DE2533194C3 - Varioobjektiv - Google Patents

Varioobjektiv

Info

Publication number
DE2533194C3
DE2533194C3 DE2533194A DE2533194A DE2533194C3 DE 2533194 C3 DE2533194 C3 DE 2533194C3 DE 2533194 A DE2533194 A DE 2533194A DE 2533194 A DE2533194 A DE 2533194A DE 2533194 C3 DE2533194 C3 DE 2533194C3
Authority
DE
Germany
Prior art keywords
marg
lens
lens group
angle
varifocal
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
Application number
DE2533194A
Other languages
German (de)
English (en)
Other versions
DE2533194B2 (de
DE2533194A1 (de
Inventor
Keiji Yokohama Kanagawa Ikemori
Eiichi Tokio Takano
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE2533194A1 publication Critical patent/DE2533194A1/de
Publication of DE2533194B2 publication Critical patent/DE2533194B2/de
Application granted granted Critical
Publication of DE2533194C3 publication Critical patent/DE2533194C3/de
Expired 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
    • G02B15/145—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 five groups only
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE2533194A 1974-07-24 1975-07-24 Varioobjektiv Expired DE2533194C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49084945A JPS5114034A (enrdf_load_stackoverflow) 1974-07-24 1974-07-24

Publications (3)

Publication Number Publication Date
DE2533194A1 DE2533194A1 (de) 1976-02-12
DE2533194B2 DE2533194B2 (de) 1977-09-15
DE2533194C3 true DE2533194C3 (de) 1978-05-03

Family

ID=13844772

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2533194A Expired DE2533194C3 (de) 1974-07-24 1975-07-24 Varioobjektiv

Country Status (2)

Country Link
JP (1) JPS5114034A (enrdf_load_stackoverflow)
DE (1) DE2533194C3 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253281B (en) * 1991-02-15 1994-05-25 Asahi Optical Co Ltd Zoom lens
JP3102200B2 (ja) * 1993-03-31 2000-10-23 キヤノン株式会社 ズームレンズ
US6122111A (en) * 1997-07-25 2000-09-19 Panavision, Inc. High performance zoom lens system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD106718A5 (enrdf_load_stackoverflow) * 1972-09-14 1974-06-20

Also Published As

Publication number Publication date
JPS5114034A (enrdf_load_stackoverflow) 1976-02-04
DE2533194B2 (de) 1977-09-15
DE2533194A1 (de) 1976-02-12

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)