JPS56162727A - Focusing device of zoom lens - Google Patents

Focusing device of zoom lens

Info

Publication number
JPS56162727A
JPS56162727A JP6726780A JP6726780A JPS56162727A JP S56162727 A JPS56162727 A JP S56162727A JP 6726780 A JP6726780 A JP 6726780A JP 6726780 A JP6726780 A JP 6726780A JP S56162727 A JPS56162727 A JP S56162727A
Authority
JP
Japan
Prior art keywords
lens group
lens
cam groove
moved
along
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
JP6726780A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0119121B2 (cs
Inventor
Mitsuo Yasukuni
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 JP6726780A priority Critical patent/JPS56162727A/ja
Publication of JPS56162727A publication Critical patent/JPS56162727A/ja
Publication of JPH0119121B2 publication Critical patent/JPH0119121B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Lens Barrels (AREA)
JP6726780A 1980-05-20 1980-05-20 Focusing device of zoom lens Granted JPS56162727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6726780A JPS56162727A (en) 1980-05-20 1980-05-20 Focusing device of zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6726780A JPS56162727A (en) 1980-05-20 1980-05-20 Focusing device of zoom lens

Publications (2)

Publication Number Publication Date
JPS56162727A true JPS56162727A (en) 1981-12-14
JPH0119121B2 JPH0119121B2 (cs) 1989-04-10

Family

ID=13340007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6726780A Granted JPS56162727A (en) 1980-05-20 1980-05-20 Focusing device of zoom lens

Country Status (1)

Country Link
JP (1) JPS56162727A (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973705U (ja) * 1982-11-09 1984-05-18 キヤノン株式会社 近接合焦機構を備えたカメラ
JPS59148012A (ja) * 1983-02-14 1984-08-24 Matsushita Electric Ind Co Ltd ズ−ムレンズ装置
US4609260A (en) * 1983-05-20 1986-09-02 Canon Kabushiki Kaisha Automatic focusing apparatus for zoom lens
US5258802A (en) * 1989-04-30 1993-11-02 Minolta Camera Kabushiki Kaisha Camera system which compensates for defocusing during operation
US5274414A (en) * 1988-08-05 1993-12-28 Minolta Camera Kabushiki Kaisha Camera having a varifocal lens

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092127A (cs) * 1973-12-14 1975-07-23
JPS5266445A (en) * 1975-11-27 1977-06-01 Fuji Photo Optical Co Ltd Zoom lens
JPS53116828A (en) * 1977-03-23 1978-10-12 Bell & Howell Japan Autoofocusing system for zoom lens
JPS5439630A (en) * 1977-09-05 1979-03-27 Fuji Photo Optical Co Ltd Focus matching preannouncement display device
JPS5540447A (en) * 1978-09-14 1980-03-21 Olympus Optical Co Ltd Image correcting method in zoom lens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092127A (cs) * 1973-12-14 1975-07-23
JPS5266445A (en) * 1975-11-27 1977-06-01 Fuji Photo Optical Co Ltd Zoom lens
JPS53116828A (en) * 1977-03-23 1978-10-12 Bell & Howell Japan Autoofocusing system for zoom lens
JPS5439630A (en) * 1977-09-05 1979-03-27 Fuji Photo Optical Co Ltd Focus matching preannouncement display device
JPS5540447A (en) * 1978-09-14 1980-03-21 Olympus Optical Co Ltd Image correcting method in zoom lens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973705U (ja) * 1982-11-09 1984-05-18 キヤノン株式会社 近接合焦機構を備えたカメラ
JPS59148012A (ja) * 1983-02-14 1984-08-24 Matsushita Electric Ind Co Ltd ズ−ムレンズ装置
US4609260A (en) * 1983-05-20 1986-09-02 Canon Kabushiki Kaisha Automatic focusing apparatus for zoom lens
US5274414A (en) * 1988-08-05 1993-12-28 Minolta Camera Kabushiki Kaisha Camera having a varifocal lens
US5258802A (en) * 1989-04-30 1993-11-02 Minolta Camera Kabushiki Kaisha Camera system which compensates for defocusing during operation

Also Published As

Publication number Publication date
JPH0119121B2 (cs) 1989-04-10

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