GB1021827A - Improvements in or relating to a method for determining the outline for cutting a lens for mounting in a lens mount of a spectacle frame - Google Patents
Improvements in or relating to a method for determining the outline for cutting a lens for mounting in a lens mount of a spectacle frameInfo
- Publication number
- GB1021827A GB1021827A GB4713862A GB4713862A GB1021827A GB 1021827 A GB1021827 A GB 1021827A GB 4713862 A GB4713862 A GB 4713862A GB 4713862 A GB4713862 A GB 4713862A GB 1021827 A GB1021827 A GB 1021827A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- outline
- mounting
- wearer
- cutting
- 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
- G02C13/00—Assembling; Repairing; Cleaning
- G02C13/003—Measuring during assembly or fitting of spectacles
- G02C13/005—Measuring geometric parameters required to locate ophtalmic lenses in spectacles frames
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Telescopes (AREA)
Abstract
1,021,827. Cutting spectacle lenses. SOC. DES LUNETIERS, COTTET, POICHET TAGNON & CIE. Dec. 13,1962 [Dec. 15, 1961; Sept. 24,1962], No. 47138/62. Heading G2J. In order to determine the outline which must be cut out of a lens for mounting in a spectacle frame so that the optical centre of the lens is aligned with the pupil of the wearer's eye at the geometrical centre of the frame, lens and frame are superposed, placed in position on the wearer, and then photographed,as in Figs .1 or 2,(not shown) by some means such as a Polaroid (Trade Mark) camera which produces an immediate copy. This is then inspected, using a projector if necessary. Fig. 5 shows an example, in which the uncut lens A is superposed on the mount F whose geometric centre is at C. By measuring the distances a, b between the wearer's pupil B and the point C, the optician can cut the lens correctly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR882081A FR1315937A (en) | 1961-12-15 | 1961-12-15 | Photographic Measurer |
| FR910268A FR82467E (en) | 1962-09-24 | 1962-09-24 | Photographic Measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1021827A true GB1021827A (en) | 1966-03-09 |
Family
ID=26193531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4713862A Expired GB1021827A (en) | 1961-12-15 | 1962-12-13 | Improvements in or relating to a method for determining the outline for cutting a lens for mounting in a lens mount of a spectacle frame |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH402450A (en) |
| DE (1) | DE1905748U (en) |
| GB (1) | GB1021827A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2740880A1 (en) * | 1995-11-03 | 1997-05-09 | Jerome Jacky | Automatic optician service camera to photograph customers in spectacle frames or spectacle frames alone |
-
1962
- 1962-11-28 CH CH1402362A patent/CH402450A/en unknown
- 1962-12-13 DE DE1962S0043500 patent/DE1905748U/en not_active Expired
- 1962-12-13 GB GB4713862A patent/GB1021827A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2740880A1 (en) * | 1995-11-03 | 1997-05-09 | Jerome Jacky | Automatic optician service camera to photograph customers in spectacle frames or spectacle frames alone |
Also Published As
| Publication number | Publication date |
|---|---|
| CH402450A (en) | 1965-11-15 |
| DE1905748U (en) | 1964-12-03 |
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