GB466620A - Improvements relating to lenses for spectacles and the like - Google Patents
Improvements relating to lenses for spectacles and the likeInfo
- Publication number
- GB466620A GB466620A GB415236A GB415236A GB466620A GB 466620 A GB466620 A GB 466620A GB 415236 A GB415236 A GB 415236A GB 415236 A GB415236 A GB 415236A GB 466620 A GB466620 A GB 466620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- eye
- lenses
- curve
- temple side
- 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
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)
Abstract
466,620. Spectacle lenses. WINGATE. G. H., and HAMBLIN, Ltd., T. Feb. 11, 1936, No. 4152. [Class 97 (i)] A spectacle lens particularly intended to be used in cases of aphakia comprises a portion 1 having a power of + 8D. or more and of meniscus shape formed about a spherical curve X whose centre approximately coincides with the centre of rotation of the eye, and a portion 2 of different curvature enabling the lens to be carried in a normal frame or giving it a normal outline when worn. The portion 2 may, as in Fig. 5, be inclined forwardly so as to bring the effective part of the lens nearer to the eye. Fig. 6 shows a form in which the lens is extended on the temple side T, the field covering substantially the whole lens. If a rim is used in mounting this form, it is bent back on the temple side to suit the margin of the lens. The radius of the curve X is from 22 to 28 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB415236A GB466620A (en) | 1936-02-11 | 1936-02-11 | Improvements relating to lenses for spectacles and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB415236A GB466620A (en) | 1936-02-11 | 1936-02-11 | Improvements relating to lenses for spectacles and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB466620A true GB466620A (en) | 1937-06-01 |
Family
ID=9771712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB415236A Expired GB466620A (en) | 1936-02-11 | 1936-02-11 | Improvements relating to lenses for spectacles and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB466620A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518099A (en) * | 1945-04-07 | 1950-08-08 | American Optical Corp | Lenticular cataract lens |
| US2517609A (en) * | 1945-08-02 | 1950-08-08 | American Optical Corp | Multifocal aphakic lens |
| US2543949A (en) * | 1949-11-04 | 1951-03-06 | Wootten George Bates | Ophthalmic lens |
| WO2020157182A1 (en) * | 2019-01-30 | 2020-08-06 | Carl Zeiss Vision International Gmbh | Method of manufacturing a spectacle lens, finished uncut spectacle lens and semi-finished lens blank |
-
1936
- 1936-02-11 GB GB415236A patent/GB466620A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518099A (en) * | 1945-04-07 | 1950-08-08 | American Optical Corp | Lenticular cataract lens |
| US2517609A (en) * | 1945-08-02 | 1950-08-08 | American Optical Corp | Multifocal aphakic lens |
| US2543949A (en) * | 1949-11-04 | 1951-03-06 | Wootten George Bates | Ophthalmic lens |
| WO2020157182A1 (en) * | 2019-01-30 | 2020-08-06 | Carl Zeiss Vision International Gmbh | Method of manufacturing a spectacle lens, finished uncut spectacle lens and semi-finished lens blank |
| US11307436B2 (en) | 2019-01-30 | 2022-04-19 | Carl Zeiss Vision International Gmbh | Method of manufacturing a spectacle lens, finished uncut spectacle lens and semi-finished lens blank |
| EP3918413B1 (en) | 2019-01-30 | 2023-06-07 | Carl Zeiss Vision International GmbH | Method of manufacturing a spectacle lens, finished uncut spectacle lens and semi-finished lens blank |
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