JPS5269642A - Multifocal lens - Google Patents

Multifocal lens

Info

Publication number
JPS5269642A
JPS5269642A JP14606875A JP14606875A JPS5269642A JP S5269642 A JPS5269642 A JP S5269642A JP 14606875 A JP14606875 A JP 14606875A JP 14606875 A JP14606875 A JP 14606875A JP S5269642 A JPS5269642 A JP S5269642A
Authority
JP
Japan
Prior art keywords
multifocal lens
fabrication
lens
incresae
polymerizing
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.)
Granted
Application number
JP14606875A
Other languages
English (en)
Other versions
JPS5848884B2 (ja
Inventor
Masaru Egawa
Akihiko Kawachi
Hideaki Umezaki
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 JP14606875A priority Critical patent/JPS5848884B2/ja
Publication of JPS5269642A publication Critical patent/JPS5269642A/ja
Publication of JPS5848884B2 publication Critical patent/JPS5848884B2/ja
Expired 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
JP14606875A 1975-12-08 1975-12-08 タジユウシヨウテンレンズ Expired JPS5848884B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14606875A JPS5848884B2 (ja) 1975-12-08 1975-12-08 タジユウシヨウテンレンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14606875A JPS5848884B2 (ja) 1975-12-08 1975-12-08 タジユウシヨウテンレンズ

Publications (2)

Publication Number Publication Date
JPS5269642A true JPS5269642A (en) 1977-06-09
JPS5848884B2 JPS5848884B2 (ja) 1983-10-31

Family

ID=15399347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14606875A Expired JPS5848884B2 (ja) 1975-12-08 1975-12-08 タジユウシヨウテンレンズ

Country Status (1)

Country Link
JP (1) JPS5848884B2 (ja)

Also Published As

Publication number Publication date
JPS5848884B2 (ja) 1983-10-31

Similar Documents

Publication Publication Date Title
JPS51125486A (en) A process for producing transparent plastic shaped articles
JPS51125491A (en) A process for producing transparent plastic shaped articles
JPS51148788A (en) A process for preparing hydrophilic polymers
JPS52117985A (en) Photosensitive polymer composition
JPS537787A (en) Copolymers for use in lenses and their preparation
JPS5215588A (en) Process for polymerizing liquid olefin polymers
JPS523684A (en) Process for preparing ropylene copolymer
JPS5269642A (en) Multifocal lens
JPS51145592A (en) A process for preparing graft polymer based on fluorine-containing bac kbone polymer
JPS52138146A (en) High molecular optical-guide pass production
JPS5352592A (en) Continuous productin of rubbver-reinforced thermoplastic resin
JPS51121100A (en) Polymerization of 2-substituted-2-oxazolines
JPS52146218A (en) Positive type radiation sensitive material
JPS51148790A (en) A process for producing thermoplastic resins
JPS52121085A (en) Reactive high polymers
JPS5249852A (en) Lens
JPS51125495A (en) A process for producing high-impact resins with improved moldability
JPS5215321A (en) Photosensitive resinous composition
JPS51129487A (en) A process for producing high-impact resin
JPS5328685A (en) Preparation of styrene (type) polymers
JPS51129478A (en) A process for producing vinyl chloride polymer with low degree of poly merization
JPS51131587A (en) A process for polymerizing acrylonitrile
JPS5272787A (en) Process for polymerizing vinyl chloride
JPS5388895A (en) Preparation of photochromic phlymeric material
JPS5336253A (en) Multifocus lens