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JPS5730809A - Interchangeable lens permitting automatic focusing - Google Patents

Interchangeable lens permitting automatic focusing

Info

Publication number
JPS5730809A
JPS5730809A JP10602380A JP10602380A JPS5730809A JP S5730809 A JPS5730809 A JP S5730809A JP 10602380 A JP10602380 A JP 10602380A JP 10602380 A JP10602380 A JP 10602380A JP S5730809 A JPS5730809 A JP S5730809A
Authority
JP
Japan
Prior art keywords
ring
accomplished
hand
turning
interchangeable 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.)
Granted
Application number
JP10602380A
Other languages
Japanese (ja)
Other versions
JPS6212887B2 (en
Inventor
Riichi Atsuta
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.)
Kyocera Corp
Yashica Co Ltd
Original Assignee
Kyocera Corp
Yashica Co Ltd
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 Kyocera Corp, Yashica Co Ltd filed Critical Kyocera Corp
Priority to JP10602380A priority Critical patent/JPS5730809A/en
Publication of JPS5730809A publication Critical patent/JPS5730809A/en
Publication of JPS6212887B2 publication Critical patent/JPS6212887B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Diaphragms For Cameras (AREA)

Abstract

PURPOSE:To solve problems to be caused by touching by hand or the like in operation by providing an effective protecting wall to the lower side part of an interchangeable lens to protect movable parts. CONSTITUTION:With an AF lens, manual focusing (MF) is accomplished by manually rotating a distance ring 6, and automatic focusing AF is accomplished by turning a pin 61 from camera body side. In either case, turning the ring 6 turns a helicoid ring 7 because 6a and 7a parts are held coupled. The ring 7 is moved by the helicoid effect between the ring 7 and a stationary member 2, and this turning moves a lens barrel 8 in an optical axis direction, whereby focusing is accomplished. The lower side 3b of an outside barrel 3 is extended so as to envelop the ring 6, thus preventing the ring 6 from being touched by the operator's hand or the like. Thereby, the problems to be caused by the touching of the operator's hand or the like are solved.
JP10602380A 1980-08-01 1980-08-01 Interchangeable lens permitting automatic focusing Granted JPS5730809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10602380A JPS5730809A (en) 1980-08-01 1980-08-01 Interchangeable lens permitting automatic focusing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10602380A JPS5730809A (en) 1980-08-01 1980-08-01 Interchangeable lens permitting automatic focusing

Publications (2)

Publication Number Publication Date
JPS5730809A true JPS5730809A (en) 1982-02-19
JPS6212887B2 JPS6212887B2 (en) 1987-03-23

Family

ID=14423041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10602380A Granted JPS5730809A (en) 1980-08-01 1980-08-01 Interchangeable lens permitting automatic focusing

Country Status (1)

Country Link
JP (1) JPS5730809A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0386312U (en) * 1989-12-21 1991-08-30

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01122495A (en) * 1987-11-06 1989-05-15 Akihiro Yoshida Document receipt device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0386312U (en) * 1989-12-21 1991-08-30

Also Published As

Publication number Publication date
JPS6212887B2 (en) 1987-03-23

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