GB699736A - Improvements in and relating to the manner of manufacture of contact lenses - Google Patents

Improvements in and relating to the manner of manufacture of contact lenses

Info

Publication number
GB699736A
GB699736A GB6420/50A GB642050A GB699736A GB 699736 A GB699736 A GB 699736A GB 6420/50 A GB6420/50 A GB 6420/50A GB 642050 A GB642050 A GB 642050A GB 699736 A GB699736 A GB 699736A
Authority
GB
United Kingdom
Prior art keywords
contact lenses
relating
manufacture
manner
simulacrum
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
GB6420/50A
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.)
MUELLER WELT GmbH
Original Assignee
MUELLER WELT GmbH
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 MUELLER WELT GmbH filed Critical MUELLER WELT GmbH
Publication of GB699736A publication Critical patent/GB699736A/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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00317—Production of lenses with markings or patterns
    • 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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00048—Production of contact lenses composed of parts with dissimilar composition
    • 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
    • B29D11/0073—Optical laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)

Abstract

699,736. Contact lenses. MUELLER-WELT GES. March 14, 1950 [March 14, 1949], No. 6420/50. Class 97 (i). [Also in Group V] A contact lens of transparent thermoplastic material has embedded therein a simulacrum 2 of a natural iris. The simulacrum may be made of textile fabric, paper or metal, and may be coloured by lithographic printing. The scleral part of the lens may be coloured by threads of sheep's wool embedded therein.
GB6420/50A 1949-03-14 1950-03-14 Improvements in and relating to the manner of manufacture of contact lenses Expired GB699736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE699736X 1949-03-14

Publications (1)

Publication Number Publication Date
GB699736A true GB699736A (en) 1953-11-18

Family

ID=6608508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6420/50A Expired GB699736A (en) 1949-03-14 1950-03-14 Improvements in and relating to the manner of manufacture of contact lenses

Country Status (1)

Country Link
GB (1) GB699736A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431327A (en) * 1964-08-31 1969-03-04 George F Tsuetaki Method of making a bifocal contact lens with an embedded metal weight
US3507566A (en) * 1968-04-29 1970-04-21 Arthur A Knapp Contact lens and spectacle lens structure
US3536386A (en) * 1967-10-27 1970-10-27 Morris Spivack Contact lens with simulated iris
US4071293A (en) * 1974-10-18 1978-01-31 Avery Theodore P Contact lens and method of making same
US4873029A (en) * 1987-10-30 1989-10-10 Blum Ronald D Method for manufacturing lenses
US5018849A (en) * 1988-11-16 1991-05-28 Ciba-Geigy Corporation Colored contact lens and methods of making the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431327A (en) * 1964-08-31 1969-03-04 George F Tsuetaki Method of making a bifocal contact lens with an embedded metal weight
US3536386A (en) * 1967-10-27 1970-10-27 Morris Spivack Contact lens with simulated iris
US3507566A (en) * 1968-04-29 1970-04-21 Arthur A Knapp Contact lens and spectacle lens structure
US4071293A (en) * 1974-10-18 1978-01-31 Avery Theodore P Contact lens and method of making same
US4873029A (en) * 1987-10-30 1989-10-10 Blum Ronald D Method for manufacturing lenses
US5018849A (en) * 1988-11-16 1991-05-28 Ciba-Geigy Corporation Colored contact lens and methods of making the same

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