AT346102B - PANRATIC LENS - Google Patents

PANRATIC LENS

Info

Publication number
AT346102B
AT346102B AT917676A AT917676A AT346102B AT 346102 B AT346102 B AT 346102B AT 917676 A AT917676 A AT 917676A AT 917676 A AT917676 A AT 917676A AT 346102 B AT346102 B AT 346102B
Authority
AT
Austria
Prior art keywords
panratic
lens
panratic lens
Prior art date
Application number
AT917676A
Other languages
German (de)
Other versions
ATA917676A (en
Inventor
Walter Dipl Ing Besenmatter
Irmgard Wendisch
Original Assignee
Eumig
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 Eumig filed Critical Eumig
Priority to AT917676A priority Critical patent/AT346102B/en
Priority to FR7737163A priority patent/FR2373803A1/en
Priority to JP14870977A priority patent/JPS5373150A/en
Priority to DE19772754950 priority patent/DE2754950A1/en
Publication of ATA917676A publication Critical patent/ATA917676A/en
Application granted granted Critical
Publication of AT346102B publication Critical patent/AT346102B/en

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)
AT917676A 1976-12-10 1976-12-10 PANRATIC LENS AT346102B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT917676A AT346102B (en) 1976-12-10 1976-12-10 PANRATIC LENS
FR7737163A FR2373803A1 (en) 1976-12-10 1977-12-09 Pancratic lens with variable magnification attachment - has basic lens having fixed focal length and two displaceable lens elements (OE 15.2.78)
JP14870977A JPS5373150A (en) 1976-12-10 1977-12-09 Zoom lens
DE19772754950 DE2754950A1 (en) 1976-12-10 1977-12-09 PANRATIC LENS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT917676A AT346102B (en) 1976-12-10 1976-12-10 PANRATIC LENS

Publications (2)

Publication Number Publication Date
ATA917676A ATA917676A (en) 1978-02-15
AT346102B true AT346102B (en) 1978-10-25

Family

ID=3611841

Family Applications (1)

Application Number Title Priority Date Filing Date
AT917676A AT346102B (en) 1976-12-10 1976-12-10 PANRATIC LENS

Country Status (4)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2780309B2 (en) * 1989-02-28 1998-07-30 ミノルタ株式会社 Compact zoom lens system
JP2516522B2 (en) * 1992-04-21 1996-07-24 株式会社エルモ社 Wide zoom lens

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

Also Published As

Publication number Publication date
ATA917676A (en) 1978-02-15
DE2754950A1 (en) 1978-06-15
JPS5373150A (en) 1978-06-29
FR2373803A1 (en) 1978-07-07

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee