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.

Abstract: A relational database residing on a second computer, and is accessed by a user interface via a global information network such as the Internet. The relational database is accessed through four intermediate processing layers: an interaction layer, an application layer, a business object layer, and an information model layer, each located on a second computer, with the information model layer logically adjacent to the database, and the interaction layer logically adjacent to the user interface operating on the browser. The information model layer maintains a first relational tree of the information in the relational database. This relational tree appears as a plurality of entities in a mark up language (such as XML) to the business object layer and the information in the relational database is accessible via the relational tree.

Abstract: A system for transferring information between a user interface and a database over a global information network such as the Internet is provided. A plurality of user interfaces are located on a plurality of user computers. In this regard, the user interfaces are preferably implemented on a browser using a mark up language such as HTML. The database is a relational database residing on a second computer, and is accessed by the user interface via a global information network such as the Internet. The relational database is accessed through four intermediate processing layers: an interaction layer, an application layer, a business object layer, and an information model layer, each located on a second computer, with the information model layer logically adjacent to the database, and the interaction layer logically adjacent to the user interface operating on the browser. The information model layer maintains a first relational tree of the information in the relational database.

Abstract: A system includes a server operably connected to a database which maintainins a tree of information in the database. Each node in the tree constitutes a server side model. The system further includes a client arranged and constructed to communicate with the server over the communication network via a graphical user interface such as a browser. The browser is operable to access the database and download a mirror copy of at least a portion of the relational tree along with a web page form which contains fields for receiving and/or displaying information, and optionally a controller utility. Each node in the mirror copy constitutes a client side model. In accordance with the present invention, each field has associated therewith one of the client side models.

Abstract: A spectacle case (1) consists of two lateral elements (6) and an enveloping element (11) made of an elongated sheet of thin, resilient material having at its one end a section which is bent into cylinder sector form to constitute an end surface (5) of the case, a planar or slightly curved section which forms the bottom (8), a section which has been bent into cylinder sector form to constitute a second end surface (4), a planar or slightly curved section which forms the cover surface (10) and a section at the opposite end of the elongated sheet which has been bent into cylinder sector form to constitute a hooked locking means (9). The two lateral elements are permanently joined with those portions of the elongated sheet which constitute the bottom and the two end surfaces and brace these sections whereby they provide a solid bottom portion of the case. The unbraced portion forms a resilient cover (3) of the case.