ES430697A1 - Contact lenses - Google Patents

Contact lenses

Info

Publication number
ES430697A1
ES430697A1 ES430697A ES430697A ES430697A1 ES 430697 A1 ES430697 A1 ES 430697A1 ES 430697 A ES430697 A ES 430697A ES 430697 A ES430697 A ES 430697A ES 430697 A1 ES430697 A1 ES 430697A1
Authority
ES
Spain
Prior art keywords
contact lenses
circumferential edge
lens
edge surface
curved lens
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
ES430697A
Other languages
Spanish (es)
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.)
GLOBAL VISION UK Ltd
Original Assignee
GLOBAL VISION UK Ltd
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 GLOBAL VISION UK Ltd filed Critical GLOBAL VISION UK Ltd
Publication of ES430697A1 publication Critical patent/ES430697A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Eyeglasses (AREA)
  • Turning (AREA)

Abstract

A method of manufacturing a contact lens from a suitable lens blank, comprising: machining opposite first and second curved lens surfaces, and a desired circumferential edge surface, characterized in that said circumferential edge surface is it machines before at least one such curved lens surface is machined. (Machine-translation by Google Translate, not legally binding)
ES430697A 1973-10-06 1974-10-04 Contact lenses Expired ES430697A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4677573A GB1488001A (en) 1973-10-06 1973-10-06 Contact lenses

Publications (1)

Publication Number Publication Date
ES430697A1 true ES430697A1 (en) 1977-04-16

Family

ID=10442545

Family Applications (1)

Application Number Title Priority Date Filing Date
ES430697A Expired ES430697A1 (en) 1973-10-06 1974-10-04 Contact lenses

Country Status (9)

Country Link
JP (2) JPS5641361B2 (en)
BE (1) BE820771A (en)
CA (1) CA1028881A (en)
DE (1) DE2447490C2 (en)
ES (1) ES430697A1 (en)
FR (1) FR2246369B1 (en)
GB (1) GB1488001A (en)
IT (1) IT1022556B (en)
NL (1) NL178852C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6321552U (en) * 1977-08-02 1988-02-12
FR2509483A1 (en) * 1981-04-15 1983-01-14 Essilor Int CONTACT LENS
CA1206338A (en) * 1982-05-14 1986-06-24 Michael J. Sealey Machining workpieces

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112581A (en) * 1961-02-03 1963-12-03 Hoffman Jacob Contact lens finishing machine
DE1495381B2 (en) * 1963-09-07 1971-06-24 Czeskoslovenska akademie ved , Prag METHOD FOR MANUFACTURING CONTACT LENSES OR CONTACT LENS BLOCKS FROM SWELLABLE HYDROGELS
FR2195930A5 (en) * 1972-08-10 1974-03-08 Bausch & Lomb

Also Published As

Publication number Publication date
NL178852B (en) 1986-01-02
JPS5641361B2 (en) 1981-09-28
CA1028881A (en) 1978-04-04
JPS5078339A (en) 1975-06-26
FR2246369A1 (en) 1975-05-02
JPS56157945A (en) 1981-12-05
BE820771A (en) 1975-02-03
DE2447490A1 (en) 1975-04-17
FR2246369B1 (en) 1978-07-07
NL178852C (en) 1986-06-02
DE2447490C2 (en) 1985-11-07
NL7413141A (en) 1975-04-08
GB1488001A (en) 1977-10-05
IT1022556B (en) 1978-04-20

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