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GB2303940B - Zoom lens barrel - Google Patents

Zoom lens barrel

Info

Publication number
GB2303940B
GB2303940B GB9619149A GB9619149A GB2303940B GB 2303940 B GB2303940 B GB 2303940B GB 9619149 A GB9619149 A GB 9619149A GB 9619149 A GB9619149 A GB 9619149A GB 2303940 B GB2303940 B GB 2303940B
Authority
GB
United Kingdom
Prior art keywords
lens barrel
zoom lens
zoom
barrel
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.)
Expired - Fee Related
Application number
GB9619149A
Other versions
GB2303940A (en
GB9619149D0 (en
Inventor
Hiroshi Nomura
Shinsuke Kohmoto
Takamitsu Sasaki
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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
Priority claimed from JP21244093A external-priority patent/JPH0763976A/en
Priority claimed from JP27574293A external-priority patent/JP3326253B2/en
Priority claimed from JP33827793A external-priority patent/JP3380022B2/en
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority claimed from GB9417285A external-priority patent/GB2281407B/en
Publication of GB9619149D0 publication Critical patent/GB9619149D0/en
Publication of GB2303940A publication Critical patent/GB2303940A/en
Application granted granted Critical
Publication of GB2303940B publication Critical patent/GB2303940B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02B7/102—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 controlled by a microcomputer
    • 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)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lens Barrels (AREA)
GB9619149A 1993-08-27 1994-08-25 Zoom lens barrel Expired - Fee Related GB2303940B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP21244093A JPH0763976A (en) 1993-08-27 1993-08-27 Multistage zoom lens barrel
JP27574293A JP3326253B2 (en) 1993-11-04 1993-11-04 3-stage extension zoom lens barrel
JP33827793A JP3380022B2 (en) 1993-12-28 1993-12-28 Multi-stage extension zoom lens barrel
GB9417285A GB2281407B (en) 1993-08-27 1994-08-25 Zoom lens barrel

Publications (3)

Publication Number Publication Date
GB9619149D0 GB9619149D0 (en) 1996-10-23
GB2303940A GB2303940A (en) 1997-03-05
GB2303940B true GB2303940B (en) 1997-05-07

Family

ID=27451204

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9619149A Expired - Fee Related GB2303940B (en) 1993-08-27 1994-08-25 Zoom lens barrel

Country Status (1)

Country Link
GB (1) GB2303940B (en)

Also Published As

Publication number Publication date
GB2303940A (en) 1997-03-05
GB9619149D0 (en) 1996-10-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070825