FR2489971B1 - - Google Patents
Info
- Publication number
- FR2489971B1 FR2489971B1 FR8019481A FR8019481A FR2489971B1 FR 2489971 B1 FR2489971 B1 FR 2489971B1 FR 8019481 A FR8019481 A FR 8019481A FR 8019481 A FR8019481 A FR 8019481A FR 2489971 B1 FR2489971 B1 FR 2489971B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8019481A FR2489971A1 (fr) | 1980-09-08 | 1980-09-08 | Verre de lunette ophtalmique a variation de puissance frontale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8019481A FR2489971A1 (fr) | 1980-09-08 | 1980-09-08 | Verre de lunette ophtalmique a variation de puissance frontale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2489971A1 FR2489971A1 (fr) | 1982-03-12 |
| FR2489971B1 true FR2489971B1 (OSRAM) | 1982-10-08 |
Family
ID=9245785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8019481A Granted FR2489971A1 (fr) | 1980-09-08 | 1980-09-08 | Verre de lunette ophtalmique a variation de puissance frontale |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2489971A1 (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2908191B1 (fr) * | 2006-11-07 | 2008-12-26 | Essilor Int | Lentille ophtalmique |
| FR2968095B1 (fr) * | 2010-11-29 | 2012-12-21 | Essilor Int | Element de verre ophtalmique progressif |
-
1980
- 1980-09-08 FR FR8019481A patent/FR2489971A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2489971A1 (fr) | 1982-03-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| AR | Application made for restoration | ||
| BR | Restoration of rights | ||
| ST | Notification of lapse |