DE2416400A1 - Zoomobjektiv - Google Patents

Zoomobjektiv

Info

Publication number
DE2416400A1
DE2416400A1 DE19742416400 DE2416400A DE2416400A1 DE 2416400 A1 DE2416400 A1 DE 2416400A1 DE 19742416400 DE19742416400 DE 19742416400 DE 2416400 A DE2416400 A DE 2416400A DE 2416400 A1 DE2416400 A1 DE 2416400A1
Authority
DE
Germany
Prior art keywords
zoom
lens group
changeable
beam splitter
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
DE19742416400
Other languages
German (de)
English (en)
Inventor
Ryusho Hirose
Atsushi Someya
Eiichi Takano
Sadahiko Tsuji
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 DE2416400A1 publication Critical patent/DE2416400A1/de
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
    • G02B15/22—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 movable lens means specially adapted for focusing at close distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE19742416400 1973-04-04 1974-04-04 Zoomobjektiv Pending DE2416400A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4012473U JPS49141841U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-04-04 1973-04-04

Publications (1)

Publication Number Publication Date
DE2416400A1 true DE2416400A1 (de) 1974-10-24

Family

ID=12572061

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742416400 Pending DE2416400A1 (de) 1973-04-04 1974-04-04 Zoomobjektiv

Country Status (4)

Country Link
JP (1) JPS49141841U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2416400A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2224768B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1461614A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217884A1 (de) * 1981-05-13 1982-12-09 Hitachi, Ltd., Tokyo Automatisches scharfeinstellsystem fuer videokamera

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832387B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-07-26 1973-10-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217884A1 (de) * 1981-05-13 1982-12-09 Hitachi, Ltd., Tokyo Automatisches scharfeinstellsystem fuer videokamera

Also Published As

Publication number Publication date
GB1461614A (en) 1977-01-13
FR2224768B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-12-17
FR2224768A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-10-31
JPS49141841U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-12-06

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