JPS62220915A - ２群ズ−ムレンズ - Google Patents

２群ズ−ムレンズ

Info

Publication number
JPS62220915A
JPS62220915A JP61064016A JP6401686A JPS62220915A JP S62220915 A JPS62220915 A JP S62220915A JP 61064016 A JP61064016 A JP 61064016A JP 6401686 A JP6401686 A JP 6401686A JP S62220915 A JPS62220915 A JP S62220915A
Authority
JP
Japan
Prior art keywords
lens
group
positive
object side
lens group
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
JP61064016A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0431564B2 (enrdf_load_stackoverflow
Inventor
Masakuni Tai
田井　正邦
Masashi Kobayashi
正史 小林
Kazumi Koike
小池　和巳
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.)
Tokina Optical Co Ltd
Original Assignee
Tokina Optical 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 Tokina Optical Co Ltd filed Critical Tokina Optical Co Ltd
Priority to JP61064016A priority Critical patent/JPS62220915A/ja
Publication of JPS62220915A publication Critical patent/JPS62220915A/ja
Publication of JPH0431564B2 publication Critical patent/JPH0431564B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only
    • G02B15/1425—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only the first group being negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP61064016A 1986-03-24 1986-03-24 ２群ズ−ムレンズ Granted JPS62220915A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61064016A JPS62220915A (ja) 1986-03-24 1986-03-24 ２群ズ−ムレンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61064016A JPS62220915A (ja) 1986-03-24 1986-03-24 ２群ズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS62220915A true JPS62220915A (ja) 1987-09-29
JPH0431564B2 JPH0431564B2 (enrdf_load_stackoverflow) 1992-05-26

Family

ID=13245944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61064016A Granted JPS62220915A (ja) 1986-03-24 1986-03-24 ２群ズ−ムレンズ

Country Status (1)

Country Link
JP (1) JPS62220915A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007052437A (ja) * 2005-08-18 2007-03-01 Asia Optical Co Ltd ズームレンズ
JP2014067066A (ja) * 2014-01-06 2014-04-17 Nikon Corp ズームレンズ系、及び、このズームレンズ系を備えた光学機器
CN110618518A (zh) * 2018-06-19 2019-12-27 株式会社理光 成像镜头系统及摄像装置
JP2022042928A (ja) * 2020-09-03 2022-03-15 ジョウシュウシ レイテック オプトロニクス カンパニーリミテッド 撮像光学レンズ
CN120010099A (zh) * 2025-01-15 2025-05-16 西安电子科技大学 大视场、大相对孔径的制冷型中波红外镜头和光学系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132207A (ja) * 1982-02-01 1983-08-06 Mamiya Koki Kk 広角ズ−ムレンズ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132207A (ja) * 1982-02-01 1983-08-06 Mamiya Koki Kk 広角ズ−ムレンズ

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007052437A (ja) * 2005-08-18 2007-03-01 Asia Optical Co Ltd ズームレンズ
JP2014067066A (ja) * 2014-01-06 2014-04-17 Nikon Corp ズームレンズ系、及び、このズームレンズ系を備えた光学機器
CN110618518A (zh) * 2018-06-19 2019-12-27 株式会社理光 成像镜头系统及摄像装置
CN110618518B (zh) * 2018-06-19 2021-11-02 株式会社理光 成像镜头系统及摄像装置
US11287606B2 (en) 2018-06-19 2022-03-29 Ricoh Company, Ltd. Imaging lens system and imaging device
JP2022042928A (ja) * 2020-09-03 2022-03-15 ジョウシュウシ レイテック オプトロニクス カンパニーリミテッド 撮像光学レンズ
US12105256B2 (en) 2020-09-03 2024-10-01 Changzhou Raytech Optronics Co., Ltd. Camera optical lens
CN120010099A (zh) * 2025-01-15 2025-05-16 西安电子科技大学 大视场、大相对孔径的制冷型中波红外镜头和光学系统
CN120010099B (zh) * 2025-01-15 2025-10-10 西安电子科技大学 大视场、大相对孔径的制冷型中波红外镜头和光学系统

Also Published As

Publication number Publication date
JPH0431564B2 (enrdf_load_stackoverflow) 1992-05-26

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees