GB630402A - Improvements in or relating to lens grinding apparatus - Google Patents
Improvements in or relating to lens grinding apparatusInfo
- Publication number
- GB630402A GB630402A GB2558247A GB2558247A GB630402A GB 630402 A GB630402 A GB 630402A GB 2558247 A GB2558247 A GB 2558247A GB 2558247 A GB2558247 A GB 2558247A GB 630402 A GB630402 A GB 630402A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support plate
- lens
- locating ring
- universal joint
- blank
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
630,402. Grinding lenses. LONDON OPTICAL CO., Ltd., and BEARDON, E. W. Sept. 19, 1947, No. 25582. [Class 60] [Also in Group XXII] Lens grinding equipment consists of an attachment in the form of a lens holder comprising a lenslocating ring 1, a lens support plate 7 within the locating ring, and a universal joint 3, 4 between the support plate and locating ring. A lens blank 12, the underside of which has been ground, is stuck by pitch 13 on the support plate 7, the pitch being broken away at appropriate places to allow locator pins 11 to contact the ground surface of the blank. The pins 11 are adjustable for height and radial setting on the locating ring 1, which carries the socket 3, preferably split, for the universal joint and a clamping screw 2. The ball 4 of the universal joint has a tubular extension 6 provided with a clamping screw 10 for the support plate 7. A third clamping screw 15 secures the locating ring 1 in a mounting ring 14 which has a tapered bore 17 to fit a correspondingly shaped post on the machine table. After the blank has been attached to the support plate, the latter is clamped to the tubular extension 6 and the socket 3 is inserted into the locating ring 1 until all of the locator pins are in contact with the underside of the lens blank, the universal joint compensating for any malalignment of the lens in relation to the support plate. The complete assembly is now mounted on the machine. For spherical lenses, the locator pins may be replaced by rings or segments. Different types of support plate 7 may also be provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2558247A GB630402A (en) | 1947-09-19 | 1947-09-19 | Improvements in or relating to lens grinding apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2558247A GB630402A (en) | 1947-09-19 | 1947-09-19 | Improvements in or relating to lens grinding apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB630402A true GB630402A (en) | 1949-10-12 |
Family
ID=10230014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2558247A Expired GB630402A (en) | 1947-09-19 | 1947-09-19 | Improvements in or relating to lens grinding apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB630402A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3032936A (en) * | 1958-08-08 | 1962-05-08 | Stolper & Voice Optical Compan | Contact lens polishing assembly |
US3289355A (en) * | 1963-04-22 | 1966-12-06 | Coburn Mfg Company Inc | Automatic lens grinding machine |
US4089102A (en) * | 1975-10-23 | 1978-05-16 | Autoflow Engineering Limited | Method of forming and using a lens holder |
US4277916A (en) * | 1980-03-14 | 1981-07-14 | American Optical Corporation | Lens chucking apparatus |
FR2576820A1 (en) * | 1985-02-01 | 1986-08-08 | Essilor Int | SUPPORT RING FOR FIXING A MOUNTING BLOCK ON THE FINISHED FACE WITH A PROGRESSIVELY VARIABLE BENDING OF A SEMI-FINISHED RIBBON OF A PALLET, SUCH AS AN OPHTHALMIC LENS OR MOLD |
CN102975143A (en) * | 2012-08-17 | 2013-03-20 | 苏州吴中经济开发区搏宇模具加工厂 | Mobile phone lens rapid chuck device |
-
1947
- 1947-09-19 GB GB2558247A patent/GB630402A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3032936A (en) * | 1958-08-08 | 1962-05-08 | Stolper & Voice Optical Compan | Contact lens polishing assembly |
US3289355A (en) * | 1963-04-22 | 1966-12-06 | Coburn Mfg Company Inc | Automatic lens grinding machine |
US4089102A (en) * | 1975-10-23 | 1978-05-16 | Autoflow Engineering Limited | Method of forming and using a lens holder |
US4277916A (en) * | 1980-03-14 | 1981-07-14 | American Optical Corporation | Lens chucking apparatus |
FR2576820A1 (en) * | 1985-02-01 | 1986-08-08 | Essilor Int | SUPPORT RING FOR FIXING A MOUNTING BLOCK ON THE FINISHED FACE WITH A PROGRESSIVELY VARIABLE BENDING OF A SEMI-FINISHED RIBBON OF A PALLET, SUCH AS AN OPHTHALMIC LENS OR MOLD |
EP0191689A1 (en) * | 1985-02-01 | 1986-08-20 | ESSILOR INTERNATIONAL Compagnie Générale d'Optique | Supporting ring for fixing a mounting block on the progressively variable finished face of a disc such as an ophthalmic lens or a mould |
US4714232A (en) * | 1985-02-01 | 1987-12-22 | Essilor International Cie Generale D'optique | Bearing ring for fixing a mounting block on the progressively variable curved finished face of a semi-finished lens or mold blank |
CN102975143A (en) * | 2012-08-17 | 2013-03-20 | 苏州吴中经济开发区搏宇模具加工厂 | Mobile phone lens rapid chuck device |
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