GB1425903A - Mounting members for ophthalmic lens blanks - Google Patents
Mounting members for ophthalmic lens blanksInfo
- Publication number
- GB1425903A GB1425903A GB2357873A GB2357873A GB1425903A GB 1425903 A GB1425903 A GB 1425903A GB 2357873 A GB2357873 A GB 2357873A GB 2357873 A GB2357873 A GB 2357873A GB 1425903 A GB1425903 A GB 1425903A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blank
- mould
- ophthalmic lens
- skirt
- mounting members
- 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
- 238000005266 casting Methods 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
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
- B24B13/0052—Lens block moulding devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lens Barrels (AREA)
- Casting Devices For Molds (AREA)
- Joining Of Glass To Other Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1425903 Casting composite articles; blocking lenses ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) 17 May 1973 [29 May 1972] 23578/73 Headings B3F and B3D Before casting a holding block on an ophthalmic lens blank 13, a mounting member 10 is fitted to the blank. The member 10 comprises a skirt portion 15 and an annular portion 20, the latter being provided with portions 11a and 11b which bear against the finished face 14 of the lens blank. The skirt 15 is provided with a projection 18 which engages a notch 19 formed in the blank 13 to locate the member in a predetermined angular position in relation to the blank. The member may be made of a transparent plastics material and may be provided with reference marks (30) to assist in the accurate positioning of the member 10 and blank 13 relative to the mould 33. After the metal in the mould has solidified, the mould is removed and the skirt portion 15 of the member torn off by pulling a tab 25 to leave a holding block which incorporates the annular portion 20 of the member 10, Fig. 5 (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7219131A FR2186441B1 (en) | 1972-05-29 | 1972-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1425903A true GB1425903A (en) | 1976-02-25 |
Family
ID=9099234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2357873A Expired GB1425903A (en) | 1972-05-29 | 1973-05-17 | Mounting members for ophthalmic lens blanks |
Country Status (11)
Country | Link |
---|---|
US (1) | US3865178A (en) |
JP (1) | JPS5442116B2 (en) |
BR (1) | BR7303920D0 (en) |
DD (1) | DD105572A5 (en) |
ES (1) | ES415017A1 (en) |
FR (1) | FR2186441B1 (en) |
GB (1) | GB1425903A (en) |
HU (1) | HU173588B (en) |
IT (1) | IT985891B (en) |
NL (1) | NL7307475A (en) |
SU (1) | SU528024A3 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2329427A1 (en) * | 1975-10-30 | 1977-05-27 | Essilor Int | PROCESS FOR THE REALIZATION OF AN OPHTHALMIC LENS WITH PROGRESSIVELY VARIABLE FOCAL POWER, AND SEMI-FINISHED PALET FORMING AN INTERMEDIATE PRODUCT IN THIS PROCESS |
JPS5419394U (en) * | 1977-07-12 | 1979-02-07 | ||
US4266996A (en) * | 1980-01-25 | 1981-05-12 | Spectra-Physics, Inc. | Method and tool for producing centered parts having spherical surfaces |
FR2613261B1 (en) * | 1987-03-30 | 1991-02-01 | Essilor Int | MOLD FOR FIXING A METAL BLOCK BY OVER-MOLDING ON ONE OF THE FACES OF AN OPHTHALMIC LENS |
EP0807673A1 (en) * | 1996-05-15 | 1997-11-19 | Hamo Ag | Protective adhesive foil for optical glasses and process for removing it |
DE19925087C2 (en) * | 1999-06-01 | 2002-11-21 | Rmh Polymers Gmbh & Co Kg | Device for bubble-free and wrinkle-free coating of optical or electronic components with one-sided adhesive protective film |
DE10017363C2 (en) * | 2000-04-07 | 2002-04-18 | Rmh Polymers Gmbh & Co Kg | Process for the automatic application of a protective lacquer to spectacle lens blanks |
EP1327496B1 (en) * | 2002-01-09 | 2009-06-17 | Hoya Corporation | Polishing apparatus |
WO2011076904A1 (en) * | 2009-12-24 | 2011-06-30 | Essilor International (Compagnie Generale D'optique) | A method for mounting an optical lens to be polished |
JP5499074B2 (en) * | 2011-05-17 | 2014-05-21 | Hoya株式会社 | Lens blank, method for manufacturing the same, and method for manufacturing a lens |
US8659842B1 (en) * | 2012-09-13 | 2014-02-25 | Himax Technologies Limited | Image capturing device and assembling method thereof |
CN106334974A (en) * | 2016-10-31 | 2017-01-18 | 福建福晶科技股份有限公司 | Machining method for perpendicularity of optical piece |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1952373A (en) * | 1924-04-10 | 1934-03-27 | American Optical Corp | Lens blocking device |
US2245257A (en) * | 1939-07-25 | 1941-06-10 | Eastman Kodak Co | Lens mount |
JPS431012Y1 (en) * | 1964-07-15 | 1968-01-18 | ||
US3330331A (en) * | 1964-09-18 | 1967-07-11 | Textron Inc | Method and apparatus for blocking a lens blank |
US3353307A (en) * | 1964-10-29 | 1967-11-21 | Titmus Optical Company Inc | Lens holder for metallic blocking system |
JPS436381Y1 (en) * | 1965-02-10 | 1968-03-21 | ||
FR1517121A (en) * | 1966-03-02 | 1968-03-15 | Univis Inc | Method and assembly block for the manufacture of ophthalmological lenses from blanks as well as lenses conforming to those thus obtained |
-
1972
- 1972-05-29 FR FR7219131A patent/FR2186441B1/fr not_active Expired
-
1973
- 1973-05-10 IT IT68335/73A patent/IT985891B/en active
- 1973-05-16 SU SU1912853A patent/SU528024A3/en active
- 1973-05-17 GB GB2357873A patent/GB1425903A/en not_active Expired
- 1973-05-21 US US361971A patent/US3865178A/en not_active Expired - Lifetime
- 1973-05-22 ES ES415017A patent/ES415017A1/en not_active Expired
- 1973-05-28 BR BR3920/73A patent/BR7303920D0/en unknown
- 1973-05-28 JP JP5964673A patent/JPS5442116B2/ja not_active Expired
- 1973-05-28 HU HU73EI480A patent/HU173588B/en unknown
- 1973-05-29 NL NL7307475A patent/NL7307475A/xx not_active Application Discontinuation
- 1973-05-29 DD DD171152A patent/DD105572A5/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2322479B2 (en) | 1976-07-29 |
ES415017A1 (en) | 1976-02-16 |
US3865178A (en) | 1975-02-11 |
HU173588B (en) | 1979-06-28 |
JPS5442116B2 (en) | 1979-12-12 |
IT985891B (en) | 1974-12-20 |
SU528024A3 (en) | 1976-09-05 |
JPS4955707A (en) | 1974-05-30 |
BR7303920D0 (en) | 1974-07-25 |
DD105572A5 (en) | 1974-05-05 |
NL7307475A (en) | 1973-12-03 |
FR2186441A1 (en) | 1974-01-11 |
FR2186441B1 (en) | 1976-08-06 |
DE2322479A1 (en) | 1973-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |