JPS55596A - Telephoto lens body - Google Patents

Telephoto lens body

Info

Publication number
JPS55596A
JPS55596A JP6774179A JP6774179A JPS55596A JP S55596 A JPS55596 A JP S55596A JP 6774179 A JP6774179 A JP 6774179A JP 6774179 A JP6774179 A JP 6774179A JP S55596 A JPS55596 A JP S55596A
Authority
JP
Japan
Prior art keywords
lens group
optical axis
adjusting
distance
barrel
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
JP6774179A
Other languages
Japanese (ja)
Other versions
JPS5640322B2 (en
Inventor
Kikuo Momiyama
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 JP6774179A priority Critical patent/JPS55596A/en
Publication of JPS55596A publication Critical patent/JPS55596A/en
Publication of JPS5640322B2 publication Critical patent/JPS5640322B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Abstract

PURPOSE: To achieve the improvement of operating characteristic and the prevention of the degradation of spherical aberrations by constituting the rear lens group with stationary and movable lens groups and providing a stop mechanism to the operating member for adjusting its distance.
CONSTITUTION: A rear lens group L2 is constituted by a stationary lens group L21 and a movable lens group L22. The lens group L22 is held to a moving barrel 4 slidably fitted to the inner side of a guide barrel 3. An operating member 5 for adjusting its distance is fitted turnably to the outside of the guide barrel 3 and has a cam groove 5a. When the member 5 is turned at the adjusting the distance, the moving barrel 4 is pushed by the cam groove 5a with its roller 7 being held engaged in the guide groove 3a and comes to slide linearly in the optical axis direction, thus changing the position of the lens group L22 held to the moving barrel 4 on the optical axis and changing the imaging position of the entire lens system on the optical axis.
COPYRIGHT: (C)1980,JPO&Japio
JP6774179A 1979-05-31 1979-05-31 Telephoto lens body Granted JPS55596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6774179A JPS55596A (en) 1979-05-31 1979-05-31 Telephoto lens body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6774179A JPS55596A (en) 1979-05-31 1979-05-31 Telephoto lens body

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP7416874A Division JPS513628A (en) 1974-04-25 1974-06-28 BOENRENZUKYOTAI

Publications (2)

Publication Number Publication Date
JPS55596A true JPS55596A (en) 1980-01-05
JPS5640322B2 JPS5640322B2 (en) 1981-09-19

Family

ID=13353669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6774179A Granted JPS55596A (en) 1979-05-31 1979-05-31 Telephoto lens body

Country Status (1)

Country Link
JP (1) JPS55596A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57129401A (en) * 1981-02-04 1982-08-11 Olympus Optical Co Ltd Sliding device for lens
DE102004009042B3 (en) * 2004-02-23 2005-09-15 Leica Camera Ag Interchangeable lens for rangefinder cameras

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57129401A (en) * 1981-02-04 1982-08-11 Olympus Optical Co Ltd Sliding device for lens
DE102004009042B3 (en) * 2004-02-23 2005-09-15 Leica Camera Ag Interchangeable lens for rangefinder cameras
US6992845B2 (en) 2004-02-23 2006-01-31 Leica Camera Ag Interchangeable objective for integrated rangefinder cameras

Also Published As

Publication number Publication date
JPS5640322B2 (en) 1981-09-19

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