JPS57124317A - Lens barrel - Google Patents

Lens barrel

Info

Publication number
JPS57124317A
JPS57124317A JP859281A JP859281A JPS57124317A JP S57124317 A JPS57124317 A JP S57124317A JP 859281 A JP859281 A JP 859281A JP 859281 A JP859281 A JP 859281A JP S57124317 A JPS57124317 A JP S57124317A
Authority
JP
Japan
Prior art keywords
cam
barrel
lens
zooming
cam 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
JP859281A
Other languages
Japanese (ja)
Other versions
JPS6143684B2 (en
Inventor
Hideyo Nozawa
Tsutomu Mitsuishi
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP859281A priority Critical patent/JPS57124317A/en
Publication of JPS57124317A publication Critical patent/JPS57124317A/en
Publication of JPS6143684B2 publication Critical patent/JPS6143684B2/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
    • G02B7/105—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 with movable lens means specially adapted for focusing at close distances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

PURPOSE:To achieve focusing succeeding to zooming in a zoom lens possible for macrophotographing by transferring said lens to a macro region by turning an operating knob of a zoom ring. CONSTITUTION:A fixed lens system 4 is provided at the rear end of a fixed barrel 1, a holding barrel 3 holding a focus lens system 2 is at the front end, the 1st cam barrel 5 is at the center recess and the 2nd cam barrel 6 is at the external circumference. The 1st and 2nd cam barrels are rotated incorporately with a pin 5a and a groove 6a, and the 2nd cam barrel only is slidable toward the light axis. Through the turning of both cam barrles, zoom systems 9, 10 make zooming back and forth. When a knob 7 on the 2nd cam barrel turns, the 2nd cam barrel is shifted axially by the operation of a deflection cam 7c with the lens 10, allowing to make easy for the focusing succeeding to zooming.
JP859281A 1981-01-24 1981-01-24 Lens barrel Granted JPS57124317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP859281A JPS57124317A (en) 1981-01-24 1981-01-24 Lens barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP859281A JPS57124317A (en) 1981-01-24 1981-01-24 Lens barrel

Publications (2)

Publication Number Publication Date
JPS57124317A true JPS57124317A (en) 1982-08-03
JPS6143684B2 JPS6143684B2 (en) 1986-09-29

Family

ID=11697248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP859281A Granted JPS57124317A (en) 1981-01-24 1981-01-24 Lens barrel

Country Status (1)

Country Link
JP (1) JPS57124317A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153502U (en) * 1983-03-31 1984-10-15 株式会社ニコン macro zoom lens
KR100378482B1 (en) * 2000-07-29 2003-03-29 삼성테크윈 주식회사 barrle assembly of zoom camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153502U (en) * 1983-03-31 1984-10-15 株式会社ニコン macro zoom lens
KR100378482B1 (en) * 2000-07-29 2003-03-29 삼성테크윈 주식회사 barrle assembly of zoom camera

Also Published As

Publication number Publication date
JPS6143684B2 (en) 1986-09-29

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