet is polished to the desired surface roughness (14), is positioned to an upper surface of the masterpiece (16), and is heated (18) to effect sagging onto the upper surface of the masterpiece for generating a shaped body. Thereafter, the shaped body is cooled and removed from the masterpiece, is mounted within a holder (22), is inspected for deviations from the specification (24) preferably using interferometric measurements, and is corrected for defects (26), preferably using ion beam figuring.
Abstract:
An optical component is suggested, comprising at least one optically effective optical element (A1) which heats up when irradiated with light, and at least one holding element (B1) for the at least one optical element for holding the at least one optical element (A1) in a carrier structure, wherein the at least one optical element is connected to the at least one holding element in heat conducting fashion, and wherein the at least one holding element is at least partially provided with an active cooling system (B2) for carrying off heat from the at least one optical element.
Abstract:
Die Erfindung betrifft einen Kollektor für eine Projektionsbelichtungsanlage, die in einem Scan-Modus entlang einer Scanrichtung mit einer Wellenlänge ≤ 193 nm, bevorzugt ≤ 126 nm, besonders bevorzugt EUV-Wellenlängen betrieben wird, wobei der Kollektor Licht einer Lichtquelle objektseitig aufnimmt und einen Bereich in einer bildseitigen Ebene, die von einem lokalen Koordinatensystem aufgespannt wird, wobei die y-Richtung des lokalen Koordinatensystems parallel zur Scanrichtung und die x-Richtung senkrecht zur Scanrichtung ist, ausleuchtet, wobei der Kollektor aufweist: eine Vielzahl von rotationssymmetrischen Spiegelschalen, umfassend jeweils wenigstens ein erstes Spiegelsegment, umfassend eine erste optische Fläche, wobei die Spiegelschalen um eine gemeinsame Rotationsachse ineinander angeordnet sind; Befestigungseinrichtungen zum Befestigen der Vielzahl von rotationssymmetrischen Spiegelschalen, und die Befestigungseinrichtungen Stützspeichen aufweisen, die sich in radialer Richtung der rotationssymmetrischen Spiegelschalen erstrecken. Die Erfindung ist dadurch gekennzeichnet, dass die Stützspeichen derart angeordnet sind, dass, wenn sie in die bildseitige auszuleuchtende Ebene projiziert werden, gegenüber der y-Richtung des lokalen Koordinatensystems in der bildseitigen Ebene geneigt sind.