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JPS5336251A - Cemented lens - Google Patents

Cemented lens

Info

Publication number
JPS5336251A
JPS5336251A JP11118076A JP11118076A JPS5336251A JP S5336251 A JPS5336251 A JP S5336251A JP 11118076 A JP11118076 A JP 11118076A JP 11118076 A JP11118076 A JP 11118076A JP S5336251 A JPS5336251 A JP S5336251A
Authority
JP
Japan
Prior art keywords
focus lens
cemented lens
lens
progressive
progressive focus
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
JP11118076A
Other languages
Japanese (ja)
Other versions
JPS5922923B2 (en
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 JP11118076A priority Critical patent/JPS5922923B2/en
Publication of JPS5336251A publication Critical patent/JPS5336251A/en
Publication of JPS5922923B2 publication Critical patent/JPS5922923B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Eyeglasses (AREA)

Abstract

PURPOSE: In the production of a progressive focus lens having an astigmatism correcting function, the respective portions of lenses having the functions of a progressive focus lens and a single focus lens are cemented together, whereby the process of lens polishing after casting and polymerizing or after injection molding is saved.
COPYRIGHT: (C)1978,JPO&Japio
JP11118076A 1976-09-16 1976-09-16 laminated lens Expired JPS5922923B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11118076A JPS5922923B2 (en) 1976-09-16 1976-09-16 laminated lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11118076A JPS5922923B2 (en) 1976-09-16 1976-09-16 laminated lens

Publications (2)

Publication Number Publication Date
JPS5336251A true JPS5336251A (en) 1978-04-04
JPS5922923B2 JPS5922923B2 (en) 1984-05-30

Family

ID=14554511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11118076A Expired JPS5922923B2 (en) 1976-09-16 1976-09-16 laminated lens

Country Status (1)

Country Link
JP (1) JPS5922923B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067118A (en) * 1983-09-24 1985-04-17 Canon Inc Manufacture of optical element
EP0226403A2 (en) * 1985-12-04 1987-06-24 Mitsubishi Denki Kabushiki Kaisha Optical head apparatus
JPH0318502A (en) * 1989-06-15 1991-01-28 Ishikawajima Harima Heavy Ind Co Ltd Building method for rack steelwork

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067118A (en) * 1983-09-24 1985-04-17 Canon Inc Manufacture of optical element
JPH0142900B2 (en) * 1983-09-24 1989-09-18 Canon Kk
EP0226403A2 (en) * 1985-12-04 1987-06-24 Mitsubishi Denki Kabushiki Kaisha Optical head apparatus
JPH0318502A (en) * 1989-06-15 1991-01-28 Ishikawajima Harima Heavy Ind Co Ltd Building method for rack steelwork

Also Published As

Publication number Publication date
JPS5922923B2 (en) 1984-05-30

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