Abstract: An imaging device includes at least one eyeglass lens to be worn in front of the eye and a display device arranged in the edge region of the eyeglass lens, said display device including an image generator and an imaging optics arranged between the image generator and the eyeglass lens. The image generator is the start point of an imaging beam path which generates the virtual image having an image distance on the basis of the output image and which penetrates into the eyeglass lens by means of the imaging optics via the edge region of the eyeglass lens. An outcoupling device for outcoupling the imaging beam path in the direction of the eye is provided in the eyeglass lens. The display device comprises a device for adjusting the image distance of the virtual image. The invention also relates to data eyeglasses comprising an imaging device.

Abstract: A spectacle lens for a display device can be fitted on the head of a user and generate an image. The front side and/or the rear side can be curved. A light guiding channel can guide-light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section and coupled out of the spectacle lens via the coupling-out section. The light guiding channel includes a first reflecting surface and a second reflecting surface spaced apart from the first reflecting surface, each of which extend in a direction from the coupling-in section to the coupling-out section. At least one of the two reflecting surfaces can be formed as a switchable layer which can be switched into a first and a second state. The reflectivity of the switchable layer in the first state is higher than in the second state.

Abstract: A first side of the outer shell of a spectacle lens faces away from the inner shell and forms the front side of the spectacle lens, and the first side of the inner shell faces away from the outer shell and forms the rear side of the spectacle lens. The outer shell includes the coupling-in section, the light guiding channel and the coupling-out section. The inner shell includes an opening which extends from the second side of the inner shell, which faces towards the outer shell, in the direction of the rear side and in which the light guiding channel sits. The coupling-out section lies next to the opening such that the light bundles coupled out by the coupling-out section enter the inner shell via the second side of the inner shell, run through the inner shell and leave the inner shell via the rear side.

Abstract: The invention relates to a device for optical examination of a specimen with a cryo-immersion objective, having a stative, to which the cryo-immersion objective is fixed, wherein the cryo-immersion objective has a plurality of optical components, in particular lenses, and wherein the cryo-immersion objective has an optical front component which is in contact during operation with a coolable immersion liquid, having a specimen carrier for a specimen to be examined, having means for providing a cooled immersion liquid between the optical front component and the specimen to be examined on or against the specimen carrier. The device is characterised in that insulating means are present for interrupting a heat transition between the stative and the optical front component.

Abstract: A spectacle lens for a display device can be fitted on the head of a user and generate an image. The spectacle lens includes a curved front and/or side, wherein a light guiding channel which is suitable for guiding light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section of the spectacle lens, in the spectacle lens to the coupling-out section to couple them out of the spectacle lens via the coupling-out section. The coupling-out section includes at least two deflecting surfaces arranged next to each other which reflect the light bundles in the direction of the rear side for the coupling out. Deflecting surfaces can be formed as a switchable layer which can be switched into a first and a second state, wherein the reflectivity of the switchable layers in the first state is higher than in the second state.

Abstract: An imaging optical system for a display device that can be fitted on the head of a user and generate an image, with an optical element including an entry surface, and a spectacle lens, which includes a coupling-in section and a coupling-out section spaced apart therefrom. The imaging optical system can guide the generated image fed to the optical element via the entry surface in the optical element, for coupling it from the latter into the spectacle lens, in which it is guided to the coupling-out section and coupled out via the coupling-out section to generate a virtual image. The optical element includes an entry surface, at least one reflecting surface, on which the generated image is reflected, and an exit surface. The entry surface, the at least one reflecting surface and/or the exit surface are formed curved, with the result that the optical element has an imaging property.

Abstract: An imaging optical system for a display device that can be fitted on the head of a user and generate an image, with an optical element, which includes an entry surface, and a spectacle lens, which includes a coupling-out section. The imaging optical system is configured to guide the generated image fed to the optical element via the entry surface in the optical element, and to couple it from the latter into the spectacle lens, in which it is guided to the coupling-out section and coupled out via the coupling-out section to generate a virtual image. The optical element includes, in addition to the entry surface, at least one reflecting surface, on which the generated image is reflected for guiding in the optical element, and in that the optical element and the spectacle lens are formed together as a one-piece optical part.

Abstract: A multifunction optical element including an image generating module that generates an image, and couples the image into a multifunction glass that has a coupling in area and a coupling out area. The image produced is coupled into the multifunction glass via the coupling in area, guided in the multifunction glass to the coupling in area, and coupled out via the coupling out area, in such a way that the user can perceive the coupled out image superimposed on the surroundings when the holding device is placed on the head of the user. The coupling out area has a Fresnel structure which receives light from the coupling-in-area via a folded beam path and couples the image out of the multifunction optical element. The coupling out element has an imaging property.

Abstract: A multifunction optical element including an image generating module that generates an image, and couples the image into a multifunction glass that has a coupling in area and a coupling out area. The image produced is coupled into the multifunction glass via the coupling in area, guided in the multifunction glass to the coupling in area, and coupled out via the coupling out area, in such a way that the user can perceive the coupled out image superimposed on the surroundings when the holding device is placed on the head of the user. The coupling out area has a Fresnel structure which receives light from the coupling-in-area via a folded beam path and couples the image out of the multifunction optical element. The coupling out element has an imaging property.

Abstract: A projection objective of a microlithographic projection exposure apparatus includes a wavefront correction device including a refractive optical element that has two opposite optical surfaces, through which projection light passes, and a circumferential rim surface extending between the two optical surfaces. A first and a second optical system are configured to direct first and second heating light to different portions of the rim surface such that at least a portion of the first and second heating light enters the refractive optical element. A temperature distribution caused by a partial absorption of the heating light results in a refractive index distribution inside the refractive optical element that corrects a wavefront error. At least the first optical system includes a focusing optical element that focuses the first heating light in a focal area such that the first heating light emerging from the focal area impinges on the rim surface.

Abstract: A projection device includes a first and a second tilting mirror matrix, each including a plurality of tilting mirrors. A cover glass covers the tilting mirrors. An imaging lens system includes a relay lens system which images the tilting mirrors of the first tilting mirror matrix onto the tilting mirrors of the second tilting mirror matrix. Thus light reflected by the tilting mirrors of the first tilting mirror matrix onto tilting mirrors of the second tilting mirror matrix, and a projection lens system, which projects light reflected by tilting mirrors of the second tilting mirror matrix, in order to produce an image, is provided. The imaging lens system further includes a correction element which corrects at least one image error caused by the light obliquely passing through the cover glasses.

Abstract: A projection device includes a first and a second tilting mirror matrix, each including a plurality of tilting mirrors. A cover glass covers the tilting mirrors. An imaging lens system includes a relay lens system which images the tilting mirrors of the first tilting mirror matrix onto the tilting mirrors of the second tilting mirror matrix. Thus light reflected by the tilting mirrors of the first tilting mirror matrix onto tilting mirrors of the second tilting mirror matrix, and a projection lens system, which projects light reflected by tilting mirrors of the second tilting mirror matrix, in order to produce an image, is provided. The imaging lens system further includes a correction element which corrects at least one image error caused by the light obliquely passing through the cover glasses.

Abstract: A display device includes a holding device that can be placed on the head of a user. An image-generating module and an imaging lens system can be secured on the holding device. The latter includes a spectacle lens with a curved front and a curved back. It projects the image generated when the holding device is placed on the head such that the user can perceive it superimposed on the surroundings. Light from the image-generating module is coupled into an optical channel in the spectacle lens. It is conducted in the optical channel to an exit section and coupled via the exit section out of the spectacle lens. The optical channel includes in the region of the front and back a Fresnel structure with a plurality of facets on which the light conducted in the optical channel is reflected, and which are aligned parallel to one another.

Abstract: A projection device includes a first and a second tilting mirror matrix, each including a plurality of tilting mirrors. A cover glass covers the tilting mirrors. An imaging lens system includes a relay lens system which images the tilting mirrors of the first tilting mirror matrix onto the tilting mirrors of the second tilting mirror matrix. Thus light reflected by the tilting mirrors of the first tilting mirror matrix onto tilting mirrors of the second tilting mirror matrix, and a projection lens system, which projects light reflected by tilting mirrors of the second tilting mirror matrix, in order to produce an image, is provided. The imaging lens system further includes a correction element which corrects at least one image error caused by the light obliquely passing through the cover glasses.

Abstract: A display device has a holding device wearable on a user's head and holding a multifunctional glass that comprises a first and second coupling-out section and a coupling-in section, an image generation module that generates and couples an image into the multifunctional glass through the coupling-in section to the first coupling-out section redirecting the image in the direction of the user such that the user can perceive the image in superimposition with the real environment, a control unit for the image generation module, and a detector which is connected to the control unit and which measures the intensity of ambient light coupled through the first coupling-out section to the second coupling-out section and coupled out of the multifunctional glass through the second coupling-out section. The control unit controls the brightness of the image of the image generation module, the brightness controlled according to the intensity measured by the detector.

Abstract: A multifunction optical element including an image generating module that generates an image, and couples the image into a multifunction glass that has a coupling in area and a coupling out area. The image produced is coupled into the multifunction glass via the coupling in area, guided in the multifunction glass to the coupling in area, and coupled out via the coupling out area, in such a way that the user can perceive the coupled out image superimposed on the surroundings when the holding device is placed on the head of the user. The coupling out area has a Fresnel structure which receives light from the coupling-in-area via a folded beam path and couples the image out of the multifunction optical element. The coupling out element has an imaging property.

Abstract: A multifunction optical element including an image generating module that generates an image, and couples the image into a multifunction glass that has a coupling in area and a coupling out area. The image produced is coupled into the multifunction glass via the coupling in area, guided in the multifunction glass to the coupling in area, and coupled out via the coupling out area, in such a way that the user can perceive the coupled out image superimposed on the surroundings when the holding device is placed on the head of the user. The coupling out area has a Fresnel structure which receives light from the coupling-in-area via a folded beam path and couples the image out of the multifunction optical element. The coupling out element has an imaging property.

Abstract: An optical observation instrument has two optical transmission channels for transmitting two partial ray bundles (9A, 9B). The optical observation instrument has a main objective (1) common to the optical transmission channels, an electronic image sensor (7) for sequentially recording the partial ray bundles (9A, 9B), an intermediate imaging optical system (3) between the main objective (1) and the image sensor (7) and common to the optical transmission channels, and a tilting mirror matrix (5) between the main objective (1) and the image sensor (7). The intermediate imaging optical system (3) is arranged so that the respective partial ray bundle (9A, 9B) is deflected toward the image sensor (7) and passes the intermediate imaging optical system (3) both on the way from the main objective (1) to the tilting mirror matrix (5) and on the way from the tilting mirror matrix (5) to the image sensor (7).

Abstract: A projection objective of a microlithographic projection exposure apparatus comprises a wavefront correction device comprising a refractive optical element that has two opposite optical surfaces, through which projection light passes, and a circumferential rim surface extending between the two optical surfaces. A first and a second optical system are configured to direct first and second heating light to different portions of the rim surface such that at least a portion of the first and second heating light enters the refractive optical element. A temperature distribution caused by a partial absorption of the heating light results in a refractive index distribution inside the refractive optical element that corrects a wavefront error. At least the first optical system comprises a focusing optical element that focuses the first heating light in a focal area such that the first heating light emerging from the focal area impinges on the rim surface.

Abstract: A display device including a holding device that can be placed on the head of a user, an image generating module fixed to the holding device and generating an image, and a multifunction glass that is fixed to the holding device and has a coupling in area and a coupling out area. The image produced is coupled into the multifunction glass via the coupling in area, guided in the multifunction glass to the coupling in area, and coupled out via the coupling out area, in such a way that the user can perceive the coupled out image superimposed on the surroundings when the holding device is placed on the head of the user. The coupling out area has a Fresnel structure which receives light from the coupling-in-area via a folded beam path and couples the image out of the multifunction optical element. The coupling out element has an imaging property.