Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7820082 | Method for adding a thermoset overmold layer to a lens within a mold A method and coating used to prepare a photochromically-enabled bifocal ophthalmic lens. The method and equipment includes injection molding a single vision lens, for example, from polycarbonate. The clamp opens vertically and the top insert is exchanged for a bifoc... | 10/26/2010 |
| 7368072 | Photochromic contact lenses and methods of manufacturing Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a ca... | 05/06/2008 |
| 7326373 | Method for forming a wafer for use in an optical part An improved method is disclosed, for forming a wafer into a complex, curved shape, for use in an optical part. The method includes a step of moving the wafer into contact with a molding surface having a predetermined non-cylindrical, aspheric curved shape, to form t... | 02/05/2008 |
| 7217375 | Apparatus and method of fabricating a compensating element for wavefront correction using spatially localized curing of resin mixtures An optical wavefront correction plate incorporates a unique, three-dimensional spatial retardation distribution utilizing the index of refraction change of resin mixture in its cured state. The optical wave plate comprises a pair of transparent plates, containing a ... | 05/15/2007 |
| 7077985 | Injection molding of lens A flat or curved photochromic laminate structure and a plastic photochromic lens blank can be produced in a simple and efficient manner from relatively low-cost polymeric sheet materials. These laminates can be used to provide goggles, face shields, windows, window ... | 07/18/2006 |
| 7051290 | Graphical interface for receiving eyeglass prescription information A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner. The lens curing system includes a computer-implemented method configured to collect prescription information, sav... | 05/23/2006 |
| 7011409 | Method of manufacturing spectacles with lenses An object of this invention is to improve the safety. Lens bodies 2, 2a are formed integrally on the rear surface of a shield so as to avoid such a danger that the eyes may be injured due to drop or separation of the lens bodies 2, 2a. | 03/14/2006 |
| 6811830 | Photochromic article and method of preparation A process for manufacture of a photochromic polymeric article comprising: providing a fluid polymerisable composition; subjecting the fluid polymerisable composition to a first curing step to provide a solid article of intermediate hardness; contacting the solid art... | 11/02/2004 |
| 6491851 | Method for obtaining an ophthalmic lens comprising a surface utility microstructure and resulting ophthalmic lenses The invention concerns a method for obtaining an ophthalmic lens comprising a surface utility microstructure, in in particular antiglare. The method for obtaining an ophthalmic lens comprising a surface utility microstructure consists in a step for transf... | 12/10/2002 |
| 6448304 | Optical materials having good ultraviolet absorbability and method for producing them An optical material, particularly a plastic lens for spectacles, which absorbs almost all UV rays of up to around 400 nm or so and is not too yellow, is obtained by dipping a poly(thio)urethane material or a diethylene glycol bisallylcarbonate polymer mat... | 09/10/2002 |
| 6433936 | Lens of gradient dielectric constant and methods of production Disclosed is a lens of gradient dielectric constant and methods for the production of same. The lens includes an inner core comprising a cured or fused substantially homogenous blend of glass spheres, curable or fusible binder and, as needed to increase d... | 08/13/2002 |
| 6265510 | Thiol and sulfur-containing O-(meth)acrylate compounds and use thereof A sulfur-containing O-(meth)acrylate compound of the following formula (1) is useful as a starting material for a resin composition used in optical applications such as a lens; ##STR1## wherein R represents hydrogen atom or methyl group; 1 represents an i... | 07/24/2001 |
| 6123422 | Methods for producing progressive addition lenses The invention provides progressive addition lenses in which lens unwanted astigmatism is reduced and channel width through the intermediate and near vision zones is increased as compared to conventional progressive addition lenses. This result is achieved... | 09/26/2000 |
| 6010647 | Multifocal lens and method of making the same A multifocal lens having a plurality of focal points with focal positions different from each other includes a central optical portion, centered at an optical axis, having a predetermined refractive index. The lens further includes at least one outer opti... | 01/04/2000 |
| 5702819 | Composite lenses A method for making improved optical quality lenses is described which includes arranging a mold having a molding surface, a curable optical quality resin composition, and a plastic lens preform of optical quality material such that the resin composition ... | 12/30/1997 |
| 5601759 | Method for molding contact lenses A method of molding a series of contact lenses having a range of optical powers using a matrix of posterior and anterior molds having varying surface characteristics such that the optical powers vary while maintaining constant fitting characteristics, and... | 02/11/1997 |
| 5531940 | Method for manufacturing photochromic lenses Methods for making optical quality plastics lenses with photochromic additives are described. According to a first embodiment of the invention, a casting resin is containing photochromic additives is arranged between a mold and a lens preform and then cur... | 07/02/1996 |
| 5528321 | Method of manufacturing contact lenses A method for providing a contact lens for a patient. According to this method, an optical preform is selected, and a resting position of the optical preform on the patient's eye is determined. An optical feature is also located on a patient's eye. Then, a... | 06/18/1996 |
| 5512220 | Method of making a clear axis, segmented multifocal ophthalmic lens A method of making a multifocal refractive lens to focus light on the retina of the eye. The lens includes a plurality of segments, having different optical powers, at least one for distance vision and another for near. The lens does not require orientati... | 04/30/1996 |
| 5507979 | Method of manufacturing a segmented multifocal ophthalmic lens A method of making multifocal refractive contact lens to focus light on the retina of the eye uses a plurality of at least two of each alternating segments having different optical powers for distance vision and for near. The lens of the invention does no... | 04/16/1996 |
| 5433898 | Method of manufacturing a contact lens Methods of manufacturing a contact lens form a mold which has a first section formed from a first material and a second section formed from a second material. The methods permit the facile preparation of contact lenses having two or more differing materia... | 07/18/1995 |
| 5405557 | Method of making a moulded photochromic lens A lens has two or more layered sections of thermosetting material, and a substantially homogenous formation in which at least one of the layered sections has an active photochromic material present. The article is made by: forming a mould cavity from firs... | 04/11/1995 |
| 5406341 | Toric single vision, spherical or aspheric bifocal, multifocal or progressive contact lenses and method of manufacturing A method for making a finished aspheric single vision, spherical or aspheric bifocal, multifocal or progressive addition contact lens includes the step of fitting a patient requiring a near correction with a single vision spherical or aspheric contact len... | 04/11/1995 |
| 5366668 | Polymeric bifocal lens production process A polymeric bifocal lens production process including the steps of selecting a single vision lens or lens blank with a convex surface, and a bifocal mould with a smaller radius of curvature; toughening the convex surface of the lens or lens blank; assembl... | 11/22/1994 |
| 5358672 | Method for removing finished articles from glass, plastic or metallic molds A method for demolding a molded article from a mold assembly having at least one mold with a molding surface includes the steps of: providing at least one tape segment on the molding surface of the mold before performing the molding process such that the ... | 10/25/1994 |
| 5343260 | Composite ophthalmic lenses and their manufacture This invention is directed to the fabrication of composite lenses consisting of a transparent thermoset polymer exhibiting an index of refraction of at least 1.58 and a thin glass element of essentially constant thickness adhered to the front surface of t... | 08/30/1994 |
| 5200121 | Method for the manufacture of contact lenses In the process described, a limited number of shaping tools (T1, T2, . . . , TN) having standardized parameters (for the production of the following contact lens parameters: contact lens diameter, radius of curvature of th... | 04/06/1993 |
| 5147437 | Invisible flat-top mold blank and method for manufacturing same A mold blank for manufacturing eyeglass lenses containing a flat top bifocal segment. A ceramic platform is first constructed containing an optical surface having a recess corresponding to the flat top bifocal segment. A concave-convex glass mold blank po... | 09/15/1992 |
| 5147585 | Method for forming plastic optical quality spectacle lenses A fast, relatively inexpensive and simple method is disclosed for producing a finished plastic multifocal or progressive lens from a preformed lens which has a predetermined lens correction (i.e., curvature or prescription) at its optical center. The meth... | 09/15/1992 |
| 5141678 | Method for forming disposable molds for producing optical quality lenses A fast, simple and relatively inexpensive method for forming disposable molds for use in casting optical quality lenses. A method of producing a disposable mold having a casting surface is disclosed which comprises providing a base master having a first c... | 08/25/1992 |
| 5120120 | Multifocal optical device with spurious order suppression and method for manufacture of same A multifocal optical device is provided for focusing light traveling parallel to an optical axis of the device. The multifocal optical device comprises a multifocal phase zone plate including at least two annular zones disposed substantially concentricall... | 06/09/1992 |
| 4986939 | Method for the production of cylindrically symmetric bodies with a radial gradient In a method for the production of cylindrically symmetric bodies with given radial gradient of the material properties, for example of the refractive index, at least two rod-shaped molded bodies consisting of materials with different properties are joined... | 01/22/1991 |
| 4944584 | Plastic multifocal point spherical lens A plastic multifocal point spherical lens comprising a unitary structure of (A) a first synthetic resin layer having a fixed refractive index, (B) a second synthetic resin layer having a substantially fixed refractive index different from the refractive i... | 07/31/1990 |
| 4940205 | Duplex lens A method and apparatus for forming a laminated bifocal lens which includes forming a frontal lens component having a bifocal element in a substantially stress-free manner and bonding the frontal lens component to a rear lens component which is also formed... | 07/10/1990 |
| 4883548 | Process for producing laminated ophthalmic lens According to the present invention, a plurality of first lens elements each having specific lens optical values and a plurality of second lens elements each having specific lens optical values are kept in stock; each one of the first and second lens eleme... | 11/28/1989 |
| 4873029 | Method for manufacturing lenses The disclosure relates to a method and apparatus for manufacturing lenses including the use of a wafer in conjunction with liquid monomer to provide a molded plastic lens. In the molding process, a first mold form is sealingly secured to a gasket to form ... | 10/10/1989 |
| 4859261 | Method of making multi-focus ophthalmic lens A method of producing multifocal ophthalmic lenses having a near vision minor lens element adhesively secured to the ocular surface of a major lens is disclosed. The ocular surface of the major lens is finished to provide an ophthalmic prescription lens. ... | 08/22/1989 |
| 4846913 | Method for making bifocal lens Apparatus and a method of making an eyeglass lens module in which two lens components are disclosed. The first component is a conventional single vision stock lens having conventional corrections in the negative or positive diopter range. The second lens ... | 07/11/1989 |
| 4758448 | Coated ophthalmic lenses and method for coating the same An ophthalmic lens and a method for providing a thin coating thereon is disclosed. The coatings render the surfaces of the devices resistant to abrasion and have an SEB abrasion resistance to at least 20 psi. They are optically clear, aberration-free, and... | 07/19/1988 |
| 4666249 | Surface-treated contact lens and method of producing A contact lens for correction of astigmatism is formed from a single polymeric or copolymeric material. The lens has a central optical zone of greater rigidity than a surrounding non-optical zone. The rigidity of the central optical zone is sufficient for... | 05/19/1987 |
