BR8905047A - Processo de producao de moldes para lentes multifocais de polimeros organicos - Google Patents

Processo de producao de moldes para lentes multifocais de polimeros organicos

Info

Publication number
BR8905047A
BR8905047A BR898905047A BR8905047A BR8905047A BR 8905047 A BR8905047 A BR 8905047A BR 898905047 A BR898905047 A BR 898905047A BR 8905047 A BR8905047 A BR 8905047A BR 8905047 A BR8905047 A BR 8905047A
Authority
BR
Brazil
Prior art keywords
production process
organic polymer
mold production
multifocal lenses
multifocal
Prior art date
Application number
BR898905047A
Other languages
English (en)
Inventor
Milford Leland Buckley
Original Assignee
Corning Inc
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 Corning Inc filed Critical Corning Inc
Publication of BR8905047A publication Critical patent/BR8905047A/pt

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
    • B29D11/00028—Bifocal lenses; Multifocal lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
BR898905047A 1988-10-17 1989-10-04 Processo de producao de moldes para lentes multifocais de polimeros organicos BR8905047A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25890488A 1988-10-17 1988-10-17

Publications (1)

Publication Number Publication Date
BR8905047A true BR8905047A (pt) 1990-05-08

Family

ID=22982639

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898905047A BR8905047A (pt) 1988-10-17 1989-10-04 Processo de producao de moldes para lentes multifocais de polimeros organicos

Country Status (5)

Country Link
EP (1) EP0365163A3 (pt)
JP (1) JPH02164523A (pt)
AU (1) AU4272989A (pt)
BR (1) BR8905047A (pt)
CA (1) CA1327890C (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0882775A (ja) * 1994-09-09 1996-03-26 Micro Eng Kk 遠近両用眼鏡レンズ及びその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE570930A (pt) *
US2059767A (en) * 1934-10-26 1936-11-03 Bausch & Lomb Manufacture of ophthalmic lenses
US3649236A (en) * 1970-03-05 1972-03-14 Bausch & Lomb Manufacture of multifocal ophthalmic lens molds
US3946982A (en) * 1974-09-03 1976-03-30 Textron, Inc. Adjustable mold for direct casting of plastic multifocal lenses
US4163541A (en) * 1977-02-04 1979-08-07 Signet Optical Corporation Mold for the casting of resin ophthalmic lenses having a prismatic segment
US4279401A (en) * 1980-05-30 1981-07-21 American Optical Corporation Apparatus and method for making cast ophthalmic lenses

Also Published As

Publication number Publication date
JPH02164523A (ja) 1990-06-25
AU4272989A (en) 1990-04-26
CA1327890C (en) 1994-03-22
EP0365163A3 (en) 1991-03-20
EP0365163A2 (en) 1990-04-25

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FB19 Grant procedure suspended (art. 19)
FA9 Application deemed withdrawn - failure to comply with requirements