FR959573A - - Google Patents
Info
- Publication number
- FR959573A FR959573A FR959573DA FR959573A FR 959573 A FR959573 A FR 959573A FR 959573D A FR959573D A FR 959573DA FR 959573 A FR959573 A FR 959573A
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/04—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses involving grinding wheels controlled by gearing
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR959573A true FR959573A (fr) | 1950-03-31 |
Family
ID=1561438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR959573D Expired FR959573A (fr) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR959573A (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1145820B (de) * | 1956-10-06 | 1963-03-21 | Saint Gobain | Brillenglas |
| DE1151955B (de) * | 1953-11-25 | 1963-07-25 | & Commerciale Des Ouvriers Lun | Optisches Element mit stetig veraenderlicher Brechkraft |
| DE1158281B (de) * | 1961-08-03 | 1963-11-28 | Wilhelm Peter Soehnges | Cornealkontaktlinse |
| DE1422125B1 (de) * | 1954-10-04 | 1969-09-04 | Akademie D Wissenschaften Zu B | Brillenglas mit verschiedener Dioptrienzahl im Fern-und Nahbereich |
| EP1123776A1 (fr) * | 2000-02-10 | 2001-08-16 | Joisten & Kettenbaum GmbH & Co. KG | Dispositif d'usinage de surfaces |
-
0
- FR FR959573D patent/FR959573A/fr not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1151955B (de) * | 1953-11-25 | 1963-07-25 | & Commerciale Des Ouvriers Lun | Optisches Element mit stetig veraenderlicher Brechkraft |
| DE1422125B1 (de) * | 1954-10-04 | 1969-09-04 | Akademie D Wissenschaften Zu B | Brillenglas mit verschiedener Dioptrienzahl im Fern-und Nahbereich |
| DE1145820B (de) * | 1956-10-06 | 1963-03-21 | Saint Gobain | Brillenglas |
| DE1158281B (de) * | 1961-08-03 | 1963-11-28 | Wilhelm Peter Soehnges | Cornealkontaktlinse |
| EP1123776A1 (fr) * | 2000-02-10 | 2001-08-16 | Joisten & Kettenbaum GmbH & Co. KG | Dispositif d'usinage de surfaces |