DE212572C - - Google Patents
Info
- Publication number
- DE212572C DE212572C DENDAT212572D DE212572DA DE212572C DE 212572 C DE212572 C DE 212572C DE NDAT212572 D DENDAT212572 D DE NDAT212572D DE 212572D A DE212572D A DE 212572DA DE 212572 C DE212572 C DE 212572C
- Authority
- DE
- Germany
- Prior art keywords
- lens
- glasses
- glass
- eye
- lenses
- 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.)
- Active
Links
- 239000011521 glass Substances 0.000 description 18
- 239000005357 flat glass Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 244000283070 Abies balsamea Species 0.000 description 1
- 235000007173 Abies balsamea Nutrition 0.000 description 1
- 239000004858 Canada balsam Substances 0.000 description 1
- 241000031711 Cytophagaceae Species 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C9/00—Attaching auxiliary optical parts
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE212572C true DE212572C (enExample) |
Family
ID=474302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT212572D Active DE212572C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE212572C (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2642776A (en) * | 1949-12-31 | 1953-06-23 | American Optical Corp | Variable power bifocal lens |
| EP0357848A1 (en) * | 1988-09-05 | 1990-03-14 | William Seal Parker | Low vision eye glasses |
| US6224206B1 (en) | 2000-02-08 | 2001-05-01 | Robert E. Schwartz | Fashion eyeglasses and sunglasses |
| EP1279992A3 (de) * | 2001-07-28 | 2004-12-01 | ESCHENBACH OPTIK GmbH + Co. | Linse zum Einbau in eine Brillenfassung |
-
0
- DE DENDAT212572D patent/DE212572C/de active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2642776A (en) * | 1949-12-31 | 1953-06-23 | American Optical Corp | Variable power bifocal lens |
| EP0357848A1 (en) * | 1988-09-05 | 1990-03-14 | William Seal Parker | Low vision eye glasses |
| US6224206B1 (en) | 2000-02-08 | 2001-05-01 | Robert E. Schwartz | Fashion eyeglasses and sunglasses |
| EP1279992A3 (de) * | 2001-07-28 | 2004-12-01 | ESCHENBACH OPTIK GmbH + Co. | Linse zum Einbau in eine Brillenfassung |
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