JPS57212419A - Automatic focusing camera - Google Patents

Automatic focusing camera

Info

Publication number
JPS57212419A
JPS57212419A JP9872381A JP9872381A JPS57212419A JP S57212419 A JPS57212419 A JP S57212419A JP 9872381 A JP9872381 A JP 9872381A JP 9872381 A JP9872381 A JP 9872381A JP S57212419 A JPS57212419 A JP S57212419A
Authority
JP
Japan
Prior art keywords
lever
lens
extension
release
automatic focusing
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
JP9872381A
Other languages
Japanese (ja)
Inventor
Yukio Ogawa
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
Priority to JP9872381A priority Critical patent/JPS57212419A/en
Publication of JPS57212419A publication Critical patent/JPS57212419A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To realize both the simplification and miniaturization of the mechanism of an automatic focusing camera in which a lens is stopped at the prescribed extension position at a moment of release, by performing the start and end of the lens extension with an electromagnet. CONSTITUTION:When a coil 63 conducts by releasing operation, an armature 61 attracted by a permanent magnet 62 is detached. At the same time, a lever 60 turns right to push a lever 67. Thus the hook of a long lever 8 is released, and then only the lever 8 moves left to release a fan-shape gear 6. At the same time, a projection 8e shunts to release a lever 70. When contact is secured between the lever 70 and a pin 60b, a spring 68 presses again the lever 60 to a magnetic pole to shunt a pawl 64 from a ratchet wheel 32 to start the extension of a lens. The coil conducts when the lens reaches a prescribed positon, and a spring 71 which is charged again by a projection 8f turns the lever 60. Thus the pawl 64 engages the ratchet 32 to stop the extension of the lens.
JP9872381A 1981-06-25 1981-06-25 Automatic focusing camera Pending JPS57212419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9872381A JPS57212419A (en) 1981-06-25 1981-06-25 Automatic focusing camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9872381A JPS57212419A (en) 1981-06-25 1981-06-25 Automatic focusing camera

Publications (1)

Publication Number Publication Date
JPS57212419A true JPS57212419A (en) 1982-12-27

Family

ID=14227432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9872381A Pending JPS57212419A (en) 1981-06-25 1981-06-25 Automatic focusing camera

Country Status (1)

Country Link
JP (1) JPS57212419A (en)

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