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Class Information
Number: 351/172
Name: Optics: eye examining, vision testing and correcting > Spectacles and eyeglasses > Ophthalmic lenses or blanks > Multifocal > Multiple elements
Description: Subject matter wherein multiple lens elements of different refractive indices have their adjacent surfaces joined together to provide a unitary multifocal lens that has, for example, a long vision and a reading section.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7553019 |
Variable focus spectacles |
Jun. 30, 2009 |
| 7475985 |
System, apparatus, and method for correcting vision using an electro-active lens |
Jan. 13, 2009 |
| 7472993 |
Bifocal plastic lens |
Jan. 6, 2009 |
| 7455404 |
Ophthalmic lens with multiple phase plates |
Nov. 25, 2008 |
| 7377639 |
Laminated functional wafer for plastic optical elements |
May. 27, 2008 |
| 7338161 |
Optical accommodative compensation system |
Mar. 4, 2008 |
| 7325922 |
Adjustable focus eyeglasses |
Feb. 5, 2008 |
| 7322694 |
Hybrid contact lens system and method |
Jan. 29, 2008 |
| 7278735 |
Single focus compound lens and mold |
Oct. 9, 2007 |
| 7232219 |
Viewing apparatus for simulating impairment |
Jun. 19, 2007 |
| 7232217 |
Prescription lenses and method of making |
Jun. 19, 2007 |
| 7192133 |
Pair of sunglasses with farsighted lenses |
Mar. 20, 2007 |
| 7077985 |
Injection molding of lens |
Jul. 18, 2006 |
| 7021762 |
Multifocal spectacle lens |
Apr. 4, 2006 |
| 6715876 |
Lens arrangement with fluid cell and prescriptive element |
Apr. 6, 2004 |
| 6709104 |
Eyeglasses and method of making same for the treatment of low-vision |
Mar. 23, 2004 |
| 6478422 |
Single bifocal custom shooters glasses |
Nov. 12, 2002 |
| 6322215 |
Non-progressive trifocal ophthalmic lens |
Nov. 27, 2001 |
| 6288846 |
Variable focal-length lens assembly |
Sep. 11, 2001 |
| 6260967 |
Progressive lens |
Jul. 17, 2001 |
| 6256152 |
Laminate wafers |
Jul. 3, 2001 |
| 6242065 |
Lens blanks for ophthalmic elements |
Jun. 5, 2001 |
| 6196684 |
High refractive index glasses, multifocal corrective lenses containing same |
Mar. 6, 2001 |
| 6170952 |
Adherent corrective lenses and eyeglasses embodying the same |
Jan. 9, 2001 |
| 6120148 |
Diffractive lens |
Sep. 19, 2000 |
| 6086203 |
Progressive addition lenses |
Jul. 11, 2000 |
| 6046123 |
Glasses with a high refractive index and their use as segments of multifocal corrective lenses |
Apr. 4, 2000 |
| 6042229 |
Detachable portion for a hard contact lens and hard contact lens composite employing the same |
Mar. 28, 2000 |
| 6015213 |
Ring for a hard contact lens and hard contact lens composite employing such a ring |
Jan. 18, 2000 |
| 5907386 |
Method of manufacturing a progressive optic |
May. 25, 1999 |
| 5861934 |
Refractive index gradient lens |
Jan. 19, 1999 |
| 5808721 |
Ophthalmic lens wafers and receiver for registering such wafers |
Sep. 15, 1998 |
| 5793467 |
Semi-permanent reading lenses for sunglasses |
Aug. 11, 1998 |
| 5644374 |
Variable focus type eyesight correcting apparatus |
Jul. 1, 1997 |
| 5548353 |
Ophthalmic glass of high refractive index |
Aug. 20, 1996 |
| 5512344 |
Ophthalmic lens manufacture |
Apr. 30, 1996 |
| 5478824 |
Adherent corrective lens |
Dec. 26, 1995 |
| 5410375 |
Multifocal birefrigent lens with adjusted birefringence |
Apr. 25, 1995 |
| 5381190 |
Low vision lens assembly with adhesive coupling ring |
Jan. 10, 1995 |
| 5351100 |
Glass multifocal ophthalmic lens with polarizing element and method of making |
Sep. 27, 1994 |
| 5349393 |
Light-transmitting elastomeric suction lens |
Sep. 20, 1994 |
| 5323192 |
Method and packaging system for facilitating fabrication of laminated lenses |
Jun. 21, 1994 |
| 5305028 |
Multifocal lens provided with progressive focal segment |
Apr. 19, 1994 |
| 5246634 |
Process for producing intraocular lens |
Sep. 21, 1993 |
| 5223862 |
High-index, organic lens member |
Jun. 29, 1993 |
| 5162826 |
High index ophthalmic glasses |
Nov. 10, 1992 |
| 5149181 |
Lens wafer, laminate lens and method of fabrication thereof |
Sep. 22, 1992 |
| 5129718 |
Multi-focal diffractive ophthalmic lenses |
Jul. 14, 1992 |
| 4969729 |
Composite plastic lens having a positioned optical axis and method of making the same |
Nov. 13, 1990 |
| 4955712 |
Multifocal lens |
Sep. 11, 1990 |
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