GB1372816A - Method and apparatus for working flexible contact lenses - Google Patents

Method and apparatus for working flexible contact lenses

Info

Publication number
GB1372816A
GB1372816A GB2387073A GB2387073A GB1372816A GB 1372816 A GB1372816 A GB 1372816A GB 2387073 A GB2387073 A GB 2387073A GB 2387073 A GB2387073 A GB 2387073A GB 1372816 A GB1372816 A GB 1372816A
Authority
GB
United Kingdom
Prior art keywords
lens
spindles
working
abrasive
deformation
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
Application number
GB2387073A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Publication of GB1372816A publication Critical patent/GB1372816A/en
Expired legal-status Critical Current

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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/142—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms for contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00932—Combined cutting and grinding thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Eyeglasses (AREA)
GB2387073A 1972-05-18 1973-05-18 Method and apparatus for working flexible contact lenses Expired GB1372816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7217783A FR2184473B1 (enExample) 1972-05-18 1972-05-18

Publications (1)

Publication Number Publication Date
GB1372816A true GB1372816A (en) 1974-11-06

Family

ID=9098733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2387073A Expired GB1372816A (en) 1972-05-18 1973-05-18 Method and apparatus for working flexible contact lenses

Country Status (11)

Country Link
US (1) US3877184A (enExample)
JP (1) JPS4956644A (enExample)
AU (1) AU472771B2 (enExample)
BE (1) BE799653A (enExample)
CA (1) CA989177A (enExample)
CH (1) CH569297A5 (enExample)
DE (1) DE2323439A1 (enExample)
FR (1) FR2184473B1 (enExample)
GB (1) GB1372816A (enExample)
IT (1) IT987677B (enExample)
NL (1) NL7306965A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725047B1 (fr) * 1994-09-27 1997-01-31 Essilor Int Procede et dispositif pour obvier a la fragilite des aretes d'une lentille ophtalmique, et lentille ophtalmique correspondante
JP3649902B2 (ja) 1998-04-08 2005-05-18 松下電器産業株式会社 ドームカバーの製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353303A (en) * 1964-11-13 1967-11-21 Ait Ind Inc Art of edging
US3528326A (en) * 1967-08-30 1970-09-15 Lauren G Kilmer Contact lens edging apparatus
US3514908A (en) * 1967-11-29 1970-06-02 Bausch & Lomb Process for finishing contact lenses
FR2076643A5 (enExample) * 1970-01-22 1971-10-15 Silor
FR2097216A5 (enExample) * 1970-05-27 1972-03-03 Anvar
US3722143A (en) * 1971-01-29 1973-03-27 Mabry R Contact lens edge finishing machine

Also Published As

Publication number Publication date
FR2184473B1 (enExample) 1976-01-16
IT987677B (it) 1975-03-20
FR2184473A1 (enExample) 1973-12-28
CA989177A (fr) 1976-05-18
DE2323439A1 (de) 1973-11-29
AU5564073A (en) 1974-11-14
NL7306965A (enExample) 1973-11-20
CH569297A5 (enExample) 1975-11-14
JPS4956644A (enExample) 1974-06-01
AU472771B2 (en) 1976-06-03
BE799653A (fr) 1973-09-17
US3877184A (en) 1975-04-15

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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