IT8149533A0 - Perfezionamento nelle lenti oftalmiche per correzione di presbiopia con potere ottico progressivo - Google Patents
Perfezionamento nelle lenti oftalmiche per correzione di presbiopia con potere ottico progressivoInfo
- Publication number
- IT8149533A0 IT8149533A0 IT8149533A IT4953381A IT8149533A0 IT 8149533 A0 IT8149533 A0 IT 8149533A0 IT 8149533 A IT8149533 A IT 8149533A IT 4953381 A IT4953381 A IT 4953381A IT 8149533 A0 IT8149533 A0 IT 8149533A0
- Authority
- IT
- Italy
- Prior art keywords
- improvement
- optical power
- ophthalmic lenses
- progressive optical
- presbyopia correction
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
- 201000010041 presbyopia Diseases 0.000 title 1
- 230000000750 progressive effect Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
- G02C7/061—Spectacle lenses with progressively varying focal power
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23275581A | 1981-02-09 | 1981-02-09 | |
US24613981A | 1981-04-02 | 1981-04-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8149533A0 true IT8149533A0 (it) | 1981-10-21 |
IT1142911B IT1142911B (it) | 1986-10-15 |
Family
ID=26926301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49533/81A IT1142911B (it) | 1981-02-09 | 1981-10-21 | Perfezionamento nelle lenti oftalmi che per correzione di presbiopia con potere ottico progressivo |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3116524C2 (it) |
IT (1) | IT1142911B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3433916C2 (de) * | 1984-09-15 | 1986-10-16 | Optische Werke G. Rodenstock, 8000 München | Brillenglas für eine Halbbrille |
US4838675A (en) * | 1987-06-19 | 1989-06-13 | Sola International Holdings, Ltd. | Method for improving progressive lens designs and resulting article |
DE3739974A1 (de) * | 1987-11-25 | 1989-06-08 | Rodenstock Optik G | Progressives brillenglas |
FR2661519B1 (fr) * | 1990-04-25 | 1992-07-31 | Essilor Int | Procede pour faciliter la realisation d'une lentille ophtalmique progressive, et lentille(s) ophtalmique(s) progressive(s) correspondante(s). |
DE69113127T2 (de) * | 1990-06-13 | 1996-03-21 | Seiko Epson Corp | Brillenlinse. |
US5285222A (en) * | 1992-11-20 | 1994-02-08 | Gentex Optics, Inc. | Progressive lens series |
US5327181A (en) * | 1993-01-12 | 1994-07-05 | Gentex Optics, Inc. | Progressive lens for specialty and occupational use |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2109474A (en) * | 1931-12-07 | 1938-03-01 | Evans Charles Ernest | Spectacle lens |
US2878721A (en) * | 1954-02-03 | 1959-03-24 | Farrand Optical Co Inc | Multifocal ophthalmic lenses |
BE755907A (fr) * | 1969-09-11 | 1971-02-15 | Lunetiers | Lentilles a puissance focale progressive |
NL7107504A (it) * | 1971-06-01 | 1972-12-05 | ||
NL168626C (nl) * | 1973-08-16 | 1982-04-16 | American Optical Corp | Lens voor een bril met over het oppervlak varierende sterkte. |
DE2814916C3 (de) * | 1978-04-06 | 1982-01-07 | Optische Werke G. Rodenstock, 8000 München | Brillenglas mit einem zwischen Fernteil und Nahteil liegenden Progressionsbereich |
EP0027339A3 (en) * | 1979-10-11 | 1981-05-06 | U.K. Wiseman Limited | Progressive power ophthalmic lenses |
-
1981
- 1981-04-25 DE DE3116524A patent/DE3116524C2/de not_active Expired - Lifetime
- 1981-10-21 IT IT49533/81A patent/IT1142911B/it active
Also Published As
Publication number | Publication date |
---|---|
DE3116524C2 (de) | 1993-06-24 |
IT1142911B (it) | 1986-10-15 |
DE3116524A1 (de) | 1982-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19951031 |