Abstract: An optical element for a display device that can be placed on the head of a user and generate an image as a virtual image. The optical element having a first part, which comprises an optically effective structure, and a second part connected to one another by an adhesive composition comprising a ultra material. The first part material comprises one or more cycloolefin polymers, the first and third material are different from one another, and the second part material and third material in each case comprise at least one organic polymer. The refractive index differences for at least one wavelength between 380 nm and 800 am between the first and the second material and between the second and the third material are in each case ?0.02. The method of producing the optical element and the display device comprising the optical element are also provided.

Abstract: A spectacle lens for a display device may include a front side, a rear side, a coupling-in section and a coupling-out section. The coupling-out section includes at least two reflective deflecting surfaces arranged next to each other. The spectacle lens guides light bundles of pixels of the generated image to the coupling-out section in the spectacle lens and couples them out of the spectacle lens through the rear side. The spectacle lens includes a main part with the front and rear side, in which a recess extending from the rear side or from the front side to the surface structure is present, into which an insert element is inserted, the first end of which facing the surface structure is formed complementary to the surface structure, wherein the reflective deflecting surfaces lie between the surface structure of the main part and the first end of the insert element.

Abstract: An optical element includes a reflective Fresnel element for deflecting light bundles which are incident on the Fresnel element along a direction of incidence, into a direction of emergence. The Fresnel element includes a plurality of reflective facets arranged next to each other, which are formed curved, and in each case, comprise a first reflective section and an adjoining second reflective section. The reflectivity of the first reflective section is greater than the reflectivity of the second reflective section. The second reflective section of a first reflective facet lies in front of the first reflective section of the directly neighboring reflective facet, seen in the direction of incidence, with the result that the portion of the incident light bundle which is transmitted from the second reflective section of the first reflective facet, strikes the first reflective section of the directly neighboring reflective facet, in order to be deflected.

Abstract: Disclosed is an image generator with several pixels, from which light bundles are emitted for generating an image, a control unit for controlling the image generator and an imaging optical system which comprises a light guiding element with a front side and a rear side, which light guiding element has an input grating formed on the front or rear side and an output grating formed on the front or rear side. The light bundles are input into the light guiding element by means of diffraction at the input grating, guided in the light guiding element by means of total internal reflection up to the output grating and output by means of diffraction at the output grating such that a user can perceive the generated image.

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 device for detecting the geometrical shape of measurement objects with a computer, a 3D sensor and an object carrier for fixing the measurement object. The computer combines the measurements recorded by a 3D sensor. The image registration is improved by using an areally operating 3D sensor. An adjusting device is used to move the measurement object rather than the 3D sensor. The object carrier is adjustable in a manually guided manner about a plurality of linear axes and/or rotation axes by the adjusting device with position transmitters that forward their positions to the computer in the event of a measurement. The computer is set up for calculating, with the aid of suitable software, the position of the measurement object from the positions of the position transmitters and the positions of the axes relative to the 3D sensor.

Abstract: The invention relates to a device for detecting the geometrical shape of measurement objects (16) with a computer, a 3D sensor (7) and an object carrier (17) for fixing the measurement object (16), wherein the computer is set up for combining, with the aid of suitable software, the measurements recorded by the 3D sensor (7), wherein the 3D sensor (7) is an areally operating 3D sensor (7) and the object carrier (17) is adjustable in a manually guided manner about a plurality of linear axes and/or rotation axes (5) by means of an adjusting device (3), wherein the adjusting device (3) has position transmitters (4) that forward their positions to the computer in the event of a measurement, and wherein the computer is set up for calculating, with the aid of suitable software, the position of the measurement object (16) from the positions of the position transmitters (4) and the positions of the axes relative to the 3D sensor (7).