FR2224768B1 - - Google Patents

Info

Publication number
FR2224768B1
FR2224768B1 FR7411815A FR7411815A FR2224768B1 FR 2224768 B1 FR2224768 B1 FR 2224768B1 FR 7411815 A FR7411815 A FR 7411815A FR 7411815 A FR7411815 A FR 7411815A FR 2224768 B1 FR2224768 B1 FR 2224768B1
Authority
FR
France
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
FR7411815A
Other languages
French (fr)
Other versions
FR2224768A1 (enrdf_load_stackoverflow
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 FR2224768A1 publication Critical patent/FR2224768A1/fr
Application granted granted Critical
Publication of FR2224768B1 publication Critical patent/FR2224768B1/fr
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
    • G02B15/22—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)
FR7411815A 1973-04-04 1974-04-03 Expired FR2224768B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4012473U JPS49141841U (enrdf_load_stackoverflow) 1973-04-04 1973-04-04

Publications (2)

Publication Number Publication Date
FR2224768A1 FR2224768A1 (enrdf_load_stackoverflow) 1974-10-31
FR2224768B1 true FR2224768B1 (enrdf_load_stackoverflow) 1976-12-17

Family

ID=12572061

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411815A Expired FR2224768B1 (enrdf_load_stackoverflow) 1973-04-04 1974-04-03

Country Status (4)

Country Link
JP (1) JPS49141841U (enrdf_load_stackoverflow)
DE (1) DE2416400A1 (enrdf_load_stackoverflow)
FR (1) FR2224768B1 (enrdf_load_stackoverflow)
GB (1) GB1461614A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57186872A (en) * 1981-05-13 1982-11-17 Hitachi Ltd Auto-focusing device of video camera

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832387B1 (enrdf_load_stackoverflow) * 1969-07-26 1973-10-05

Also Published As

Publication number Publication date
GB1461614A (en) 1977-01-13
DE2416400A1 (de) 1974-10-24
FR2224768A1 (enrdf_load_stackoverflow) 1974-10-31
JPS49141841U (enrdf_load_stackoverflow) 1974-12-06

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