JPS57157212A - Progressive multifocus lens - Google Patents

Progressive multifocus lens

Info

Publication number
JPS57157212A
JPS57157212A JP4205181A JP4205181A JPS57157212A JP S57157212 A JPS57157212 A JP S57157212A JP 4205181 A JP4205181 A JP 4205181A JP 4205181 A JP4205181 A JP 4205181A JP S57157212 A JPS57157212 A JP S57157212A
Authority
JP
Japan
Prior art keywords
ear
nose
lens
progressive multifocus
user
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.)
Pending
Application number
JP4205181A
Other languages
Japanese (ja)
Inventor
Masaru Egawa
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP4205181A priority Critical patent/JPS57157212A/en
Publication of JPS57157212A publication Critical patent/JPS57157212A/en
Pending legal-status Critical Current

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
    • G02C7/063—Shape of the progressive surface
    • 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
    • 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)

Abstract

PURPOSE:To obtain a progressive multifocus lens which satisfies the user in a high degree, by making equal astigmatism curves in the side of his ear thinner than those in the side of his nose and making the region of distinct vision in the side of his nose larger than that in the side of his ear. CONSTITUTION:In a progressive multifocus lens, equal astigmatism curves in the side of user's ear (left) are thinner than those in the side of his nose (right), and the region of distinct vision in the side if his nose is larger that in the side of his ear. Thus, since the lens is so designed that the part for a long distance is very wide and the part for a short distance is wide sufficiently and swing is restrained to a minimum, the progressive multifocus lens is obtained which satisfies the user in a high degree.
JP4205181A 1981-03-23 1981-03-23 Progressive multifocus lens Pending JPS57157212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4205181A JPS57157212A (en) 1981-03-23 1981-03-23 Progressive multifocus lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4205181A JPS57157212A (en) 1981-03-23 1981-03-23 Progressive multifocus lens

Publications (1)

Publication Number Publication Date
JPS57157212A true JPS57157212A (en) 1982-09-28

Family

ID=12625310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4205181A Pending JPS57157212A (en) 1981-03-23 1981-03-23 Progressive multifocus lens

Country Status (1)

Country Link
JP (1) JPS57157212A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01152416A (en) * 1987-09-14 1989-06-14 Autom Lens Syst Inc Multi-focus spectacles lens
US7059718B2 (en) 2004-01-21 2006-06-13 Hidden Harbor Group L.L.C. Eyewear having a magnified wide field of view

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01152416A (en) * 1987-09-14 1989-06-14 Autom Lens Syst Inc Multi-focus spectacles lens
US7059718B2 (en) 2004-01-21 2006-06-13 Hidden Harbor Group L.L.C. Eyewear having a magnified wide field of view

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