JPS547927A - Photographic lens of excellent focusing operation - Google Patents

Photographic lens of excellent focusing operation

Info

Publication number
JPS547927A
JPS547927A JP7350877A JP7350877A JPS547927A JP S547927 A JPS547927 A JP S547927A JP 7350877 A JP7350877 A JP 7350877A JP 7350877 A JP7350877 A JP 7350877A JP S547927 A JPS547927 A JP S547927A
Authority
JP
Japan
Prior art keywords
photographic lens
focusing operation
excellent focusing
group
lenses
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
JP7350877A
Other languages
Japanese (ja)
Other versions
JPS6032848B2 (en
Inventor
Yasuhisa Sato
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP7350877A priority Critical patent/JPS6032848B2/en
Publication of JPS547927A publication Critical patent/JPS547927A/en
Publication of JPS6032848B2 publication Critical patent/JPS6032848B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)

Abstract

PURPOSE: To eliminate the aberration fluctuation of the whole system accompanying the variation in the distance to an object by arranging a second group of lenses having a positive finite transverse magnification in a converging light flux so that the second lens group is shifted in the direction of the optical axis so as to accomplish the focal adjustment.
COPYRIGHT: (C)1979,JPO&Japio
JP7350877A 1977-06-21 1977-06-21 Photographic lens with good focusing operability Expired JPS6032848B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7350877A JPS6032848B2 (en) 1977-06-21 1977-06-21 Photographic lens with good focusing operability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7350877A JPS6032848B2 (en) 1977-06-21 1977-06-21 Photographic lens with good focusing operability

Publications (2)

Publication Number Publication Date
JPS547927A true JPS547927A (en) 1979-01-20
JPS6032848B2 JPS6032848B2 (en) 1985-07-30

Family

ID=13520250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7350877A Expired JPS6032848B2 (en) 1977-06-21 1977-06-21 Photographic lens with good focusing operability

Country Status (1)

Country Link
JP (1) JPS6032848B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741608A (en) * 1980-08-27 1982-03-08 Nippon Kogaku Kk <Nikon> Lens for closeup photographing
JPS5875107A (en) * 1981-10-29 1983-05-06 Asahi Optical Co Ltd Telephoto lens
JPS6028612A (en) * 1983-07-27 1985-02-13 Nippon Kogaku Kk <Nikon> High-aperture ratio telephoto lens
WO2017138250A1 (en) * 2016-02-12 2017-08-17 ソニー株式会社 Imaging lens and imaging device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741608A (en) * 1980-08-27 1982-03-08 Nippon Kogaku Kk <Nikon> Lens for closeup photographing
JPS6242252B2 (en) * 1980-08-27 1987-09-07 Nippon Kogaku Kk
JPS5875107A (en) * 1981-10-29 1983-05-06 Asahi Optical Co Ltd Telephoto lens
JPS6132650B2 (en) * 1981-10-29 1986-07-28 Asahi Optical Co Ltd
JPS6028612A (en) * 1983-07-27 1985-02-13 Nippon Kogaku Kk <Nikon> High-aperture ratio telephoto lens
JPH0412443B2 (en) * 1983-07-27 1992-03-04 Nippon Kogaku Kk
WO2017138250A1 (en) * 2016-02-12 2017-08-17 ソニー株式会社 Imaging lens and imaging device

Also Published As

Publication number Publication date
JPS6032848B2 (en) 1985-07-30

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