DE312368C - - Google Patents
Info
- Publication number
- DE312368C DE312368C DENDAT312368D DE312368DA DE312368C DE 312368 C DE312368 C DE 312368C DE NDAT312368 D DENDAT312368 D DE NDAT312368D DE 312368D A DE312368D A DE 312368DA DE 312368 C DE312368 C DE 312368C
- Authority
- DE
- Germany
- Prior art keywords
- lens
- flint
- crown
- meniscus
- eye
- 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 claims description 8
- 230000005499 meniscus Effects 0.000 claims description 2
- 238000012937 correction Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 210000000720 eyelash Anatomy 0.000 description 1
- 239000005308 flint glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000000007 visual effect Effects 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
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE312368C true DE312368C (enrdf_load_stackoverflow) |
Family
ID=565299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT312368D Active DE312368C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE312368C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2517609A (en) * | 1945-08-02 | 1950-08-08 | American Optical Corp | Multifocal aphakic lens |
-
0
- DE DENDAT312368D patent/DE312368C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2517609A (en) * | 1945-08-02 | 1950-08-08 | American Optical Corp | Multifocal aphakic lens |
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