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7267790 |
Method and apparatus for treating a disc substrate
A molded disc substrate obtained by injection molding is rotated at high speed before the molded disc substrate has solidified, and a gas is also made to flow in an outward radial direction along a...
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7238307 |
Method for pre-conditioning inserts for injection molding
A method is disclosed for pre-conditioning inserts for improved replication during injection molding. The pre-conditioned inserts provide improved bonding with the injection-material and improved...
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7160488 |
Method of manufacturing intraocular lenses and intraocular lenses manufactured by the method
A method of manufacturing an intraocular lens includes: a first step of producing a base material for the intraocular lens by polymerizing a first polymerizable monomer which is a raw material of...
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7112253 |
Manufacturing transparent mirrored mini-balls for solar energy concentration and analogous applications
Method and apparatus are presented for manufacturing transparent mirrored spheroidal mini-balls for solar energy and related applications such as optical switches. For these applications it is...
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7060208 |
Method of preparing an eyeglass lens with a controller
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.
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6998073 |
Pulse extraction of ocular medical devices
A method of extracting residual materials from a polymeric, ophthalmic biomedical device, such as a contact lens, by using a mixture comprised of a primary solvent, such as carbon dioxide, and a...
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6962669 |
Computerized controller for an eyeglass lens curing apparatus
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.
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6939487 |
Deblocking contact lenses
A method and apparatus for removing a polymeric contact lens from a mold comprising lowering the temperature of the contact lens with a cryogenic material, such as liquid nitrogen, to a temperature...
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6905640 |
Method of aligning liquid crystal compounds
A method of aligning a liquid crystal compound comprising a stretching treatment or rubbing treatment which allows the liquid crystal compound to be aligned in a direction different from the...
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6893586 |
Plastic optical element, plastic optical element producing method and plastic optical element producing apparatus
A plastic optical element producing method produces a plastic optical element by an injection molding, and includes the step of cooling the optical element to a room temperature to cool an optical...
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6888676 |
Method of making polarizer and antireflection microstructure for mobile phone display and window
A method of producing an antireflection structure for use on a display or a window surface or both in an electronic device, such as a mobile phone. The display can be an LCD with a top polarizer...
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6875380 |
Method and apparatus for manufacturing plastic optical element and plastic optical element
A method for manufacturing an optical element, such as a plastic lens or similar, by molding. The manufacturing method includes the steps of molding the plastic lens under a prescribed molding...
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6852820 |
Method for preparing acrylic copolymer materials suitable for ophthalmic devices
Solid rigid acrylic copolymer materials, useful for forming ophthalmic devices, are processed into the shape of an ophthalmic device, such as an intraocular lens and are then processed into a...
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6851282 |
Apparatus and method for making optical fiber
A drawing apparatus 1 has a drawing furnace 11 , a heating furnace 21 , and a resin curing section 31 . The drawing furnace 11 has a muffle tube 13 to which an He gas supply passage 15 ...
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6849114 |
Dispersion comprising silicon/titanium mixed oxide powder, and green bodies and shaped glass articles produced therefrom
Aqueous dispersion comprising silicon/titanium mixed oxide powder with a BET surface area of 5 to 500 m 2 /g which has been prepared by flame hydrolysis and has a titanium dioxide content of 0.5 to...
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6843941 |
Method for fabricating a ferroelectric polymer film
A film made of a vinylidene-trifluoroethylene or tetrafluoroethylene copolymer is uniaxially drawn to fabricate a uniaxially drawn film. Then, the uniaxially drawn film is thermally treated at a...
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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...
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6783721 |
Method of making an ion treated hydrogel
A high strength hydrogel having a constant swelling pressure upon implantation and thereafter is formed by preparing a hydrogel solution and then injecting the solution into a mold and cause to...
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6765083 |
Solvents useful in the preparation of polymers containing hydrophilic and hydrophobic monomers
This invention relates to solvents which may be used to extract polymers that are made of hydrophilic and hydrophobic monomers.
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6749779 |
Precision integral articles
This disclosure describes a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles...
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6695988 |
Method and apparatus for washing or hydration of ophthalmic devices
This invention discloses an apparatus and method for hydrating or washing ophthalmic devices, comprising the step of directing to an ophthalmic device having a higher concentration of impurities...
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6627124 |
Single mould alignment
The invention tackles the problem of improving the production process for contact lenses further, so that the production costs for contact lenses can be reduced further and the production...
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6610221 |
Treatment of contact lenses with supercritical fluid
A method of treating contact lenses made from polymerizable materials by providing supercritical fluids to the lenses.
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6565775 |
Method of cooling an optical fiber while it is being drawn
A method of cooling an optical fiber during drawing through contact with at least one cooling fluid in at least one cooling area, wherein fast cooling, i.e. cooling that is faster than cooling in...
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6558584 |
Apparatus and method for handling an ophthalmic lens
Apparatus and method for handling an ophthalmic lens in a manufacturing line where lenses are presented for picking and transport to a respective lens receptacle. The problem of lens fly-away is...
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6555030 |
Method for making an accommodating intraocular lens
A method of making an intraocular lens having an optic portion joined to a haptic portion by a flexible element which comprises the steps of: (e) forming a core of a material suitable for use as...
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6540946 |
Microlens for surface mount products
A photosensitive device with a microlens array may be packaged for surface mount packaging and subsequent mass reflow processing without significantly degrading the optical performance of the...
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6527985 |
Method for producing gradient index refraction index profiles in polymer optical fibers
In a method for producing graded-index profiles in polymeric optical fibers, ionizing radiation is used to cause an increase in the refractive index, for example in PMMA. Polymeric optical fibers,...
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6479587 |
Crosslinkable polyurea polymers
The invention relates to novel crosslinkable prepolymers of formula (1), wherein the variables have the meanings given in the claims, to homo- or co-polymers obtainable therefrom by crosslinking...
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6402995 |
Process for preparing polyvinyl alcohol contact lenses
A process for preparing crosslinked polyvinyl alcohol contact lenses through hydrolysis of a copolymer of a vinyl ester with triallyl isocyanurate, which includes preparing a mixture of 100 parts...
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6391230 |
Intraocular lens manufacturing process
A method of cast molding an intraocular implant from two or more dissimilar materials using disposable molds. The subject cast molding method is particularly useful in the production of intraocular...
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6347870 |
Handling assembly for fluid processing of ophthalmic lenses
An assembly for fluid processing of an array of ophthalmic lenses includes a support having an array of holes in which an array of lens receptacles are removably positioned for fluid processing. A...
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6255362 |
Ocular lens material and process for producing the same
An ocular lens material comprising a polymer prepared by polymerizing a polymerizable component for an ocular lens, containing (A) 20 to 50% by weight of a silicon-containing alkyl acrylate, (B) 20...
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6201036 |
Light-curable polymer material, method for making an elastic intraocular lens, and an elastic intraocular lens
A light-curable polymer material for making an intraocular lens is a mixture of components consisting of oligourethanemethacrylate, octylmethacrylate, oligocarbonatemetharcrylate,...
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6193898 |
Method and apparatus for fabricating reflector
A plurality of reflectors respectively having the same rough reflecting surfaces are formed substantially simultaneously on a transparent substrate of a large area. A photosensitive resin film is...
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6190603 |
Process for producing mouldings
A novel process for producing mouldings, especially contact lenses, is described, comprising the following steps: a) introducing into a mould a prepolymer containing photo crosslinkable groups that...
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6187888 |
Cast molding material for plastic lens and process for the production of plastic lens
A cast-molding material for a plastic lens which is almost free from causing defective dyeing when dyed, and a process for producing plastic lenses almost free from causing defective dyeing, the...
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6171529 |
Method of releasing a transparent polymer material from a mold and its use in the fabrication of a transparent polymer material article such as an ophthalmic lens
A method of releasing from the mold a transparent polymer material article formed in a cavity of a two-part mold by polymerizing a liquid polymerizable substance includes the step of uniformly...
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6159397 |
Translucent eyewear lenses and method of manufacture therefor
The present invention is addressed to a method for fabricating lenses having at least one or more translucent regions used to reduce glare and/or increase visual acuity. To overcome the limitations...
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6156244 |
Storage-stable hydrogels
The present invention relates to a process for the preparation of storage-stable hydrogel mouldings, the storage stability of which can be established by controlled hydrolysis. At the same time as...
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6143210 |
Automated cast mold hydrating device
A method for processing a cured contact lens wherein the contact lens is hydrated while retained in the mold cavity in which it was cast. The lens is released from the mold with cured excess lens...
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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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6109064 |
Process for treating optical fibers by cryogenic tempering
The transmission properties of an optical fiber are enhanced by cooling the fiber gradually to temperatures of at least -300° Fahrenheit, maintaining the fiber at such reduced temperature for a...
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6082987 |
Apparatus for assembling a lens-forming device
An apparatus and method for assembling a lens-forming structure, the structure having a front mold, a rear mold, and a gasket defining an axially extending bore, including a collet for supporting...
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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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6051289 |
Liquid crystalline polymer film, laminate sheet for optical element using same, and optical element using the laminate
To provide a film for optical element made of liquid crystal polymer whose productivity and economical efficiency are improved; a laminated sheet formed by bonding this film to a polarizing plate;...
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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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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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5945498 |
Polysiloxane-comprising perfluoroalkyl ethers and the preparation and use thereof
The present invention describes a free radical polymerizable segmented macromonomer based on perfluoroelkyl ether, polysiloxane and divalent organic segments. This macromoner can be polymerized and...
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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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