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6180032 |
Apparatus and method for removing and transporting articles from molds
An apparatus and a method for removing and transporting articles from molds. More specifically, the present invention pertains to such an apparatus and method which is particularly well suited for...
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6165393 |
Production method of dielectric lens
The present invention is for providing a production method of a dielectric lens with the excellent productivity, capable of achieving the shape accuracy or density homogeneity of the demanded...
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6132652 |
Method of producing lightguide plate for surface light source, lightguide plate for surface light source and surface light source using the same
In a method of producing a lightguide plate for surface light source according to the present invention, a plate-shaped metal mold for defining the shape of a part of a cavity of a molding die and...
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6113817 |
Molding processes
Efficient and consistent processes for manufacturing moldings, especially ophthalmic lenses such as contact lenses. The processes comprises a series of improvements, including improvements in the...
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6106746 |
Manufacture of mouldings
The invention relates to a novel process for producing mouldings, especially contact lenses, which comprises the following steps: a) preparing a substantially aqueous solution of a water-soluble...
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6099123 |
Production of photopolymerized polyester high index ophthalmic lenses
Unsaturated polyester resin-based ophthalmic lens compositions that are modified for unexpected improvement in speed of manufacture while maintaining uniform, low optical distortion and/or improved...
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6071440 |
Contact lens production line pallet system
A contact lens production line pallet system transports contact lens mold materials throughout a facility for producing ophthalmic lenses. Specifically, the contact lens production line pallet...
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6053944 |
IOLs with improved fixation strengths for fixation members
New intraocular lenses (IOLs) and methods for producing IOLs are disclosed. The present methods include a combination of steps which increase the pull strength between the fixation member of the...
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6048371 |
Process for preparing soft tinted lenses
A process for preparing a soft, tinted lens is described. The process comprises the steps of softening and tinting a xerogel lens 1, wherein the softening and the tinting are achieved by immersing...
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6042756 |
Process for the manufacture of moulded articles that are partly colored or have regions of different colors
For the fast and rational manufacture of moulded articles, specifically contact lenses, that are partly colored or have regions of different colors, by the casting process, measured amounts of two...
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6042754 |
Continuous extrusion-compression molding process for making optical articles
The present invention relates to making optical articles such as opthalmic lenses by molding and, in particular, to using a continuous extrusion-compression molding method to make plastic lenses...
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6036893 |
Method of making an antenna lens
The process for making an antenna lens having a lens core and a coating layer surrounding it includes making a stiff shell (1,2) forming a lens coating layer in a predetermined shape suitable for...
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6037144 |
Method of preparing a biological material for use in ophthalmology
A collagen containing substrate comprising cattle basal membrane is conditioned by incubating the membranes in a mixture of pepsin, hyaluronidase and acetic acid and separating the collagen from...
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6020983 |
Method for the manufacture of eye-covering articles bearing decorative reflection holograms
A method is provided for the manufacture of a holographic eye-covering article, the eye-covering article having an interference pattern corresponding to a predetermined three-dimensional object...
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6009728 |
Die for press-molding optical elements
A die for press-molding glass optical elements comprising (a) a base material having heat resistance and sufficient strength to withstand press-molding of optical glass elements; (b) a film on said...
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6007746 |
Method for manufacturing preforms used in molding optical elements and method for manufacturing and molding optical elements
A method for manufacturing preforms used in molding optical elements includes: (1) forming an array made from a material for optical elements, in which a plurality of preform portions used in...
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6007888 |
Directed energy assisted in vacuo micro embossing
Various configurations of a directed energy assisted micro embossing machine/station in a vacuum chamber utilized in a continuous manufacturing process and the web structure products made by that...
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6003338 |
Molding method for optical element
A molding method for optical element is disclosed in which a glass material prepared for weight is introduced into a mold and then heated to soften, and subsequently pressed with the mold to mold...
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5994441 |
Acrylic polymers for molding
Use of monovalent salts of saturated and unsaturated fatty acids C 10 -C 18 as external lubricants in granules formulation based on acrylic polymers for injection molding at temperatures from...
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5976425 |
Optical device molding apparatus and method, and optical device
Lens surfaces are transferred by press-molding a glass material (16) by an upper mold (1) and a lower mold (2). After the lens surfaces are transferred, the outer circumferential portions of the...
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5972249 |
Method and apparatus for curing contact lenses
A method and apparatus for curing lenses involves supporting mold assemblies containing lens-forming mixture on plates, where the plates are stacked vertically with sufficient clearance to separate...
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5973823 |
Method for the mechanical stabilization and for tuning a filter having a photonic crystal structure
A method for mechanically stabilizing and for tuning a filter having a photonic crystal structure The cavities of the filter fabricated as a photonic crystal structure are filled with optically...
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5968422 |
Injection molding process for rotationally asymmetric contact lens surfaces
A method of injection molding contact lens molds for cast molding contact lenses having a rotationally asymmetric lens surface, and apparatus for carrying out the method, are disclosed.
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5968664 |
Polymeric coated substrates for producing optically variable products
A method is provided for forming a strippable or dissolvable release coating on the surface of substrate such as a flexible polymeric film or web. The release coating is subsequently coated with a...
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5965069 |
Method for making optical preforms and optical elements by press
A method for making optical preforms of optical elements without residual stress or distortion is provided. In this method, an optical material is supplied between upper and lower molds. The upper...
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5965630 |
Soft contact lens with high moisture content and method for producing the same
A method for producing moisture-containing soft contact lenses by polymerizing monomers for contact lenses in the presence of a diluent for monomers and substituting the diluent contained in the...
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5948488 |
Glittering cube-corner article
A glittering non-retroreflective sheeting 60 includes an array of cube-corner elements 30 that are arranged in the array such that the sheeting glitters when light is incident thereon. The glitter...
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5945041 |
Method and device for producing lenses of microoptical systems and optical emitter/receiver system
Method and device for producing lenses of microoptical systems and an optical emitter/receiver system. A curable liquid lens material is introduced into a mount which serves as a lens holder for...
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5938986 |
Method and apparatus for manufacturing a graded refractive index plastic optical-fiber
A plastic optical-fiber is provided having a desired length and a desired graded refractive index. To this end, a base polymer is mixed with a non-polymerizable compound having a higher refractive...
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5935491 |
Gradient-index polymer rods and fibers
The invention features a method of making a gradient-index polymer rod involving the steps of: combining a polymer with an additive, wherein the refractive index of the polymer material is...
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5932342 |
Optical diffusers obtained by fluid phase mixing of incompatible materials
A process for producing a light diffusing sheet material, and materials made therefrom. A dispersion of light scattering optically clear particles in an optically clear matrix during mixing of the...
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5928574 |
Method of making optical fiber
Fiber bow makes mass fusion splicing of optical fiber difficult and this is undesirable. We have found that fiber bow can be significantly reduced if the fiber that is being drawn from a heated...
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5922249 |
Ophthalmic lens production process
A method of making an ophthalmic lens including the steps of: preparing a polymerizable composition comprising excessive oxygen content; contacting the polymerizable composition with a gas that is...
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5916402 |
Method for manufacturing optical element
An object of the present invention is to allow an optical element to be obtained with good precision using a polymer film and a glass substrate as a reinforcer. The present invention is...
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5916494 |
Rotational indexing base curve deposition array
A rotational indexing base curve deposition array for assembling contact lens base curves and front curves with a prescribed and programmable angular orientation to produce a contact lens having a...
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5917001 |
Lens for lighting systems
An uncoated lens, especially for use as the lens of a fog light or a headlight for an automobile, and having particularly good resistance against the environmental effects which are inherent in...
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5897882 |
Glass repair system
A system for repairing damaged glass including a vacuum powered anchor for securing the damage repair system to a surface of a damaged piece of glass proximate to a flaw in the glass surface....
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5898523 |
Tiled retroreflective sheeting composed of highly canted cube corner elements
A retroreflective sheeting includes a first array of cube corner element opposing pairs and a second array of cube corner element opposing pairs. The symmetry axes of the cube corner elements in...
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5886764 |
Polyester resin-based high index ophthalmic lenses having improved optical uniformity and/or tintability
Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives...
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5876642 |
Process for making a mold for the manufacture of microlenses
Preferential etching techniques are used to form a mold which can then be used to mold a microlens array. A mask (4 i ) made of a material which is resistant to a chemical composition for etching...
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5861114 |
Method of manufacturing complex optical designs in soft contact lenses
A method of manufacturing complex optical surfaces in soft contact lenses includes a first step of defining the complex optical surfaces with a computer assisted drafting program using a mix of...
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5849810 |
Photocrosslinked polymers
The invention relates to a novel process for the manufacture of mouldings, especially contact lenses, in which a soluble prepolymer comprising crosslinkable groups is crosslinked in solution, and...
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5850107 |
Mold separation method and apparatus
An apparatus for separating individual contact lens mold assemblies, the assemblies each being a front curve mold half and a back curve mold half, each mold half having annular circumferential...
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5840219 |
Intraocular lenses and methods for making same
New intraocular lenses and methods for producing such lenses are included. In one embodiment, the intraocular lens includes an optic; and at least one fixation member, e.g., haptic, secured to and...
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5837797 |
Process for preparing a sulfur-containing urethane-based plastic lens and the lens prepared thereby
A novel polythiol having four or more functional groups, a process for producing the polythiol comprising reacting thiourea with a specific compound, a sulfur-containing urethane-based resin...
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5837156 |
Methods of fabricating intraocular lenses and lens molds
The two sides of a multiple cavity mold having electroformed mold cavities for molding intraocular lenses with integral haptics are made by a preferred electroforming procedure involving the use of...
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5820793 |
Process for producing optical disk
A molded article having a predetermined shape transferred from a mold, characterized by being provided with an informative mark corresponding to the number of times of use of the mold, and a...
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5815621 |
Optical fiber connector ferrule with die and method of manufacturing same
An optical connector ferrule of this invention includes a holding portion arranged at a position along an inserting direction of optical fibers to constitute a front surface of the ferrule and...
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5804106 |
Manufacturing method for UV-screening photochromism eye glasses
The manufacturing process for UV-screening photochromism eye glasses is based on the use of polycarbonate, polymethyl methacrylate or Nylon as substrate to be mixed with spironaphthoxazine or its...
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5788732 |
Optical-device forming method and apparatus
A method and apparatus for forming an optical device of a desired shape presses a heat-softened optical material using a set of molds. The optical material is aligned with respect to the molds by...
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