FR1294335A - Perfectionnements aux lentilles ophtalmiques multifocales - Google Patents
Perfectionnements aux lentilles ophtalmiques multifocalesInfo
- Publication number
- FR1294335A FR1294335A FR858874A FR858874A FR1294335A FR 1294335 A FR1294335 A FR 1294335A FR 858874 A FR858874 A FR 858874A FR 858874 A FR858874 A FR 858874A FR 1294335 A FR1294335 A FR 1294335A
- Authority
- FR
- France
- Prior art keywords
- enhancements
- ophthalmic lens
- multifocal ophthalmic
- multifocal
- lens
- Prior art date
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR858874A FR1294335A (fr) | 1961-04-15 | 1961-04-15 | Perfectionnements aux lentilles ophtalmiques multifocales |
BE614265A BE614265A (fr) | 1961-04-15 | 1962-02-22 | Perfectionnements aux lentilles ophtalmiques multifocales |
ES0275045A ES275045A1 (es) | 1961-04-15 | 1962-02-28 | Perfeccionamientos en las lentes oftalmicas multifocales |
LU41381D LU41381A1 (fr) | 1961-04-15 | 1962-03-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR858874A FR1294335A (fr) | 1961-04-15 | 1961-04-15 | Perfectionnements aux lentilles ophtalmiques multifocales |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1294335A true FR1294335A (fr) | 1962-05-26 |
Family
ID=8753143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR858874A Expired FR1294335A (fr) | 1961-04-15 | 1961-04-15 | Perfectionnements aux lentilles ophtalmiques multifocales |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE614265A (fr) |
ES (1) | ES275045A1 (fr) |
FR (1) | FR1294335A (fr) |
LU (1) | LU41381A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4247179A (en) * | 1978-01-25 | 1981-01-27 | Carl Zeiss-Stiftung | Multifocal spectacle lens |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4869588A (en) * | 1987-09-14 | 1989-09-26 | Opticorp, Inc. | Non-progressive multifocal ophthamic lenses |
-
1961
- 1961-04-15 FR FR858874A patent/FR1294335A/fr not_active Expired
-
1962
- 1962-02-22 BE BE614265A patent/BE614265A/fr unknown
- 1962-02-28 ES ES0275045A patent/ES275045A1/es not_active Expired
- 1962-03-14 LU LU41381D patent/LU41381A1/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4247179A (en) * | 1978-01-25 | 1981-01-27 | Carl Zeiss-Stiftung | Multifocal spectacle lens |
Also Published As
Publication number | Publication date |
---|---|
BE614265A (fr) | 1962-06-18 |
ES275045A1 (es) | 1962-06-16 |
LU41381A1 (fr) | 1962-05-14 |
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