IT8149533A0 - IMPROVEMENT IN OPHTHALMIC LENSES FOR PRESBYOPIA CORRECTION WITH PROGRESSIVE OPTICAL POWER - Google Patents

IMPROVEMENT IN OPHTHALMIC LENSES FOR PRESBYOPIA CORRECTION WITH PROGRESSIVE OPTICAL POWER

Info

Publication number
IT8149533A0
IT8149533A0 IT8149533A IT4953381A IT8149533A0 IT 8149533 A0 IT8149533 A0 IT 8149533A0 IT 8149533 A IT8149533 A IT 8149533A IT 4953381 A IT4953381 A IT 4953381A IT 8149533 A0 IT8149533 A0 IT 8149533A0
Authority
IT
Italy
Prior art keywords
improvement
optical power
ophthalmic lenses
progressive optical
presbyopia correction
Prior art date
Application number
IT8149533A
Other languages
Italian (it)
Other versions
IT1142911B (en
Inventor
John T Winthrop
Original Assignee
American Optical 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 American Optical Corp filed Critical American Optical Corp
Publication of IT8149533A0 publication Critical patent/IT8149533A0/en
Application granted granted Critical
Publication of IT1142911B publication Critical patent/IT1142911B/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
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • G02C7/061—Spectacle lenses with progressively varying focal power

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
IT49533/81A 1981-02-09 1981-10-21 REFINEMENT IN OPHTHALMIC LENSES THAT FOR CORRECTION OF PRESBYOPIA WITH PROGRESSIVE OPTICAL POWER IT1142911B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23275581A 1981-02-09 1981-02-09
US24613981A 1981-04-02 1981-04-02

Publications (2)

Publication Number Publication Date
IT8149533A0 true IT8149533A0 (en) 1981-10-21
IT1142911B IT1142911B (en) 1986-10-15

Family

ID=26926301

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49533/81A IT1142911B (en) 1981-02-09 1981-10-21 REFINEMENT IN OPHTHALMIC LENSES THAT FOR CORRECTION OF PRESBYOPIA WITH PROGRESSIVE OPTICAL POWER

Country Status (2)

Country Link
DE (1) DE3116524C2 (en)
IT (1) IT1142911B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3433916C2 (en) * 1984-09-15 1986-10-16 Optische Werke G. Rodenstock, 8000 München Lens for half glasses
US4838675A (en) * 1987-06-19 1989-06-13 Sola International Holdings, Ltd. Method for improving progressive lens designs and resulting article
DE3739974A1 (en) * 1987-11-25 1989-06-08 Rodenstock Optik G PROGRESSIVE GLASS GLASS
FR2661519B1 (en) * 1990-04-25 1992-07-31 Essilor Int METHOD FOR FACILITATING THE PRODUCTION OF A PROGRESSIVE OPHTHALMIC LENS, AND CORRESPONDING PROGRESSIVE OPHTHALMIC LENS (S).
US5270746A (en) * 1990-06-13 1993-12-14 Seiko Epson Corporation Eyeglass lens
US5285222A (en) * 1992-11-20 1994-02-08 Gentex Optics, Inc. Progressive lens series
US5327181A (en) * 1993-01-12 1994-07-05 Gentex Optics, Inc. Progressive lens for specialty and occupational use

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2109474A (en) * 1931-12-07 1938-03-01 Evans Charles Ernest Spectacle lens
US2878721A (en) * 1954-02-03 1959-03-24 Farrand Optical Co Inc Multifocal ophthalmic lenses
BE755907A (en) * 1969-09-11 1971-02-15 Lunetiers PROGRESSIVE FOCAL POWER LENSES
NL7107504A (en) * 1971-06-01 1972-12-05
NL168626C (en) * 1973-08-16 1982-04-16 American Optical Corp LENS FOR GLASSES WITH VARIETY OF STRENGTH.
DE2814916C3 (en) * 1978-04-06 1982-01-07 Optische Werke G. Rodenstock, 8000 München Spectacle lens with a progression area located between the far part and the near part
EP0027339A3 (en) * 1979-10-11 1981-05-06 U.K. Wiseman Limited Progressive power ophthalmic lenses

Also Published As

Publication number Publication date
DE3116524A1 (en) 1982-08-19
IT1142911B (en) 1986-10-15
DE3116524C2 (en) 1993-06-24

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951031