JPS6131448B2 - - Google Patents

Info

Publication number
JPS6131448B2
JPS6131448B2 JP11317681A JP11317681A JPS6131448B2 JP S6131448 B2 JPS6131448 B2 JP S6131448B2 JP 11317681 A JP11317681 A JP 11317681A JP 11317681 A JP11317681 A JP 11317681A JP S6131448 B2 JPS6131448 B2 JP S6131448B2
Authority
JP
Japan
Prior art keywords
lens
group
focal length
light source
spherical aberration
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
JP11317681A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5814809A (ja
Inventor
Takahiro Sugyama
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP11317681A priority Critical patent/JPS5814809A/ja
Publication of JPS5814809A publication Critical patent/JPS5814809A/ja
Publication of JPS6131448B2 publication Critical patent/JPS6131448B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP11317681A 1981-07-20 1981-07-20 ビデオデイスク用対物レンズ Granted JPS5814809A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11317681A JPS5814809A (ja) 1981-07-20 1981-07-20 ビデオデイスク用対物レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11317681A JPS5814809A (ja) 1981-07-20 1981-07-20 ビデオデイスク用対物レンズ

Publications (2)

Publication Number Publication Date
JPS5814809A JPS5814809A (ja) 1983-01-27
JPS6131448B2 true JPS6131448B2 (cs) 1986-07-21

Family

ID=14605473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11317681A Granted JPS5814809A (ja) 1981-07-20 1981-07-20 ビデオデイスク用対物レンズ

Country Status (1)

Country Link
JP (1) JPS5814809A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108459394B (zh) * 2018-03-19 2020-04-10 玉晶光电(厦门)有限公司 光学成像镜头

Also Published As

Publication number Publication date
JPS5814809A (ja) 1983-01-27

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