HK22381A - Progressive power ophthalmic lens - Google Patents

Progressive power ophthalmic lens

Info

Publication number
HK22381A
HK22381A HK22381A HK22381A HK22381A HK 22381 A HK22381 A HK 22381A HK 22381 A HK22381 A HK 22381A HK 22381 A HK22381 A HK 22381A HK 22381 A HK22381 A HK 22381A
Authority
HK
Hong Kong
Prior art keywords
ophthalmic lens
progressive power
power ophthalmic
progressive
lens
Prior art date
Application number
HK22381A
Inventor
J 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 HK22381A publication Critical patent/HK22381A/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)
HK22381A 1976-11-02 1981-05-21 Progressive power ophthalmic lens HK22381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4560176A GB1569764A (en) 1976-11-02 1976-11-02 Progressive power ophthalmic lens

Publications (1)

Publication Number Publication Date
HK22381A true HK22381A (en) 1981-05-29

Family

ID=10437843

Family Applications (1)

Application Number Title Priority Date Filing Date
HK22381A HK22381A (en) 1976-11-02 1981-05-21 Progressive power ophthalmic lens

Country Status (2)

Country Link
GB (1) GB1569764A (en)
HK (1) HK22381A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027339A3 (en) * 1979-10-11 1981-05-06 U.K. Wiseman Limited Progressive power ophthalmic lenses
US4861153A (en) * 1986-12-19 1989-08-29 American Optical Corporation Progressive addition spectacle lens
US5048945A (en) * 1989-07-14 1991-09-17 Nikon Corporation Progressive power lens

Also Published As

Publication number Publication date
GB1569764A (en) 1980-06-18

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