Ophthalmic lens method
January 21, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3322598 Direct casting method for producing low-stress glass/plastic composite lenses Lightweight laminated photochromic lenses Apparatus for molding optical plastic lenses of the standard and bifocal type Casting gasket assembly and method for casting lenses therefrom Wrinkle prevention in glass/plastic composite lenses Process and device for covering a lens preform with a protective sheet Method of making photochromic lenses Laminated glass lenses Molding a glass-plastic composite lens Inventors
AssigneeApplicationNo. 822863 filed on 01/21/1992US Classes:264/1.32, Lens156/212, By bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith264/1.7, Composite or multiple layer264/2.7, Reshaping or treatment of an optical preform264/135, Molding material against and uniting to the coated or impregnated workpiece264/163, Simultaneous severing and shaping, or severing while work remains on shaping surface264/265, Conditioning or treatment of preform264/313, Utilizing a flexible, deformable, or destructable molding surface or material425/808LENS MOLDExaminersPrimary: Silbaugh, Jan H.Assistant: Vargot, Mathieu D. Attorney, Agent or FirmInternational ClassB29D 011/00AbstractA 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 as to fit snugly and be sealed from the ambient. A monomeric formulation is flowed onto the adhesive layer and cured to form a laminated lens blank.Field of SearchWith light filtering meansWith lens protective layers Methods OPTICAL ARTICLE SHAPING OR TREATING Composite or multiple layer Reshaping or treatment of an optical preform Molding material against and uniting to the coated or impregnated workpiece Simultaneous severing and shaping, or severing while work remains on shaping surface Conditioning or treatment of preform Utilizing a flexible, deformable, or destructable molding surface or material Before final assembly; e.g., to cure lamina, etc. Subsequent to assembly of laminae By bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith LENS MOLD | |
