JPS5814809A - ビデオデイスク用対物レンズ - Google Patents

ビデオデイスク用対物レンズ

Info

Publication number
JPS5814809A
JPS5814809A JP11317681A JP11317681A JPS5814809A JP S5814809 A JPS5814809 A JP S5814809A JP 11317681 A JP11317681 A JP 11317681A JP 11317681 A JP11317681 A JP 11317681A JP S5814809 A JPS5814809 A JP S5814809A
Authority
JP
Japan
Prior art keywords
lens
group
focal length
objective lens
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.)
Granted
Application number
JP11317681A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6131448B2 (enrdf_load_stackoverflow
Inventor
Takahiro Sugiyama
孝浩 杉山
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 true JPS5814809A (ja) 1983-01-27
JPS6131448B2 JPS6131448B2 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11500181B2 (en) * 2018-03-19 2022-11-15 Genius Electronic Optical (Xiamen) Co., Ltd. Optical imaging lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11500181B2 (en) * 2018-03-19 2022-11-15 Genius Electronic Optical (Xiamen) Co., Ltd. Optical imaging lens

Also Published As

Publication number Publication date
JPS6131448B2 (enrdf_load_stackoverflow) 1986-07-21

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