JPS6342764B2 - - Google Patents

Info

Publication number
JPS6342764B2
JPS6342764B2 JP15909282A JP15909282A JPS6342764B2 JP S6342764 B2 JPS6342764 B2 JP S6342764B2 JP 15909282 A JP15909282 A JP 15909282A JP 15909282 A JP15909282 A JP 15909282A JP S6342764 B2 JPS6342764 B2 JP S6342764B2
Authority
JP
Japan
Prior art keywords
region
curve
curvature
lens
principal meridian
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.)
Expired
Application number
JP15909282A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5948732A (ja
Inventor
Shunei Shinohara
Sakiho Okazaki
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
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP15909282A priority Critical patent/JPS5948732A/ja
Publication of JPS5948732A publication Critical patent/JPS5948732A/ja
Publication of JPS6342764B2 publication Critical patent/JPS6342764B2/ja
Granted 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
    • G02C7/065—Properties on the principal line
    • 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)
JP15909282A 1982-09-13 1982-09-13 累進多焦点レンズ Granted JPS5948732A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15909282A JPS5948732A (ja) 1982-09-13 1982-09-13 累進多焦点レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15909282A JPS5948732A (ja) 1982-09-13 1982-09-13 累進多焦点レンズ

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP22813187A Division JPS6371825A (ja) 1987-09-11 1987-09-11 塁進多焦点レンズ

Publications (2)

Publication Number Publication Date
JPS5948732A JPS5948732A (ja) 1984-03-21
JPS6342764B2 true JPS6342764B2 (enrdf_load_stackoverflow) 1988-08-25

Family

ID=15686056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15909282A Granted JPS5948732A (ja) 1982-09-13 1982-09-13 累進多焦点レンズ

Country Status (1)

Country Link
JP (1) JPS5948732A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744646A4 (en) * 1994-10-06 2000-05-24 Seiko Epson Corp OPTICAL GLASSES WITH PROGRESSIVE CURVING AND MULTIFOCUS AND METHOD FOR THE PRODUCTION THEREOF

Also Published As

Publication number Publication date
JPS5948732A (ja) 1984-03-21

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