GB1435329A - Light-polarising element and method - Google Patents

Light-polarising element and method

Info

Publication number
GB1435329A
GB1435329A GB2091473A GB2091473A GB1435329A GB 1435329 A GB1435329 A GB 1435329A GB 2091473 A GB2091473 A GB 2091473A GB 2091473 A GB2091473 A GB 2091473A GB 1435329 A GB1435329 A GB 1435329A
Authority
GB
United Kingdom
Prior art keywords
mould
lens
light polarizing
light
polarizing element
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
GB2091473A
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
Priority claimed from US00312909A external-priority patent/US3846013A/en
Application filed by Polaroid Corp filed Critical Polaroid Corp
Publication of GB1435329A publication Critical patent/GB1435329A/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
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • 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
    • G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/76—Office equipment or accessories
    • B29L2031/7602—Maps
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/16—Laminated or compound lenses

Landscapes

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

Abstract

1435329 Moulding composite lenses POLAROID CORP 2 May 1973 [2 May 1972 (2) 26 June 1972 7 Dec 1972] 20914/73 Heading B5A A composite lens comprising a light polarizing element between two moulded elements of synthetic polymer is formed by placing the light polarising element across a resilient mould part defining the lens periphery, closing the mould with first and second rigid mould parts defining the lens faces and injecting by means of a syringe, polymerisable material into the mould to fill the cavities on each side of the light polarizing element, and polymerizing the material, there being transfer means, e.g. ports in the light polarizing element, the material being injected into only one cavity and passing into the other through the transfer means. As shown, the resilient mould part 22 locates light polarizing element 23 and the rigid parts 20, 24, e.g. of glass are held by clamp 26. Elements 23 have ports 25 therein for transfer of moulding material. The shallower cavity may be defined in depth by projections on element 23 or by a rim 21 on part 20. The resilient mould part may have a notch (4, Figs. 1-3, not shown) to locate the polarizing axes of the element 23 and a groove (5) to identify the axes in the moulded lens for location in a grinding machine.
GB2091473A 1972-05-02 1973-05-02 Light-polarising element and method Expired GB1435329A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US24955072A 1972-05-02 1972-05-02
US24954972A 1972-05-02 1972-05-02
US26625072A 1972-06-26 1972-06-26
US00312909A US3846013A (en) 1972-05-02 1972-12-07 Light-polarizing element

Publications (1)

Publication Number Publication Date
GB1435329A true GB1435329A (en) 1976-05-12

Family

ID=27500323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2091473A Expired GB1435329A (en) 1972-05-02 1973-05-02 Light-polarising element and method

Country Status (7)

Country Link
JP (2) JPS5513009B2 (en)
CA (1) CA986760A (en)
DE (1) DE2321886C2 (en)
FR (1) FR2183108B1 (en)
GB (1) GB1435329A (en)
IT (1) IT983041B (en)
NL (1) NL180569C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693446A (en) 1985-09-20 1987-09-15 Techna Vision, Inc. Gasket for molding plastic lenses
US4873029A (en) * 1987-10-30 1989-10-10 Blum Ronald D Method for manufacturing lenses
US5286419A (en) * 1992-02-20 1994-02-15 Bmc Industries, Inc. Process for making a light polarizing spectacle lens
EP0754538A2 (en) * 1995-07-18 1997-01-22 Matsushita Electric Industrial Co., Ltd Optical element, optical element molding die, and method of molding the optical element

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6801360B2 (en) * 2002-10-28 2004-10-05 International Polarizer, Inc. Polarized lens formed by injection/coining injection molding process
JP4485838B2 (en) * 2003-08-19 2010-06-23 株式会社 サンルックス Manufacturing method of polarizing plastic lens and manufacturing method of polarizing plastic film
CA2563763C (en) * 2004-04-19 2014-10-14 Sunlux Co., Ltd. Polarizing plastic optical device and process for producing the same
JP5166785B2 (en) * 2007-06-25 2013-03-21 株式会社 サンルックス Manufacturing method of polarizing plastic lens
JP5046790B2 (en) * 2007-08-22 2012-10-10 株式会社ニコン・エシロール Gasket and optical element manufacturing method
JPWO2010073625A1 (en) * 2008-12-22 2012-06-07 株式会社ニコン・エシロール Resin lens manufacturing method, resin lens manufacturing mold, and resin lens interpolating film
EP3593981B1 (en) 2018-07-12 2022-12-21 Essilor International Improved molding device for casting an optical article with wafer on top, corresponding method and opticle article

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581197A (en) * 1944-06-23 1946-10-03 John Johnson Improvements in the manufacture of lenses
FR1342927A (en) * 1963-11-04 1963-11-15 Overmolding process for injected parts
US3354938A (en) * 1964-07-02 1967-11-28 American Optical Corp Apparatus for blocking lenses
FR1513299A (en) * 1966-09-02 1968-02-16 Verreries De Goetzenbruck S A Process for manufacturing composite screens or eyepieces in organic material
FR2118305A5 (en) * 1970-12-14 1972-07-28 Vergo Sa
FR2134094A1 (en) * 1971-04-19 1972-12-08 Polaroid Corp Synthetic plastic correction lenses
DE2118906C2 (en) * 1971-04-19 1982-05-06 Polaroid Corp., 02139 Cambridge, Mass. Polarizing, multilayer eyeglass lens

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693446A (en) 1985-09-20 1987-09-15 Techna Vision, Inc. Gasket for molding plastic lenses
US4873029A (en) * 1987-10-30 1989-10-10 Blum Ronald D Method for manufacturing lenses
US5286419A (en) * 1992-02-20 1994-02-15 Bmc Industries, Inc. Process for making a light polarizing spectacle lens
US5412505A (en) * 1992-02-20 1995-05-02 Raoul F. van Ligten Light polarizing spectacle lens
EP0754538A2 (en) * 1995-07-18 1997-01-22 Matsushita Electric Industrial Co., Ltd Optical element, optical element molding die, and method of molding the optical element
EP0754538A3 (en) * 1995-07-18 1998-05-06 Matsushita Electric Industrial Co., Ltd Optical element, optical element molding die, and method of molding the optical element
US5805361A (en) * 1995-07-18 1998-09-08 Matsushita Electric Industrial Co., Ltd. Optical element, optical element molding die, and method of molding the optical element

Also Published As

Publication number Publication date
AU5493473A (en) 1974-10-31
IT983041B (en) 1974-10-31
NL180569B (en) 1986-10-16
DE2321886A1 (en) 1973-11-15
CA986760A (en) 1976-04-06
FR2183108A1 (en) 1973-12-14
DE2321886C2 (en) 1984-09-13
JPS5513009B2 (en) 1980-04-05
NL180569C (en) 1987-03-16
JPS6226289B2 (en) 1987-06-08
JPS4949646A (en) 1974-05-14
FR2183108B1 (en) 1977-04-29
NL7306093A (en) 1973-11-06
JPS53121640A (en) 1978-10-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee