GB122363A - Improvements in or relating to Eyeglasses. - Google Patents
Improvements in or relating to Eyeglasses.Info
- Publication number
- GB122363A GB122363A GB1166318A GB1166318A GB122363A GB 122363 A GB122363 A GB 122363A GB 1166318 A GB1166318 A GB 1166318A GB 1166318 A GB1166318 A GB 1166318A GB 122363 A GB122363 A GB 122363A
- Authority
- GB
- United Kingdom
- Prior art keywords
- eyeglasses
- lens
- relating
- jones
- oblong
- 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
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
122,363. Jones, F. July 16, 1918 Spectacle lenses. - Eyeglasses are constructed of elliptical, oblong, or egg shaped lenses leaving the major axis vertical, as shown for example in Fig. 1. For ordinary long sight the upper portion a of each lens may be provided with an aperture, plain or coloured glass, or a neutralizing lens, and this portion may be ground plane and then polished.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1166318A GB122363A (en) | 1918-07-16 | 1918-07-16 | Improvements in or relating to Eyeglasses. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1166318A GB122363A (en) | 1918-07-16 | 1918-07-16 | Improvements in or relating to Eyeglasses. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB122363A true GB122363A (en) | 1919-01-23 |
Family
ID=32345121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1166318A Expired GB122363A (en) | 1918-07-16 | 1918-07-16 | Improvements in or relating to Eyeglasses. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB122363A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4690524A (en) * | 1984-02-17 | 1987-09-01 | Carl-Zeiss-Stiftung | Multifocal spectacle lens having a large near-vision part |
-
1918
- 1918-07-16 GB GB1166318A patent/GB122363A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4690524A (en) * | 1984-02-17 | 1987-09-01 | Carl-Zeiss-Stiftung | Multifocal spectacle lens having a large near-vision part |
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