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| Number | Title | Issue Date |
| 6332827 | Apparatus for machining glass lenses The present invention relates to an apparatus for machining glass lenses, wherein said apparatus comprises the following members: a housing; a machining chamber located in said housing; a shaft for maintaining a glass lens and a machining device both arra... | 12/25/2001 |
| 6110029 | Template for the lens of a pair of glasses A template (1) intended for the lens of a pair of glasses (4), in which the template includes holes (14) for determining a drilling position for applying marks. The template (1) can be connected to a blocking member (10, 11) provided on the lens of the gl... | 08/29/2000 |
| 5993294 | Method and spectacle lens grinding machine for shape grinding the circumferential edge of spectacle lenses and optionally for subsequently grinding a facet In a method for shape grinding a circumferential edge of a spectacle lens, and optionally subsequently facet grinding, in a lens grinding machine that comprises a lens securing shaft and a grinding wheel moveable in a controlled manner relative to the len... | 11/30/1999 |
| 5989102 | Apparatus for facetting ophthalmic lenses The description relates to a device for facetting ophthalmic lenses with at least one facetting tool which can be engaged with a ophthalmic lens held in a clamp and with a control unit for the facetting tool in which the reference data for the radius r of... | 11/23/1999 |
| 5908348 | Method for CNC-controlled shape grinding of spectacle lenses A method for machining a spectacle lens includes the step of inputting shape data of a spectacle frame opening or shape data of a shaped disk into a computing unit of a CNC-controlled spectacle lens grinding machine. Personal optometric data of a patient ... | 06/01/1999 |
| 5630746 | Spectacle lens edge grinding machine A spectacle lens edge grinding machine includes a machine frame and at least one grinding wheel connected to the machine frame. A rotatable spectacle lens holding shaft is fastened to the machine frame. The spectacle lens holding shaft is at least radiall... | 05/20/1997 |
| 5615588 | Apparatus for processing the edge of ophthalmic lenses An apparatus for processing edges of ophthalmic lenses with a gripping device for the ophthalmic lens. The gripping device grips the ophthalmic lens in such a manner that the edge to be processed in accessible, with a turning the gripping device with the ... | 04/01/1997 |
| 5588899 | Apparatus for grinding spectacle lenses An apparatus for peripheral grinding of a lens has at least one CNC-control device for grinding of the lens blanks according to a selected contour of the lens to be produced from the lens blank. The CNC control device has at least one grinding wheel, at l... | 12/31/1996 |
| 5545075 | Process for the production of an edged opthalmic lens Disclosed is a process for the production of an edged ophthalmic lens wherein an ophthalmic lens which initially is finished on one side and not yet edged according to a prescribed disk shape, i.e. a so-called blank having only one finished effective surf... | 08/13/1996 |
| 5498200 | Device for parallex-free centering of a blank for a glass lens for spectacles and for providing markings and/or attaching a holder before inserting the blank into a grinding machine for blanks for glass lenses A device for parallax-free centering of an eyeglass lens blank and for application of markings and optionally a holder before insertion of the eyeglass lens blank into an eyeglass edge grinding machine has a stage for the eyeglass lens blank. An electric ... | 03/12/1996 |
| 5454194 | System for grinding the optical surfaces and/or the edges of eyeglass lenses System for grinding eyeglass lenses with at least one grinding disk, a rotatable holder for an eyeglass lens blank, a device to control the grinding process in accordance with pre-determined optical values and/or a predeterminable outline of a glass lens,... | 10/03/1995 |
| 5454748 | Process, block for sucker or a machine for grinding or machining the edge of eyeglass lenses and a process for grinding eyeglass lenses A process, a block or sucker, and an apparatus for machining the edge and optionally the optical surfaces of eyeglass lenses. The block or sucker is of circular shape and has a diameter which, at least in some areas, extends beyond the dimensions of the f... | 10/03/1995 |
| 5410843 | Process for finishing the edge of corrective lenses made of plastic An improved process for finishing the edge of corrective lenses made of thermoplastic material or of a mixture of thermoplastic and thermosetting plastic materials. This process includes the steps of dry pre-profiling and dry post-profiling the corrective... | 05/02/1995 |
| 5007977 | Method and apparatus for applying a strip to the planar contour-prepared edge of a rotating lens A method and apparatus for applying a strip to the planar contour-prepared edge of a lens. The beginning of an endless strip is connected to the edge of a lens. A transverse perforation is introduced into the strip at a distance from the strip beginning t... | 04/16/1991 |
| 4964239 | Machine for grinding the edges of a lens A machine for grinding the edges of a spectacle lens, including shaft halves for holding the lens therebetween, a grinding wheel for machining the periphery of the lens, a support for the template that is held by one of the shaft halves, and a measuring h... | 10/23/1990 |
| 4870785 | Lens holder for an apparatus for grinding the edges of a lens A lens holder for an apparatus for grinding the edges of a lens. The lens holder includes two coaxial, rotatable shaft halves having adjacent ends between which the lens is held. One of the shaft halves is axially shiftable to permit insertion, securing, ... | 10/03/1989 |
| 4841676 | Turning tool for machining the edges of plastic lenses A turning tool for machining the edges of plastic lenses in a machine for machining the edges of lenses. A grinding wheel is coaxially connected to a cutter in such a way that they both rotate together. The grinding wheel is provided with respective rough... | 06/27/1989 |
| 4841677 | Device for disengaging a suction mechanism from a lens A device for disengaging a suction mechanism from a lens. A housing is provided that has an upper supporting rim for a lens. The device also has a gripping member that is adapted to grasp the base of the suction mechanism in a forceps-like manner. The gri... | 06/27/1989 |
| 4837978 | Machine for grinding the edges of lenses A machine for grinding the edges of a lens via a set of different grinding wheels for rough and finish grinding of the lens. The machine includes a machine housing, a holding element mounted in the housing for holding either the lens or the set of grindin... | 06/13/1989 |
| 4772160 | Apparatus for machining the edge of a lens An apparatus for machining the edge of a lens. A fixed housing having a lid and a bulge is provided. Two half shafts mounted in the housing, with a lens being adapted to be held between these half shafts. A rotatable edge-machining tool in the form of a m... | 09/20/1988 |
| 4766699 | Apparatus for grinding the edges of lenses An apparatus for grinding the edges of lenses. A lens shaft is mounted on a frame, and a motor driven grinding wheel is provided that can be moved against a lens as well as parallel to the lens shaft. A chamber is mounted on the frame and accommodates a l... | 08/30/1988 |
| 4637168 | Spectacle lens edge grinding machine A spectacle lens edge grinding machine either having a support which carries the template abutment and the grinding wheel, and which can be moved toward the fixedly mounted support shaft for the spectacle lens and the template, or a support which carries ... | 01/20/1987 |
| 4543752 | Device for centering spectacle lenses and for fastening a holding part on the lenses A device for centering spectacle lenses and for fastening a holding part on the lenses. The device includes a mounting base, a guide or column sleeve arranged vertically thereon, as well as a casing which is rotatable and displaceable in height, and to wh... | 10/01/1985 |
