JPS5373150A - Zoom lens - Google Patents

Zoom lens

Info

Publication number
JPS5373150A
JPS5373150A JP14870977A JP14870977A JPS5373150A JP S5373150 A JPS5373150 A JP S5373150A JP 14870977 A JP14870977 A JP 14870977A JP 14870977 A JP14870977 A JP 14870977A JP S5373150 A JPS5373150 A JP S5373150A
Authority
JP
Japan
Prior art keywords
zoom lens
zoom
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.)
Pending
Application number
JP14870977A
Other languages
English (en)
Japanese (ja)
Inventor
Beezenmatsutaa Buarutaa
Buendeitsushiyu Irumugaruto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JPS5373150A publication Critical patent/JPS5373150A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
    • G02B15/177—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
    • G02B15/1445—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being negative
    • G02B15/144511—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being negative arranged -+-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP14870977A 1976-12-10 1977-12-09 Zoom lens Pending JPS5373150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT917676A AT346102B (de) 1976-12-10 1976-12-10 Pankratisches objektiv

Publications (1)

Publication Number Publication Date
JPS5373150A true JPS5373150A (en) 1978-06-29

Family

ID=3611841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14870977A Pending JPS5373150A (en) 1976-12-10 1977-12-09 Zoom lens

Country Status (4)

Country Link
JP (1) JPS5373150A (de)
AT (1) AT346102B (de)
DE (1) DE2754950A1 (de)
FR (1) FR2373803A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05297276A (ja) * 1992-04-21 1993-11-12 Elmo Co Ltd ワイドズームレンズ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2780309B2 (ja) * 1989-02-28 1998-07-30 ミノルタ株式会社 コンパクトなズームレンズ系

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924934A (en) * 1972-12-26 1975-12-09 David S Grey Compact seven element zoom lens with mechanical compensation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05297276A (ja) * 1992-04-21 1993-11-12 Elmo Co Ltd ワイドズームレンズ

Also Published As

Publication number Publication date
ATA917676A (de) 1978-02-15
FR2373803A1 (fr) 1978-07-07
AT346102B (de) 1978-10-25
DE2754950A1 (de) 1978-06-15

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