Abstract: A sealing device seals a first component part of a lithography apparatus vis-à-vis a multiplicity of second component parts of the lithography apparatus. The sealing device includes a multiplicity of sealing rings and a multiplicity of connection locations. The sealing rings are connected to one another with the aid of the connection locations.

Abstract: A sealing device seals a first component part of a lithography apparatus vis-à-vis a multiplicity of second component parts of the lithography apparatus. The sealing device includes a multiplicity of sealing rings and a multiplicity of connection locations. The sealing rings are connected to one another with the aid of the connection locations.

Abstract: The disclosure relates to an optical element configure to at least partial spatially resolve correction of a wavefront aberration of an optical system (e.g., a projection exposure apparatus for microlithography) to which optical radiation can be applied, as well as related systems and methods.

Abstract: The disclosure relates to an optical element configure to at least partial spatially resolve correction of a wavefront aberration of an optical system (e.g., a projection exposure apparatus for microlithography) to which optical radiation can be applied, as well as related systems and methods.

Abstract: The disclosure relates to an optical correction device with thermal actuators for influencing the temperature distribution in the optical correction device. The optical correction device is constructed from at least two partial elements which differ with regard to their ability to transport heat. Furthermore, the disclosure relates to methods for influencing the temperature distribution in an optical element.

Abstract: The disclosure relates to an optical element configure to at least partial spatially resolve correction of a wavefront aberration of an optical system (e.g., a projection exposure apparatus for microlithography) to which optical radiation can be applied, as well as related systems and methods.

Abstract: The disclosure relates to an optical correction device with thermal actuators for influencing the temperature distribution in the optical correction device. The optical correction device is constructed from at least two partial elements which differ with regard to their ability to transport heat. Furthermore, the disclosure relates to methods for influencing the temperature distribution in an optical element.

Abstract: In some embodiments, the disclosure relates to an optical assembly that includes an optical element and a structure element. A gap runs between the optical element and the structure element. A sealing element may be present to seal the gap. At least one liquid layer may be arranged between the structure element and/or the optical element, and the sealing element so that a relative displacement of the sealing element with respect to the structure element and/or the optical element is possible in the direction of the layer plane.

Abstract: The disclosure relates to an optical element configure to at least partial spatially resolve correction of a wavefront aberration of an optical system (e.g., a projection exposure apparatus for microlithography) to which optical radiation can be applied, as well as related systems and methods.

Abstract: In some embodiments, the disclosure relates to an optical assembly that includes an optical element and a structure element. A gap runs between the optical element and the structure element. A sealing element may be present to seal the gap. At least one liquid layer may be arranged between the structure element and/or the optical element, and the sealing element so that a relative displacement of the sealing element with respect to the structure element and/or the optical element is possible in the direction of the layer plane.

Abstract: An apparatus and a method are used for adapting a position of at least one spectacle lens of a spectacle relative to the position of a pupil of an eye of a person, the eye being associated to the spectacle lens. The apparatus comprises an illuminating device for an eye area of the person wearing a spectacle frame that is not yet fitted with lenses. Further, at least one camera for generating an image of the eye area is provided. The position of the pupil within the image is marked. The illuminating device has at least one light source operating within a wavelength range the light of which being reflected by the retina of the eye at a high ratio of reflection. The camera in its sensitivity is optimized to the wavelength of the light emitted by the light source.