BE846873A - LENS WITH A NON-SPHERICAL SURFACE AND ITS EMBODIMENT PROCESS, - Google Patents

LENS WITH A NON-SPHERICAL SURFACE AND ITS EMBODIMENT PROCESS,

Info

Publication number
BE846873A
BE846873A BE171184A BE171184A BE846873A BE 846873 A BE846873 A BE 846873A BE 171184 A BE171184 A BE 171184A BE 171184 A BE171184 A BE 171184A BE 846873 A BE846873 A BE 846873A
Authority
BE
Belgium
Prior art keywords
lens
spherical surface
embodiment process
spherical
Prior art date
Application number
BE171184A
Other languages
French (fr)
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 filed Critical
Publication of BE846873A publication Critical patent/BE846873A/en

Links

Classifications

    • 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
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/044—Annular configuration, e.g. pupil tuned
    • 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
    • B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
    • 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
    • B29D11/00028—Bifocal lenses; Multifocal lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal 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
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/042—Simultaneous type

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Eyeglasses (AREA)
BE171184A 1975-10-08 1976-10-01 LENS WITH A NON-SPHERICAL SURFACE AND ITS EMBODIMENT PROCESS, BE846873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62078675A 1975-10-08 1975-10-08

Publications (1)

Publication Number Publication Date
BE846873A true BE846873A (en) 1977-04-01

Family

ID=24487387

Family Applications (1)

Application Number Title Priority Date Filing Date
BE171184A BE846873A (en) 1975-10-08 1976-10-01 LENS WITH A NON-SPHERICAL SURFACE AND ITS EMBODIMENT PROCESS,

Country Status (8)

Country Link
JP (1) JPS5246826A (en)
BE (1) BE846873A (en)
BR (1) BR7606688A (en)
FR (1) FR2327562A1 (en)
GB (1) GB1561892A (en)
IT (1) IT1075969B (en)
LU (1) LU75941A1 (en)
NL (1) NL7611086A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165158A (en) * 1977-07-25 1979-08-21 American Optical Corporation Cast contact lenses and method for making same
EP0070006A1 (en) * 1977-08-02 1983-01-19 Automated Optics, Inc. Contact lenses
FR2509483A1 (en) * 1981-04-15 1983-01-14 Essilor Int CONTACT LENS
GB2132785A (en) * 1982-12-23 1984-07-11 Nat Patent Dev Corp Thin aphakic contact lens
US4580882A (en) * 1983-04-21 1986-04-08 Benjamin Nuchman Continuously variable contact lens
GB2192291B (en) * 1986-03-04 1990-08-22 Gupta Anil K Progressive power contact lens.
US5417306A (en) * 1993-06-03 1995-05-23 Robl; William A. Tree climbing apparatus
GB2327283B (en) * 1997-06-04 2002-02-27 Bausch & Lomb Manufacture of contact lenses
GB0504448D0 (en) * 2005-03-03 2005-04-06 Spurgeon Peter J C Optical apparatus and image processing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493595A (en) * 1972-04-21 1974-01-12

Also Published As

Publication number Publication date
NL7611086A (en) 1977-04-13
JPS5246826A (en) 1977-04-14
FR2327562B3 (en) 1979-06-15
FR2327562A1 (en) 1977-05-06
GB1561892A (en) 1980-03-05
IT1075969B (en) 1985-04-22
BR7606688A (en) 1977-11-16
LU75941A1 (en) 1977-05-25

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