Abstract: Self-locking eyeglass system, comprising at least one locking element and at least one frame element, wherein the frame element additionally comprises a connection element, which is intended for connecting with a locking element, and wherein the frame element is non-interrupted in its external circumference, and wherein the connection element is provided on the inner side, wherein the self-locking eyeglass system additionally comprises two hinge elements, which each comprises an adapter element, which matches a recess in the frame element, wherein each hinge element has a connection element, which coincides with the frame element's connection element, when the hinge elements are mounted in the at least one frame element's recess, and wherein each hinge element is secured to the at least one frame element by a locking element, whereby a convenient, flexible and uncomplicated way to assemble, separate, replace and service a self-locking eyeglass system is achieved.

Abstract: Self-locking eyeglass system, comprising at least one locking element and at least one frame element, wherein the frame element additionally comprises a connection element, which is intended for connecting with a locking element, and wherein the frame element is non-interrupted in its external circumference, and wherein the connection element is provided on the inner side, wherein the self-locking eyeglass system additionally comprises two hinge elements, which each comprises an adapter element, which matches a recess in the frame element, wherein each hinge element has a connection element, which coincides with the frame element's connection element, when the hinge elements are mounted in the at least one frame element's recess, and wherein each hinge element is secured to the at least one frame element by a locking element, whereby a convenient, flexible and uncomplicated way to assemble, separate, replace and service a self-locking eyeglass system is achieved.

Abstract: A spectacle rod is provided, including a plate-shaped metal rod and a friction element located at an ear bend. In order to avoid inadvertent removal of the friction element from the metal rod, a protrusion and the recess are formed. The protrusion and recess include a first transverse protrusion at the outermost second end of the spectacle rod. This transverse protrusion, together with the spectacle rod, forms an outwardly open recess. This recess has a smaller cross-section at the opening than at a central part. Thereby, elastic compliant material from the friction element will be received in the recess. The elastic material will be compressed so that a clamping effect occurs, contributing to a retention which prevents accidental separation of the friction element and the metal rod.

Abstract: A hinge is provided for pivotally connecting a temple bar and the rims of eyeglass frame including: a first part with an upper flange where a first aperture provides a tight fit for a locking pin head section, and a lower flange provided with a recess for receiving the locking pin cylindrical body, a second part with a second aperture having a higher surface roughness than the locking pin cylindrical body, thereby having a higher surface friction between the bushing and the aperture than between bushing and the locking pin—a bushing with an inner opening, a locking pin having a head section and a cylindrical body The second part arranged with a bushing is inserted between the upper flange and the lower flange of the first part. The locking pin is inserted through the first aperture through the inner opening of the bushing and received in the recess.

Abstract: Self-locking eyeglass system, comprising at least one locking element and at least one frame element, wherein the frame element additionally comprises a connection element, which is intended for connecting with a locking element, and wherein the frame element is non-interrupted in its external circumference, and wherein the connection element is provided on the inner side, wherein the self-locking eyeglass system additionally comprises two hinge elements, which each comprises an adapter element, which matches a recess in the frame element, wherein each hinge element has a connection element, which coincides with the frame element's connection element, when the hinge elements are mounted in the at least one frame element's recess, and wherein each hinge element is secured to the at least one frame element by a locking element, whereby a convenient, flexible and uncomplicated way to assemble, separate, replace and service a self-locking eyeglass system is achieved.

Abstract: Spectacles with interchangeable eyeglass lenses (2), where the spectacles comprise a spectacles frame (1) and eyeglass lenses (2), where the eyeglass lenses comprise a mount (3) which is secured to an outer edge of the eyeglass lenses, and where at least one of the mount and the spectacles frame comprises a coupling element (8), which can couple together the mount (3) and the spectacles frame (1), thereby producing a spectacles frame in which the eyeglass lenses can be replaced as desired. Furthermore, the mount or the spectacles frame comprises an oblong recess (5) designed to receive a partial section (7) of the spectacles frame or a bulge on the mount. Said spectacles are suitable for use at work, bicycling in blustery weather, or skiing in harsh sunlight.

Abstract: Spectacles with interchangeable eyeglass lenses (2), where the spectacles comprise a spectacles frame (1) and eyeglass lenses (2), where the eyeglass lenses comprise a mount (3) which is secured to an outer edge of the eyeglass lenses, and where at least one of the mount and the spectacles frame comprises a coupling element (8), which can couple together the mount (3) and the spectacles frame (1), thereby producing a spectacles frame in which the eyeglass lenses can be replaced as desired. Furthermore, the mount or the spectacles frame comprises an oblong recess (5) designed to receive a partial section (7) of the spectacles frame or a bulge on the mount. Said spectacles are suitable for use at work, bicycling in blustery weather, or skiing in harsh sunlight.

Abstract: A playground system having a playground installation relating to one of a number of educational and/or entertainment themes, a handheld computer device, and a database of a number of digital applications with digital educational and/or entertainment content elements relating to one of the themes. The playground installation has an ID element identifiable by the computer device for identification of the theme of the playground installation. The computer device has an identifier for identification of the element and is configured for accessing the database and digital application relating to the theme of the playground installation such that a user can use the digital educational and/or entertainment content elements relating to the same theme as the theme of the playground installation. A method for providing an educational and/or entertainment context between a playground installation relating to one of a number of educational and/or entertainment themes and a handheld computer device is also provided.

Abstract: The invention relates to an interactive educational system comprising a playground installation and a handheld computer device, where the playground installation comprises a three-dimensional physical object relating to an educational theme, and wherein the computer device comprises a digital educational content element relating to the same educational theme. The digital educational content element comprises a digital representation of the physical object of the playground installation thereby allowing a user to relate the physical object to its corresponding digital representation such as to increase the users understanding of the educational theme. The playground installation may comprise an ID element identifiable by the computer device for identification of the educational theme of the playground installation.