CA986760A - Light-polarizing element and method - Google Patents

Light-polarizing element and method

Info

Publication number
CA986760A
CA986760A CA170,147A CA170147A CA986760A CA 986760 A CA986760 A CA 986760A CA 170147 A CA170147 A CA 170147A CA 986760 A CA986760 A CA 986760A
Authority
CA
Canada
Prior art keywords
light
polarizing element
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
CA170,147A
Other versions
CA170147S (en
Inventor
Fredric S. Cohen
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
Application granted granted Critical
Publication of CA986760A publication Critical patent/CA986760A/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)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (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)
CA170,147A 1972-05-02 1973-05-01 Light-polarizing element and method Expired CA986760A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US24954972A 1972-05-02 1972-05-02
US24955072A 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
CA986760A true CA986760A (en) 1976-04-06

Family

ID=27500323

Family Applications (1)

Application Number Title Priority Date Filing Date
CA170,147A Expired CA986760A (en) 1972-05-02 1973-05-01 Light-polarizing 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11987016B2 (en) 2018-07-12 2024-05-21 Essilor International Molding device for casting an optical article with wafer on top, corresponding method and optical article

Families Citing this family (10)

* 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
JP3664522B2 (en) * 1995-07-18 2005-06-29 松下電器産業株式会社 Optical element molding die, optical element molding method, and optical element
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
WO2005103772A1 (en) * 2004-04-19 2005-11-03 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
WO2010073625A1 (en) * 2008-12-22 2010-07-01 株式会社ニコン・エシロール Method of manufacturing resin lens, mold for manufacturing resin lens, and film for resin lens insertion

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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11987016B2 (en) 2018-07-12 2024-05-21 Essilor International Molding device for casting an optical article with wafer on top, corresponding method and optical article

Also Published As

Publication number Publication date
DE2321886C2 (en) 1984-09-13
JPS6226289B2 (en) 1987-06-08
NL7306093A (en) 1973-11-06
NL180569B (en) 1986-10-16
DE2321886A1 (en) 1973-11-15
JPS5513009B2 (en) 1980-04-05
JPS4949646A (en) 1974-05-14
GB1435329A (en) 1976-05-12
FR2183108B1 (en) 1977-04-29
AU5493473A (en) 1974-10-31
IT983041B (en) 1974-10-31
NL180569C (en) 1987-03-16
FR2183108A1 (en) 1973-12-14
JPS53121640A (en) 1978-10-24

Similar Documents

Publication Publication Date Title
CA987526A (en) Film assemblage and method
CA1011325A (en) Catalyst-making method
CA1016390A (en) Meatlike fibers and processes
CA991844A (en) Surface contrast system and method
CA1019262A (en) Closure combination and method
CA1014788A (en) Meatlike fibers and processes
CA947133A (en) Electrophotographic element and method
CA986760A (en) Light-polarizing element and method
CA993730A (en) Renecking method
AU475049B2 (en) Resistance element and method of making the same
CA1010870A (en) Thiaxanthene derivative and method
CA972271A (en) Dual bend forming device and method
CA979251A (en) Composite light-polarizing element
AU478042B2 (en) Light-polarizing element and method
CA907720A (en) Device and method
CA894176A (en) Photographic element and process
CA899697A (en) Photographic element and process
AU480282B2 (en) Supports and cameras
CA910690A (en) Optical grating device and method
CA976017A (en) Sensitizing method and element
CA896473A (en) Electrophotographic element and process
AU474112B2 (en) Indenopyran and indenothiopyranalkylamines
CA905959A (en) Imidoylureas and imidoylthioureas
CA917091A (en) Umbrinomycin and diumycin
CA913518A (en) Caser and method