Matches 1 - 50 out of 78 1 2 >
Match Document Document Title
7631969 Combined spectacle lens, auxiliary lens, and method of edging lenses  
A combined spectacle lens including a combination of a basic lens and an auxiliary lens, the basic lens formed with a progressive-power surface having a first power portion having a power for...
7553019 Variable focus spectacles  
The invention concerns variable focus spectacles in which the electro-wetting effect is utilized to provide a manually or automatically variable focal length. The variable focus spectacles ( 200 )...
7472993 Bifocal plastic lens  
A bifocal plastic lens having a bench lens and a small lens with different refractive powers. The small lens not protruding above a surface of the bench lens, a boundary between the constituent...
7455404 Ophthalmic lens with multiple phase plates  
An ophthalmic lens for providing a plurality of foci has an optic comprising an anterior surface, a posterior surface, and an optical axis. The optic has a first region and a second region. The...
7377639 Laminated functional wafer for plastic optical elements  
A functional wafer of the present invention is disclosed to solve manufacturing difficulties involved in the production of optical elements such as polycarbonate ophthalmic lenses. The functional...
7338161 Optical accommodative compensation system  
The optical system presents accommodation compensation, the system including in combination two multifocal lenses, one of them being an aperture lens and the other a field lens.
7325922 Adjustable focus eyeglasses  
Adjustable focus eyeglasses with two lens units, each lens unit having two lens elements. The eyeglasses are focused by adjusting the position of at least one of the two lens elements relative to...
7322694 Hybrid contact lens system and method  
A hybrid contact lens comprises a central zone comprising a substantially rigid, gas permeable material having a DK of at least 30, a relatively soft peripheral zone and an intermediate zone...
7278735 Single focus compound lens and mold  
Disclosed is a single focus compound lens and a mold for manufacturing the single focus compound lens, where the single focus compound lens has a reading far point diopter lens and a reading near...
7232219 Viewing apparatus for simulating impairment  
The present invention provides a viewing apparatus for simulating visual impairment. In one embodiment, the apparatus includes a frame defining a viewing area and first and second lenses supported...
7232217 Prescription lenses and method of making  
A lens unit with at least two lens elements. The first of the two lens elements has two surfaces providing a special varying lens thickness as a function of position across the lens surfaces, and...
7192133 Pair of sunglasses with farsighted lenses  
A pair of sunglasses with farsighted lenses includes a main body having a frame surrounding two separate areas. Each of the areas is occupied by a sunlight glass having an opening cut at its lower...
7077985 Injection molding of lens  
A flat or curved photochromic laminate structure and a plastic photochromic lens blank can be produced in a simple and efficient manner from relatively low-cost polymeric sheet materials. These...
7021762 Multifocal spectacle lens  
There is provided a multifocal spectacle lens having a front surface and a back surface each of the front surface and the back surface is formed as a multifocal surface or a progressive-power...
6715876 Lens arrangement with fluid cell and prescriptive element  
A lens arrangement has a corrective or prescription lens. The prescription lens is adjacent to a fluid cell. The fluid cell has a flexible membrane and a base. Fluid is pumped into or out of the...
6709104 Eyeglasses and method of making same for the treatment of low-vision  
Eyeglasses for the treatment of low-vision and macular degeneration include a frame for supporting lenses on an occipital dexter side and an occipital sinister side. An occipital dexter lens has a...
6478422 Single bifocal custom shooters glasses  
The present invention includes a pair of glasses to be worn by a shooter using a scoped rifle or pistol where correction is needed by the shooter in order to obtain a clear site picture in the...
6322215 Non-progressive trifocal ophthalmic lens  
This invention relates to a novel, non-progressive trifocal ophthalmic lens comprising distance-vision, near-vision and intermediate-vision optic fields. The non-progressive element of the trifocal...
6288846 Variable focal-length lens assembly  
Switchable optical devices are made of transparent optical elements having surfaces separated by small distances, typically less than a few hundred micrometers. The transparent elements contain...
6260967 Progressive lens  
A progressive ophthalmic lens element having a front surface that includes an upper viewing zone having a surface power suitable for distance vision, a lower viewing zone having a surface power...
6256152 Laminate wafers  
A laminate optical article including a first outer layer; a second outer layer; and an inner layer positioned between said first and second outer layers, the inner layer providing a desirable...
6242065 Lens blanks for ophthalmic elements  
A polymeric front optical element blank is provided which may be laminated to a rear optical element blank. The polymeric front blank comprises an optical element having an exterior convex surface...
6170952 Adherent corrective lenses and eyeglasses embodying the same  
The present invention is directed to a magnifying and/or corrective lens or optical element that may be removably adhered to a plano lens, such as the pane of a of a pair of spectacles or...
6120148 Diffractive lens  
A multifocal diffractive lens includes at least two annular zone lenses. Provided between adjacent annular zone lenses is an optical step. Each annular zone lens exhibits a refractive power profile...
6086203 Progressive addition lenses  
The invention provides progressive addition lenses in which lens unwanted astigmatism is reduced and channel width through the intermediate and near vision zones is increased as compared to...
6046123 Glasses with a high refractive index and their use as segments of multifocal corrective lenses  
The invention concerns glasses characterized by the fact that they have a refractive index higher than 1.740; a dilatation coefficient α, between 25 and 300° C., between 65 and 70×10 -7 /°C.;...
6042229 Detachable portion for a hard contact lens and hard contact lens composite employing the same  
A weight for a hard contact lens, which can be detachably attached to the peripheral edge of a hard contact lens and which has a groove of a shape corresponding to the peripheral edge of the hard...
6015213 Ring for a hard contact lens and hard contact lens composite employing such a ring  
A ring for a hard contact lens, which can be detachably attached to the peripheral edge of a hard contact lens and which has a groove of a shape corresponding to the peripheral edge of the hard...
5907386 Method of manufacturing a progressive optic  
A progressive optic has an optical preform wherein the radius of curvature of the surface is altered by forming discrete spherical portions across the surface. A thin intermediate layer, having a...
5861934 Refractive index gradient lens  
An optical product such as an optical lens, or semi-finished lens blank is provided comprising a composite of at least three different and separately applied layers, each layer having a different...
5808721 Ophthalmic lens wafers and receiver for registering such wafers  
Ophthalmic lens wafers for forming a composite lens are provided wherein each front lens wafer has a front registration pattern formed on its peripheral edge, and each back lens wafer has a back...
5793467 Semi-permanent reading lenses for sunglasses  
A plastic reading lens using a microstructure to provide reading correction can be semi-permanently attached to a non-prescription sunglass using a water-soluble adhesive. The lens may be removed...
5644374 Variable focus type eyesight correcting apparatus  
A variable focus type eyesight correcting apparatus in which a plurality of optical lenses are superimposed on each other and in which a refracting power is changed by relatively sliding the lenses...
5512344 Ophthalmic lens manufacture  
A button for forming a segment of a multifocal lens the button comprising a first portion composed of a lead oxide-containing glass, a second portion composed of a glass which contains...
5478824 Adherent corrective lens  
A corrective lens that is removably adherent to, and substantially in contact with, a pane of a pair of spectacles without the use of a mechanical retention device, and that has at least one curved...
5410375 Multifocal birefrigent lens with adjusted birefringence  
Described is a multifocal bi-refringent lens system with at least two different refractive powers which are necessary for optical applications. All lenses in the lens system are made from a...
5381190 Low vision lens assembly with adhesive coupling ring  
A low vision lens for attachment to the front surface of an ophthalmic lens by an adhesive ring coupling carried by the lens, a method for making such a lens assembly, and a method for attaching...
5351100 Glass multifocal ophthalmic lens with polarizing element and method of making  
The present invention includes a glass multifocal light polarizing ophthalmic lens having a glass multifocal lens portion with a multifocal element fused to a convex outer surface of the multifocal...
5349393 Light-transmitting elastomeric suction lens  
An ophthalmic lens is disclosed for changing the focal point of a light-transmitting element. Formed from a light-transmitting silicone, the lens has a concave surface for creating suction when...
5323192 Method and packaging system for facilitating fabrication of laminated lenses  
Fabrication of an eyeglass lens to meet a specific ophthalmic prescription is simplified by arranging back lens wafers of different sphere powers and cylinder corrections in order of the through...
5305028 Multifocal lens provided with progressive focal segment  
A multifocal lens has a main lens with a far vision surface refracting power sphere (F) and a near vision sphere (N) and a progressive focal area (P) or an intermediate vision sphere (I), a...
5246634 Process 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...
5223862 High-index, organic lens member  
An ophthalmic lens embodying an organic plastic lens member having a refractive index of at least 1.56 and being the cured product of a monomeric formulation. The formulation contains a resin...
5162826 High index ophthalmic glasses  
This invention relates to the production of glasses exhibiting a refractive index between about 1.66-1.81, a softening point between about 625°-675° C., a strain point between about 455°-490°...
5149181 Lens wafer, laminate lens and method of fabrication thereof  
Lens wafers which are bonded together with adhesive to form a laminate lens for use in eyeglasses or for other purposes enables immediate visual detection of the installation of an unlaminated lens...
5129718 Multi-focal diffractive ophthalmic lenses  
An ophthalmic lens exhibiting diffractive power has a plurality of diffractive zones and smooth surfaces. The zones are arranged such that R 0 2 does not equal R 1 2 -R 0 2 where R 0 is the...
4969729 Composite plastic lens having a positioned optical axis and method of making the same  
The composite plastic lens includes an anterior plastic lens having a first corrective feature and a posterior plastic lens having a second corrective feature. One of the lenses, preferably the...
4955712 Multifocal lens  
A multifocal lens is described with a main lens designed for distance vision and a segment designed for near vision. The lens in accordance with the present invention is characterized by the fact...
4944584 Plastic multifocal point spherical lens  
A plastic multifocal point spherical lens comprising a unitary structure of (A) a first synthetic resin layer having a fixed refractive index, (B) a second synthetic resin layer having a...
4892403 Composite plastic lens and method of making the same  
The composite plastic lens includes an anterior plastic lens having a first corrective feature and a posterior plastic lens having a second corrective feature. The anterior and posterior lenses are...
Matches 1 - 50 out of 78 1 2 >