GB1347762A - Opthalmic lenses and method for their manufacture - Google Patents

Opthalmic lenses and method for their manufacture

Info

Publication number
GB1347762A
GB1347762A GB952371*[A GB1347762DA GB1347762A GB 1347762 A GB1347762 A GB 1347762A GB 1347762D A GB1347762D A GB 1347762DA GB 1347762 A GB1347762 A GB 1347762A
Authority
GB
United Kingdom
Prior art keywords
lens
mould
sides
flexible
polarizing
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
GB952371*[A
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Publication of GB1347762A publication Critical patent/GB1347762A/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
    • B29D11/0048—Moulds for lenses
    • B29D11/00528—Consisting of two mould halves joined by an annular gasket
    • 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
    • B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/12—Polarisers

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1347762 Moulding lenses POLAROID CORP 15 April 1971 9523/71 Heading B5A [Also in Division G2] A light polarizing plastics lens is made by positioning a polarizing element 1 in a mould 6-9, injecting a synthetic monomer on each side of the polarizing element and polymerizing it to form the lens. The mould has rigid glass portions 6, 7 to form the lens faces and flexible rubber or vinyl sides 8, 9 whereby shrinkage of the lens during curing is accommodated. The mould is held together by a clamp 10 or lips on the flexible sides 8, 9. A more complex lens (Fig. 2, not shown) is made from a polarizing sheet of polyvinyl alcohol containing oriented and partially dehydrated molecules and having bonded to each side a supporting layer (4) of a dyed cellulosic plastics. This is roll coated on both sides with cellulose nitrate (5) to improve adhesion of the outer layers 2, 3, and is pressed into spherical contour. A disc of this is placed in the mould, a catalyst and monomer are mixed together, optionally with dyes and U.V. and I.R. absorbers, and the mixture is injected with a syringe through the flexible mould walls 8, 9. The concave face or both faces of lens may be ground and polished. Examples of acrylic monomers and cold-curing thermosetting monomers are given.
GB952371*[A 1971-04-15 1971-04-15 Opthalmic lenses and method for their manufacture Expired GB1347762A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB952371 1971-04-15

Publications (1)

Publication Number Publication Date
GB1347762A true GB1347762A (en) 1974-02-27

Family

ID=9873629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB952371*[A Expired GB1347762A (en) 1971-04-15 1971-04-15 Opthalmic lenses and method for their manufacture

Country Status (1)

Country Link
GB (1) GB1347762A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177342A (en) * 1985-06-27 1987-01-21 Man Technologie Gmbh Moulding a high quality surface on a workpiece
EP0314417A2 (en) * 1987-10-30 1989-05-03 Ronald David Blum Method and apparatus for manufacturing lenses
EP0318164A2 (en) * 1987-10-29 1989-05-31 Techna Vision, Inc. Lens forming system
EP0552498A1 (en) * 1992-01-21 1993-07-28 Corning Incorporated Ophthalmic lens method
US5928575A (en) 1996-04-19 1999-07-27 Q2100, Inc. Methods for eyeglass lens curing using ultraviolet light
US6206673B1 (en) 1986-01-28 2001-03-27 Ophthalmic Research Group International, Inc. Plastic lens and plastic lens manufacturing system
US6280171B1 (en) 1996-06-14 2001-08-28 Q2100, Inc. El apparatus for eyeglass lens curing using ultraviolet light
US6494702B1 (en) 1986-01-28 2002-12-17 Q2100, Inc. Apparatus for the production of plastic lenses
US6730244B1 (en) 1986-01-28 2004-05-04 Q2100, Inc. Plastic lens and method for the production thereof
CN102806619A (en) * 2011-05-30 2012-12-05 厦门虹泰光学有限公司 Resin lens forming mold clamping apparatus
CN113927835A (en) * 2021-10-22 2022-01-14 江苏汇鼎光学眼镜有限公司 Auxiliary device is filled to resin in resin glasses lens production process

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177342A (en) * 1985-06-27 1987-01-21 Man Technologie Gmbh Moulding a high quality surface on a workpiece
GB2177342B (en) * 1985-06-27 1989-05-10 Man Technologie Gmbh A method for producing components with accurate surfaces
US6730244B1 (en) 1986-01-28 2004-05-04 Q2100, Inc. Plastic lens and method for the production thereof
US6494702B1 (en) 1986-01-28 2002-12-17 Q2100, Inc. Apparatus for the production of plastic lenses
US6206673B1 (en) 1986-01-28 2001-03-27 Ophthalmic Research Group International, Inc. Plastic lens and plastic lens manufacturing system
EP0318164A2 (en) * 1987-10-29 1989-05-31 Techna Vision, Inc. Lens forming system
EP0318164A3 (en) * 1987-10-29 1990-11-22 Techna Vision, Inc. Lens forming system
EP0314417A2 (en) * 1987-10-30 1989-05-03 Ronald David Blum Method and apparatus for manufacturing lenses
EP0314417A3 (en) * 1987-10-30 1990-04-04 Ronald David Blum Method and apparatus for manufacturing lenses
EP0552498A1 (en) * 1992-01-21 1993-07-28 Corning Incorporated Ophthalmic lens method
US6171528B1 (en) 1996-04-19 2001-01-09 Q2100, Inc. Methods and apparatus for eyeglass lens curing using ultraviolet light
US6174465B1 (en) 1996-04-19 2001-01-16 Q2100, Inc. Methods for eyeglass lens curing using ultaviolet light
US6200124B1 (en) 1996-04-19 2001-03-13 Q1200 Apparatus for eyeglass lens curing using ultraviolet light
US6022498A (en) 1996-04-19 2000-02-08 Q2100, Inc. Methods for eyeglass lens curing using ultraviolet light
US6241505B1 (en) 1996-04-19 2001-06-05 Q2100, Inc. Apparatus for eyeglass lens curing using ultraviolet light
US6328445B1 (en) 1996-04-19 2001-12-11 Q2100, Inc. Methods and apparatus for eyeglass lens curing using ultraviolet light
US5976423A (en) 1996-04-19 1999-11-02 Q2100, Inc. Methods and apparatus for eyeglass lens curing using ultraviolet light
US5928575A (en) 1996-04-19 1999-07-27 Q2100, Inc. Methods for eyeglass lens curing using ultraviolet light
US6280171B1 (en) 1996-06-14 2001-08-28 Q2100, Inc. El apparatus for eyeglass lens curing using ultraviolet light
CN102806619A (en) * 2011-05-30 2012-12-05 厦门虹泰光学有限公司 Resin lens forming mold clamping apparatus
CN113927835A (en) * 2021-10-22 2022-01-14 江苏汇鼎光学眼镜有限公司 Auxiliary device is filled to resin in resin glasses lens production process
CN113927835B (en) * 2021-10-22 2023-06-30 江苏汇鼎光学眼镜有限公司 Resin filling auxiliary device in production process of resin spectacle lenses

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
48S Specification amended (sect. 8/1949)
PCNP Patent ceased through non-payment of renewal fee