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7323124 |
Optical disc cover layer formation method and optical disc cover layer formation device
A liquid-form adhesive, which is a raw material of the cover layer, is supplied to a plate surface of the disc substrate, which has been set on a turntable, after which a dummy substrate is set on...
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7160496 |
Thermoplastic compositions containing metal material
Thermoplastic compositions containing metal materials and a method for preparing the same. The compositions are formed into particles having diameters suitable for a rotational thermoforming...
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7128851 |
Method of removing scratches from a compact disc
An apparatus and method is disclosed for repairing and removing scratches from an optically-read disc, e. g., compact discs (often called “CD's” or “DVD's” such that when refurbished, an...
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6984345 |
Cavity-preventing type reactor and a method for fabricating a preform for a plastic optical fiber using the same
A cavity-preventing type reactor and a method for fabricating a preform for a plastic optical fiber using the same, wherein post-process charging of additional monomer or prepolymer into...
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6951398 |
Deformable reflecting mirrors from metallic surface layers deposited on liquids
The invention relates to a new type of reflective optical element made of a reflective metallic layer comprising reflecting nanoparticles deposited on a liquid surface. Metallic or non-metallic...
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6896417 |
Hollow cast article with slit, method and apparatus for production thereof
In the production of a hollow cast article having a slit, the release of a hollow cast product from a mold is carried out while opening the hollow cast product. In one embodiment, a core provided...
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6878314 |
Method for automatic manufacture of and printing on astigmatic contact lenses and apparatus therefor
A method of automatic manufacture of an astigmatic contact lens having a toric portion and a ballast portion such that said ballast portion causes the toric portion of the contact lens to properly...
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6783707 |
Lens, manufacturing method thereof, and optical pickup
Disclosed are a lens efficiently manufactured into an accurate shape at a low cost, a manufacturing method thereof, and an optical pickup using the lens. The lens includes a geometrical optics...
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6776932 |
Polymeric optical articles
Polymeric optical articles, including gradient index optical preforms and fiber produced therefrom, are described. Methods for producing the optical articles using platicizers and/or dopants in the...
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6703100 |
Disk-like recording medium and method for producing the same
A recording medium for information signals including a substrate, a signal recording layer provided on one major surface of the substrate and a clamp member having a positioning unit at its center...
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6682666 |
Object with radially varying refractive index, and producing method and apparatus thereof
Disclosed herein is a method of producing an object having a refractive index which varies radially from the central portion of the object toward the peripheral portion thereof. Also, an object...
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6579476 |
Method for molding ophthalmic lenses made of plastic material
A method for molding a plastic ophthalmic lens which comprises introducing a liquid polymerizable composition in a molding cavity of a two-piece mold through a filling nozzle in flow communication...
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6576167 |
Methods and apparatus for eyeglass curing using ultraviolet light and improved cooling
Method and apparatus for making and coating a plastic lens. Oxygen barrier containing photoinitiator is used to cure incompletely cured lens portions. Radiation pulses are used to control lens...
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6564587 |
Method of producing an optical fiber by gathering material from a molten bath
A starting material for producing optical fibers contains metal halides. The refractive index of the optical fiber formed from the starting marterial is predeterminable by adjusting a composite of...
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6533968 |
Structure and method for molding optical disks
A method for molding an optical disk comprises: applying a thermally insulative insert coating to at least one thermally insulative mold insert to provide at least one coated mold insert having a...
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6533426 |
Method of centrifugally casting a parabolic membrane mirror having a shape-restorative force
A method for fabricating an optical quality, free-standing, compliant parabolic membrane mirror using an inverted parabolic mandrel created by rotating a liquid confined to a cylindrical polymer...
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6517749 |
Method of producing a disc and a disc obtained by the method
A method of producing a disc having at least one substrate and at least one information layer on the substrate, the method includes bringing the substrate in parallel relationship with a stamper...
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6383419 |
Method for cast molding toric contact lenses
Methods of cast molding toric contact lenses are provided including the steps of providing a first contact lens mold section; providing a molding apparatus and an insert tool adapted to be fixed to...
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6277309 |
Reflow refinishing for compact discs
A process and device for resurfacing damaged compact discs by melting a thin layer of the optical surface of said compact disc so that it reflows and fills any scratches or other imperfections. The...
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6258453 |
Thermoplastic composite materials made by rotational shear
A composite with a thermoplastic matrix and fiber reinforcement is made by rotation of an exit die about a roving of continuous fiber in the presence of a thermoplastic melt. The rotation causes...
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6210609 |
Method of manufacturing optical recording medium
In the method of manufacturing an optical recording medium according to the present invention, when an optical recording medium having at least first and second minute concave and convex surfaces...
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6136234 |
Process for fabricating a gradient refractive-index plastic rod using centrifugal diffusing polymerization method
A gradient refractive-index plastic rod is prepared by prepolymerizing a mixture containing a first monomer and at least a component selected from a second monomer and a non-reactive dopant sealed...
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6071441 |
Method of manufacturing distributed refractive index optical fiber
A cylindrical base material having an outer and inner at least two layer structure is produced by using a cylindrical molded body made of a low-refractive-index material as a mold, and forming at...
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6054069 |
Method of manufacturing a preform for a refractive index distributed type plastic optical fiber
A preform having a core and a cladding portion is prepared for a refractive index-distributed type plastic optical fiber. The fiber obtained has a large difference in refractive index between the...
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5922251 |
Method of manufacturing plastic lenses
The present invention provides a method of manufacturing plastic lenses of urethane type resin having no or very little optical strain by the casting polymerization method. In the casting...
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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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5891371 |
Interactive control method for packaging control of time sensitive products
An interactive control system for controlling the automatic packaging of contact lenses in a contact lens fabrication facility, the interactive control system consisting of a first robot device for...
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5882553 |
Multi-color lens assembly injection molding process and apparatus
A multi-colored lens assembly is produced in a multi-station injection molding apparatus having non-indexing ejector halves and indexing cover halves. Material is shot on an unexposed illumination...
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5882556 |
Method of preparing photochromic article
A process for preparing a cross-linked polymeric article, which process includes: providing a cross-linkable polymeric casting composition; and a photochromic composition; subjecting the...
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5846457 |
Light filtering contact lens method
The invention relates to a light-absorbing contact lens and process for preparing same. A contact lens is tinted with colorants which provide desired spectral transmittance characteristics over the...
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5762837 |
Intraocular lenses and methods for making same
New intraocular lenses and methods for producing such lenses. In one embodiment, the intraocular lens includes an optic; and at least one fixation member, e.g., haptic, secured to and extending...
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5756013 |
Method of molding a synthetic resin layered lens for a vehicle headlight
A synthetic resin layered lens for a vehicle lighting device in which an upper lens layer is disposed on a lower lens layer thereby forming a layered lens of integral construction. The lower lens...
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5743980 |
Method of fabricating an optical retardation film
A method of fabricating an optical retardation film having single axis crystal. A polymer material such as polyvinyl alcohol, polystyrene, polycarbonate, or poly methylmethacrylate dissolved in an...
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5733585 |
Apparatus for rotationally aligning a feature of an optical tool with a gate in an injection molding apparatus
A selectively, rotatably adjustable riser pin for aligning a predetermined characteristic on an asymmetrical mold surface with the gate of an injection molding machine for enhanced flow dynamics of...
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5733483 |
Method for formation of on-site coated and tinted optical elements
A method and apparatus for forming on-site tinted and coated optical elements from a mold having a polymer release layer; an optical coating, such as an anti-reflective coating; a coupling agent...
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5705200 |
Multiaxis rotational molding apparatus
A method of continuously forming an integrally molded structure in a multiaxis rotational molding operation includes the steps of rotating a multisection mold assembly about at least three axes. A...
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5700404 |
Process and device for casting a large-area crystalline salt body
A process and device for producing an optically pure polycrystalline salt body by melting a starting material for the salt and then introducing the melted material into a casting mould having a...
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5688447 |
Mass production method for fabricating multi-layer CDs
An optical disk records digital information in optically-reflective layers that each vary in thickness between constructive interference of a monochromatic light and destructive interference of the...
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5635114 |
Method of making thin film optical storage media
An optical disk records digital information in optically-reflective layers that each vary in thickness between constructive interference of a monochromatic light and destructive interference of the...
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5629800 |
Gradial zone lens and method of fabrication
Diffractive lenses having gradial zones (62, 70, 78, 90, 98, 106, 114) are formed by separately, sequentially spin casting and polymerizing successive radial zones of the lens to produce optical...
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5611968 |
Method of making intraocular lenses
New intraocular lenses and methods for producing such lenses. In one embodiment, the intraocular lens includes an optic; and at least one fixation member, e.g., haptic, secured to and extending...
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5549855 |
Optical element molding method
It is an object of this invention to provide an optical element molding method capable of correcting local processing errors in an optical element without increasing the size of an apparatus or...
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5503780 |
Multiaxis rotational molding method
A method of continuously forming an integrally molded structure in a multiaxis rotational molding operation includes the steps of rotating a multisection mold assembly about at least three axes. A...
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5488763 |
Method for making a mold for a lens of single lens glasses having two focal axes
A method for making a mold for forming a lens for single lens glasses having two focal axes is provided. The mold consists of a male mold and a female mold. The male mold is made from portions of...
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5468324 |
Spin-on and peel polymer film method of data recording duplication and micro-structure fabrication
An embodiment of the present invention is a process in which a polymer solution is spin coated onto a master data recording disk, such as glass substrate with photoresist images, before separating....
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5413743 |
Method of making a lamp assembly
A lamp assembly having a plastic housing and a plastic lens is molded in a rotary transfer molding machine having upper and lower mateable housing dies and upper and lower mateable lens dies in...
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5378412 |
Method of edging a contact lens or lens blank
A method of edging a contact lens secured in a mold member includes removing a peripheral edge section of the contact lens by circumferentially cutting the edge thereof at an angle less than 90°...
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5332535 |
Method of fabricating a dielectric multilayer filter
A dielectric multilayer filter applicable to optical communication systems is disclosed, as is a fabrication method therefor, and an optical element incorporating the same. The disclosed dielectric...
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5316701 |
Multiaxis rotational molding process
A method of continuously forming an integrally molded structure in a multiaxis rotational molding operation including the steps of rotating a multimold section mold assembly about at least three...
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5300262 |
Process of spincasting a compound contact lens
The process of reproducibly making a wholly spuncasted, non-truncated, ballasted soft contact lens containing a compound anterior surface. The process comprises spincasting a polymer-forming, lens...
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