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Class 264/1.32 - Lens


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein the polarizing article is a lens or a
No. of patents: 226
Last issue date: 12/20/2011


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NumberTitleIssue Date
5708050Oxygen permeable contact lens having high durable hydrophilic surface and method for producing the same
A hydrophilic oxygen permeable contact lens having a front surface which is not to be in contact with the cornea of a human eye when the contact lens is worn on the human eye, wherein at least the front surface of the contact lens is coated with a hydroph...
01/13/1998
5694195Polyester 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 selected from an allylic ester and/or an acrylic monomer, to...
12/02/1997
5629800Gradial 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 phase differences of 2π between adjacent gradial zones. Dif...
05/13/1997
5618474Method of forming curved surfaces by etching and thermal processing
A smooth contoured structure is formed from a planar surface by etching mesas of equal height into the surface and heat treating the structure to mass transport material above the desired contour to fill in voids below the desired contour. In an alternate...
04/08/1997
5601627Method for molding optical element
There is disclosed a method for molding an optical element, by preparing an upper mold member and a lower mold member for press molding a glass material, heating the mold members together or individually to a predetermined temperature, deforming the glass...
02/11/1997
5486951Gradial 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 phase differences of 2π between adjacent gradial zones. Dif...
01/23/1996
5435818Mold for optical element and a method of molding optical element
A method of molding an optical element numerically analyzes the thermal stress produced on a molded optical element product within a mold in a visco-elastic temperature range or elastic temperature range of an optical element material in a cooling step of...
07/25/1995
5434707Shaped plastic light-polarizing lens and method of making same
Plastic lenses having substantially no optical power and a light-polarizing layer therein are prepared by shaping composite laminate of the light-polarizing layer between opposed sheets of thermoplastic material by heating and pressing the laminate betwee...
07/18/1995
5286419Process for making a light polarizing spectacle lens
A process for making a light polarizing spectacle lens and the light polarizing spectacle lens product. The process includes drying a polarizing film at approximately 140-160° F. for approximately 2-2 hours in order to drive out any transport media from ...
02/15/1994
5246634Process for producing intraocular lens
A process of producing a one-piece intraocular lens in which the lens includes an optical portion and at least one support portion produced integrally with each other, the process including the steps of (a) forming a first polymerized material into a lens...
09/21/1993
5245470Polarizing exposure apparatus using a polarizer and method for fabrication of a polarizing mask by using a polarizing exposure apparatus
The present invention relates to a polarizing exposure apparatus using a polarizer for radiating polarized light on a polarizing mask and a method for a polarizing mask, for improved resolution, by using such a polarizing exposure apparatus. The polarizin...
09/14/1993
5232637Ophthalmic lens method
A method of producing a glass-plastic, laminated, ophthalmic lens structure in a continuous operation. A thin, flexible, plastic adhesive layer is applied to a glass element to form a composite body that is inserted in a cylindrical gasket in such manner ...
08/03/1993
5158718Contact lens casting
Hydrophobic casting moulds are treated with electrical discharge, such as corona discharge, to provide enhanced compatibility with hydrophilic objects introduced into the mould, without interfering with the release properties of the mould. A preferred emb...
10/27/1992
5073313Process for producing low-dust-level polycarbonate molded article
A process for producing a polycarbonate molded article having a low dust level from a polycarbonate resin in the form of a powder or pellets by injection molding using an injection molding machine. The injection molding machine includes a cylinder whose i...
12/17/1991
5028358Method for molding and curing plastic lenses
A method and apparatus for making lenses and a composition of molding material which can be utilized in the method and apparatus for molding lenses of optical quality and an inhibitor for limiting further curing once the desired hardness have been obtaine...
07/02/1991
4999142Method of molding a lens array
A lens array of rod lenses (16), to be used for reading image data in document copier, facsimile, printer, white board scanner, and so on, is made by injection molding of a transparent resin in an already made plastic lens-holding frame (3) having an arra...
03/12/1991
4983335Method for producing transparent plastic article
A transparent plastic article with less internal strain is produced by successively polymerizing a monomer part by part with forming a gel state part between the already polymerized part and the unpolymerized part, or by polymerizing a monomer by means of...
01/08/1991
4978481Process for the encapsulation of preformed substrates by graft copolymerization
A process for encapsulating a preformed polymeric substrate comprises peroxidizing and hydroperoxidizing the surface of said preformed substrate using ozone and then carrying out a crosslinked graft copolymerization of selected ethylenically unsaturated m...
12/18/1990
4923758Polarizing prescription lenses and method of making
Apparatus and a method for adhering a flexible soft polarizing film to a curved surface, such as the convex surface of a prescription eyeglass to be made into a polarizing lens is disclosed. The method involves glass-casting, and preformation of the film ...
05/08/1990
4873029Method 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
4865670Method of making a high quality polarizer
A method and apparatus of applying a polarizing film to a curved lens such as a polarizing prescription lens is disclosed. Mounting of the film on a specialized template allows for convenient drying and rewetting....
09/12/1989
4576766Photochromic compounds and their use in photoreactive lenses
A method is disclosed for manufacturing transparent plastic articles, primarily plano or opthalmic photoreactive lenses, which comprises incorporating fulgides or fulgimides containing an adamantylidene group in plastics casting or moulding compositions o...
03/18/1986
3970362Process of producing polarizing optical devices and product thereof
A laminated optical element is produced by prepositioning a polarizing sheet, which has been coated on both sides with adhesive compatible with the encasing material, in a mold so as to accurately space the polarizing sheet from the inner mold surfaces, i...
07/20/1976
3940304Method of making composite light-polarizing element
A composite light-polarizing lens comprising a light-polarizing element having coated on each surface thereof a layer which enhances adhesion between in situ formed lens components and inhibits migration of lens constituents between said light-polarizing ...
02/24/1976
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