Patent ID: 11939253
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 9:
10. A multiple glazed unit, comprising:
a first glass pane and a second glass pane, wherein at least one of the first glass pane or the second glass pane is shaped by:
heating the at least one of the first glass pane or the second glass pane;
one-dimensionally bending the at least one of the first glass pane or the second glass pane until the at least one of the first glass pane or the second glass pane has reached a shape that corresponds to a predefined target contour, wherein at least one exterior force is exerted on the at least one of the first glass pane or the second glass pane to cause the one-dimensional bending of the at least one of the first glass pane or the second glass pane, wherein the at least one exterior force is at least one of: a weight force caused by a weight of the at least one of the first glass pane or the second glass pane, a force that is transferred by a support on which the at least one of the first glass pane or the second glass pane rests to a surface region of the at least one of the first glass pane or the second glass pane which rests on the support, a force that is transferred at an edge of the at least one of the first glass pane or the second glass pane into the at least one of the first glass pane or the second glass pane by a mount into which the edge of the at least one of the first glass pane or the second glass pane is clamped, or a pressure force transferred by one or more pressure strips to a surface of the at least one of the first glass pane or the second glass pane; and
changing a local curvature of the at least one of the first glass pane or the second glass pane over time, wherein the changing of the local curvature is controlled such that the surface of the at least one of the first glass pane or the second glass pane concurrently achieves the predefined target contour at all points of the surface that do not remain static, by setting a temperature, and thus a viscosity, of the at least one of the first glass pane or the second glass pane during the one-dimensional bending of the at least one of the first glass pane or the second glass pane so as not to be constant as a function of location, wherein a curvature is imparted to an inner section of the at least one of the first glass pane or the second glass pane, the inner section of the at least one of the first glass pane or the second glass pane being disposed between a first exterior section and a second exterior section, wherein no curvature is imparted to the first and second exterior sections of the at least one of the first glass pane or the second glass pane, and the temperature is maintained below a deformation temperature in the first and second exterior sections, wherein, in the inner section, a temperature of the at least one of the first glass pane or the second glass pane is varied locally along a first extension direction of the at least one of the first glass pane or the second glass pane as a function of location, and is set so as to be constant in a second extension direction extending orthogonally with respect to the first extension direction as a function of location, so that two or more strip-shaped regions having differing temperatures are present in the inner section, wherein the two or more strip-shaped regions in the inner section are heated toward target temperatures that spatially increase steadily from one strip-shaped region to another strip-shaped region, a first strip-shaped region which is located closest to the first exterior section heated to a lowest target temperature among the target temperatures in the at least two strip-shaped regions, and a last strip-shaped region of the two or more strip-shaped regions, which is located closest to the second exterior section, being heated to a highest target temperature among the temperatures in the at least two strip-shaped regions.