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| Number | Title | Issue Date |
| 4002439 | Method of forming an ophthalmic lens for presbyopia and aphakia There is presented a multifocal ophthalmic lens of homogeneous transparent optical material and method and apparatus for forming same, useful for the correction of the refractive error and the accommodative insufficiency or absence of accommodation in pre... | 01/11/1977 |
| 3998531 | Method of making protective optical components A method of making opthalmic lenses is disclosed comprising the steps of forming at least a major body portion of a first lens body from a transparent plastic resinous material having an index of refraction greater than that of crown glass, rough shaping ... | 12/21/1976 |
| 3984506 | Method of forming a composite bifocal contact lens blank A method of forming a fused bifocal contact lens having "no jump" characteristics at all points of the segment line separating the distant vision segment or zone from the near vision zone is disclosed. In one embodiment a cylindrical blank is rotated abou... | 10/05/1976 |
| 3984581 | Method for the production of anti-reflection coatings on optical elements made of transparent organic polymers A method for the production, without thermal treatment, of an anti-reflection coating on surfaces of optical elements of transparent, thermally sensitive material such as organic polymeric plastic material which comprises coating the surface with a layer ... | 10/05/1976 |
| 3966311 | Method of producing photochromic multifocal spectacle lenses A method of producing photochromic multifocal spectacle lenses by fusion of a reading segment with a photochromic major lens portion. The reading segment and the main photochromic portion of the lens are fused together at a temperature which does not adve... | 06/29/1976 |
| 3962505 | Plastic contact lens with magnetic embedded metal ring A block of plastic is provided with a cylindrical well having an axial pillar in its inner portions over which an annular ferrous ring is mounted. A cylindrical plug is inserted in the well along with a mixture of solvent and powder of the same material a... | 06/08/1976 |
| 3951528 | Method of making polymeric contact lens The present application discloses a polymeric plastic material suitable for contact lenses. It is made from a monomer having the formula ##EQU1## wherein n is 2 or 3, in the substantial absence of diunsaturated and polyunsaturated monomers. The mixtu... | 04/20/1976 |
| 3950082 | Ophthalmic lens for presbyopia and aphakia There is presented a multifocal ophthalmic lens of homogeneous transparent optical material useful for the correction of the refractive error and the accommodative insufficiency or absence of accommodation in presbyopia and in aphakia, the lens characteri... | 04/13/1976 |
| 3948007 | Method for working the marginal zones of a lens A lens of a soft and readily damaged material is placed onto a support having a surface whose contour corresponds to the mating contour of the juxtaposed surface of the lens. The support is rotated and the lens is shifted on it until the lens is centered ... | 04/06/1976 |
| 3946982 | Adjustable mold for direct casting of plastic multifocal lenses Apparatus for finish casting of bifocal ophthalmic lenses from plastic material is described. No further surface grinding or polishing of the lens is required. The portion of the bifocal segment of the lens may be adjusted to any desired location relative... | 03/30/1976 |
| 3941858 | Hydrophilic polymers, articles and methods of making same A process for preparing hydrophilic cross-linked polymers and products prepared thereby, said process comprising admixing in a solvent-free system in the presence of a free radical, vinyl polymerization catalyst and reacting a major amount of a water-solu... | 03/02/1976 |
| 3940304 | Method 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 |
| 3937566 | Process for producing contact lenses A process for prescribing and manufacturing contact lenses wherein a first concave curvature is developed on the interior face of the lens in the central optical zone. This concave curvature conforms to a portion of a sphere having a radius equal to the r... | 02/10/1976 |
