JPS55144214A - Lens barrel capable of adjusting focus automatically and manually - Google Patents

Lens barrel capable of adjusting focus automatically and manually

Info

Publication number
JPS55144214A
JPS55144214A JP5366379A JP5366379A JPS55144214A JP S55144214 A JPS55144214 A JP S55144214A JP 5366379 A JP5366379 A JP 5366379A JP 5366379 A JP5366379 A JP 5366379A JP S55144214 A JPS55144214 A JP S55144214A
Authority
JP
Japan
Prior art keywords
tube
lens group
group holding
shift
lens
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
JP5366379A
Other languages
Japanese (ja)
Other versions
JPS624686B2 (en
Inventor
Togo Teramoto
Shuzo Matsushita
Toshio Kobori
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP5366379A priority Critical patent/JPS55144214A/en
Priority to US06/097,236 priority patent/US4272174A/en
Publication of JPS55144214A publication Critical patent/JPS55144214A/en
Publication of JPS624686B2 publication Critical patent/JPS624686B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Lens Barrels (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE: To move the lens groups largely with small driving power, by constituting so that the shift of lens group holding tube to the fixed tube may be the sum of the shift of movable tube to the fixed tube and the shift of lens holding tube to the movable tube.
CONSTITUTION: To change from manual focal adjustment to automatic focal adjustment, a focus ring 2 is adjusted to the infinite focusing position, and an automatic and manual focal adjustment selector button 10 is depressed. Then, a lock member 24 is pushed down, and the second movable tube 8 becomes rotatable, and a power switch for automatic focusing 26 is closed so that a drive lever 30 is rotated around the optical axis. Hence, the second movable tube 8 is rotated and moves in the direction of optical axis. Due to rotation of the second movable tube 8, a pair of pins 8a, 8b planted in this tube respectively push cam grooves 20a and 20b of the second lens group holding tube 30, and the second lens group holding tube 20 moves together with the first lens group holding tube 22, so that the lens groups may be moved largely with a small driving power.
COPYRIGHT: (C)1980,JPO&Japio
JP5366379A 1978-11-25 1979-04-30 Lens barrel capable of adjusting focus automatically and manually Granted JPS55144214A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5366379A JPS55144214A (en) 1979-04-30 1979-04-30 Lens barrel capable of adjusting focus automatically and manually
US06/097,236 US4272174A (en) 1978-11-25 1979-11-26 Automatic and manual focus control lens barrel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5366379A JPS55144214A (en) 1979-04-30 1979-04-30 Lens barrel capable of adjusting focus automatically and manually

Publications (2)

Publication Number Publication Date
JPS55144214A true JPS55144214A (en) 1980-11-11
JPS624686B2 JPS624686B2 (en) 1987-01-31

Family

ID=12949085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5366379A Granted JPS55144214A (en) 1978-11-25 1979-04-30 Lens barrel capable of adjusting focus automatically and manually

Country Status (1)

Country Link
JP (1) JPS55144214A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165125A (en) * 1980-05-23 1981-12-18 Kyocera Corp Automatic manual exchange lens
JPS58195626A (en) * 1982-05-11 1983-11-14 Shozo Ogura Back-filling injection method of sheet pile
JPS58182903U (en) * 1982-05-28 1983-12-06 京セラ株式会社 Manual autofocus switch for autofocus lenses
JPS5975229A (en) * 1982-10-22 1984-04-27 Kyocera Corp Automatic focus adjusting camera capable of manual focus adjustment
JPS6346418A (en) * 1987-05-26 1988-02-27 Olympus Optical Co Ltd Autofocusing camera

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165125A (en) * 1980-05-23 1981-12-18 Kyocera Corp Automatic manual exchange lens
JPS6333685B2 (en) * 1980-05-23 1988-07-06 Kyosera Kk
JPS58195626A (en) * 1982-05-11 1983-11-14 Shozo Ogura Back-filling injection method of sheet pile
JPS58182903U (en) * 1982-05-28 1983-12-06 京セラ株式会社 Manual autofocus switch for autofocus lenses
JPS5975229A (en) * 1982-10-22 1984-04-27 Kyocera Corp Automatic focus adjusting camera capable of manual focus adjustment
JPS6346418A (en) * 1987-05-26 1988-02-27 Olympus Optical Co Ltd Autofocusing camera

Also Published As

Publication number Publication date
JPS624686B2 (en) 1987-01-31

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