Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7396275 | Polishing machine comprising sliding means transverse to the front face A polishing machine for optical elements, comprising: a spindle arranged to rotationally drive an optical element; a polishing tool mobile relative to the spindle; a front face provided with a door... | 07/08/2008 |
| 7278908 | Polishing disk for a tool for the fine machining of optically active surfaces on spectacle lenses in particular A polishing disk for a tool for the fine machining of optically active surfaces on spectacle lenses in particular is disclosed, which comprises a support body, to which a foam layer is attached, wherein a polishing film bears against the foam layer. The polishing fi... | 10/09/2007 |
| 7198547 | Lens edger A lens edger which is capable of measuring the curvature of an eyeglass lens is disclosed. The lens edger includes a carriage which rotatably fixes a pair of lens fixing shafts and moves the position of the lens fixing shafts clamping a lens to be processed; a lens ... | 04/03/2007 |
| 7118449 | Method of manufacturing an optical element A method of manufacturing an optical element having an optical surface extending close to a periphery of a substrate comprises: providing a substrate having a main surface extending beyond a periphery of the optical surface and also performing a polishing of the opt... | 10/10/2006 |
| 7066794 | Tool for fine machining of optically active surfaces A tool (10) is disclosed for fine machining of optically active surfaces (F), with a base body (12) that can be attached to a tool spindle of a machine tool, and an elastic membrane (14) that has a machining section (16) to which connects... | 06/27/2006 |
| 6932678 | Polishing apparatus A polishing apparatus includes a polishing jig. The polishing jig includes an elastic balloon member, a fixture, and a fluid supply portion. The fixture airtightly closes the rear opening portion of the balloon member. The fluid supply portion supplies a fluid into ... | 08/23/2005 |
| 6926597 | Intermediate lens pad An intermediate lens pad having a side secured to curved surface of a lens tool when the pad is in use. The pad has a surface on its other side which is substantially smooth, but which is formed with a multiplicity of substantially uniformly distributed holes or rec... | 08/09/2005 |
| 6749925 | Data carrier The invention relates to different methods for distortion-free production of data carriers having at least in partial areas a transparent plastic layer with a surface structure in the form of a lens structure. The surface structure can be produced by cutting method ... | 06/15/2004 |
| 6733369 | Method and apparatus for polishing or lapping an aspherical surface of a work piece An apparatus for polishing or lapping an aspherical surface of a work piece comprises a tool rotatable about an axis, the working surface area of the tool being smaller than the work piece, and an arrangement by means of which the tool and the work piece are adjusta... | 05/11/2004 |
| 6599171 | Cup attaching apparatus A cup attaching apparatus for attaching a cup for eyeglass lens processing to a subject lens to be processed, includes: an imaging optical system, which obtains an image of the lens by illuminating the lens with rays of light shaped to be larger in diamet... | 07/29/2003 |
| 6582286 | End face polishing apparatus An end face polishing apparatus has a jig plate for supporting at least one workpiece having an end face and a polishing member for polishing the end face of the workpiece. A support mechanism supports the jig plate to undergo movement in a direction towa... | 06/24/2003 |
| 6561886 | Device for retaining abrasive pad on lap in eyeglass lens making apparatus A retainer for retaining an abrasive pad on a lens making machine and an abrasive pad adapted to such retention comprises a retainer nestable with a lap of a lens making machine wherein when such retainer is nested, a pad placed upon the lap before nestin... | 05/13/2003 |
| 6374011 | Blockless techniques for simultaneous polishing of multiple fiber optics A method and apparatus for polishing the side surfaces of fiber optics destined for devices in which the evanescent optical field of the optics must be accessed through polished side surfaces thereof. A plurality of fiber optics are temporarily affixed to... | 04/16/2002 |
| 6350190 | Template holder, target lens shape measuring device having the holder, and eyeglass lens processing apparatus having the device A template holder that is used in measurement of a target shape of an eyeglass lens and that attaches at least one of a template and a dummy lens thereon, includes a template attaching portion and a holding arm. The template attaching portion includes: a ... | 02/26/2002 |
| 6250992 | Mirror grinding method and glass lens A mirror surface grinding method processes an optical glass material into a lens shape using a cup-shaped grinding stone. The grinding stone is pupplied with a polishing solution which contains charged fine particles, thereby electrically attaching the ch... | 06/26/2001 |
| 6227952 | Apparatus for creating a concave surface from a spectacle blank A method for creation of a surface from a rough blank for spectacles is which is suitable for both brittle-hard materials and for plastics uses makes use of a disk-shaped, rotation-symmetrical tool of relatively large diameter, by means of which the mater... | 05/08/2001 |
| 6080044 | Fining/polishing machine A machine for fining/polishing ophthalmic lenses has a horizontal and vertical plates rigidly fixed in an inverted T. Eccentric shafts journalled 180 degrees out of phase on the horizontal plate orbit tools on one side of the vertical plate. A swing frame... | 06/27/2000 |
| 6048258 | Apparatus for grinding eyeglass lens A lens grinding apparatus that can process the edge of a lens to have a satisfactory polished surface and fit snugly into the user's eyeglass frame. The apparatus includes frame configuration data input device for entering data on the configuration of the... | 04/11/2000 |
| 5890949 | Eyeglass lens grinding machine An eyeglass lens grinding machine for processing lenses to be fitted in an eyeglass frame. Frame configurational data of an eyeglass frame and layout data of a lens are input to the machine, and a layout of the lens is determined based on the frame config... | 04/06/1999 |
| 5885142 | Device for cleaning a liquid crystal panel A liquid crystal (LC) panel cleaning device of the present invention includes a work table and a terminal seat located above the work table. While the cleaning device is in operation, the terminal seat sustains a terminal portion included in an LC panel a... | 03/23/1999 |
| 5577950 | Conformal tool operating apparatus and process for an ophthalmic lens finer/polisher A tool for fining/polishing an opthalmic lens has a spindle and a pliant casing containing a conformable filler connected to the spindle for rotation therewith. A pliant pad adhered to the casing has a plurality of slots extending from its perimeter towar... | 11/26/1996 |
| 5525096 | Apparatus for grinding spherical surface An apparatus for grinding spherical surfaces of workpieces includes a grinding section having a grindstone rotating mechanism for rotating around an axis of a shaft thereof with a grindstone held at an end of the shaft, a feeding mechanism for feeding the... | 06/11/1996 |
| 5408792 | Process, block or sucker for 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... | 04/25/1995 |
| 5214882 | Vacuum activated tool for the fabrication of optical surfaces A tool is disclosed for accurately and rapidly finishing optical surfaces. The tool has a plurality of lapping buttons attached to its face for contacting the optical surface to be finished. The lapping buttons are held to the surface of the workpiece by ... | 06/01/1993 |
| 5205076 | Self-aligned lens manufacturing system and method Contact and intra-ocular lenses are manufactured by forming reference surfaces in a lens blank along with the inner base surface for the lens. The partially formed lens blank is then mounted to a blocking member which has complementary surfaces that mate ... | 04/27/1993 |
| 5195407 | Apparatus for making an aspherical lens and a method of making an aspherical lens An apparatus and method for forming aspherical lenses is provided in which a holder holds and rotates a predetermined lens workpiece, with a rotation detecting device provided for detecting the rotation angle of the workpiece. The cutting bit is mounted t... | 03/23/1993 |
| 5181345 | Lens grinding method and apparatus A lens grinding apparatus is capable of generating, in a lens blank, a power curve less than three diopters and having both a base characteristic and a cross curve characteristic. A plate is pivotably mounted on a base means, a first slide is slidably mou... | 01/26/1993 |
| 5148632 | Cavity forming in plastic body An apparatus and method for forming a cavity in a rigid, organic plastic body comprises an abrading tool mounted on a carrier, an air spindle for imparting a rotary motion to the tool, and a second air spindle on which the tool carrier is mounted and whic... | 09/22/1992 |
| 5138798 | Method and apparatus for polishing an optical component Method and apparatus for polishing the surface of an optical component by means of a polisher (12) carried by a support (24) which is pivotally mounted at the end of a robot arm (10) and which includes means for uniformly distributing the action of the po... | 08/18/1992 |
| 5107628 | Method of fabricating article having aspheric figure and tool for use in carrying out the method A method of and apparatus for fabricating an article having an aspheric figure, wherein the three-dimensional positional relationship between a work and a grinding spindle as a processing tool is controlled in terms of a polar coordinate system. The grind... | 04/28/1992 |
| 5027560 | Machine for finishing the surface of a lens A machine for finishing the surface of a lens including a lap holder moved orbitally in a first plane, a lens arm support having a lens holder, the lens arm support being oscillated in a second plane perpendicular to the first plane, the lens arm holder b... | 07/02/1991 |
| 5024024 | Grinding and finishing apparatus and method A grinding and finishing apparatus for mechanically working a workpiece by grinding and finishing process is desclosed. The apparatus comprises a workpiece carrying shaft for carrying a workpiece so as to rotatively drive or rotate it about its axis, a to... | 06/18/1991 |
| 4999954 | Polishing apparatus There is disclosed a polishing apparatus utilizing a gel material as the polishing tool, in which the gel material is rotated in the vicinity of a surface to be polished, or is given rotating and rocking motions in direct contact with the surface to be po... | 03/19/1991 |
| 4993195 | Lens cutting methods for effecting rapid replacement of lens cutting tools Quick-change methods and apparatus enable the cutting tool of a lens cutting machine to be exchanged with minimal down time of the machine. A replacement cutting tool is gauged in an off-machine gauging mechanism while the machine is able to continue an o... | 02/19/1991 |
| 4956944 | Polishing apparatus A polishing apparatus for polishing a surface of a work piece requiring high surface precision such as an optical component or a metal mold by applying a tool, in which the tool is given a rocking motion of the surface of work to be polished while the wor... | 09/18/1990 |
| 4947715 | Method and apparatus for cutting an aspheric surface on a workpiece A lathe and a method of using the lathe are disclosed for forming an aspheric surface on a workpiece, in which the workpiece is mounted to a holder that is rotatably carried by the spindle, headstock and bed of a lathe, with that spindle and workpiece bei... | 08/14/1990 |
| 4928435 | Apparatus for working curved surfaces on a workpiece An apparatus for working an aspherical surface on a workpiece including a mechanism for adjusting a position of a workpiece in a horizontal direction, a rotary table having a vertical axis of rotation rotatably mounted on the adjusting mechanism, the rota... | 05/29/1990 |
| 4928433 | Apparatus for effecting rapid replacement of lens cutting tools Quick-change methods and apparatus enable the cutting tool of a lens cutting machine to be exchanged with minimal down time of the machine. A replacement cutting tool is gauged in an off-machine gauging mechanism while the machine is able to continue an o... | 05/29/1990 |
| 4920700 | Process for finishing optical lenses and apparatus therefor A process and apparatus for finishing optical lenses including processing steps of smoothing and polishing of the lens, suitable in particular for the production of ophthalmic lenses, characterized by a special feature of replacing, after completion of th... | 05/01/1990 |
| 4901478 | Radial diamond alignment apparatus for a lens generator A lens generator for optical eyeglass lenses utilizes a carriage and gauge for adjusting and simultaneously measuring the radial displacement between a quill holder and a fixed location tailstock holding a lens blank. By quickly and accurately adjusting t... | 02/20/1990 |
