CA1201318A - Rotation control mechanism for diaphragm operating ring in interchangeable objective - Google Patents

Rotation control mechanism for diaphragm operating ring in interchangeable objective

Info

Publication number
CA1201318A
CA1201318A CA000434477A CA434477A CA1201318A CA 1201318 A CA1201318 A CA 1201318A CA 000434477 A CA000434477 A CA 000434477A CA 434477 A CA434477 A CA 434477A CA 1201318 A CA1201318 A CA 1201318A
Authority
CA
Canada
Prior art keywords
diaphragm
rotation control
ring
range
locking groove
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
CA000434477A
Other languages
English (en)
French (fr)
Inventor
Etsuro Nishio
Zenichi Okura
Yoshihiro Hama
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Application granted granted Critical
Publication of CA1201318A publication Critical patent/CA1201318A/en
Expired 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/30—Safety arrangements for control of exposure
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • G03B9/07—Diaphragms with means for presetting the diaphragm
    • 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)
  • Diaphragms For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Structure And Mechanism Of Cameras (AREA)
CA000434477A 1982-08-16 1983-08-12 Rotation control mechanism for diaphragm operating ring in interchangeable objective Expired CA1201318A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1982-123842 1982-08-16
JP1982123842U JPS5927530U (ja) 1982-08-16 1982-08-16 交換レンズの絞操作環の回動制御機構

Publications (1)

Publication Number Publication Date
CA1201318A true CA1201318A (en) 1986-03-04

Family

ID=14870734

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000434477A Expired CA1201318A (en) 1982-08-16 1983-08-12 Rotation control mechanism for diaphragm operating ring in interchangeable objective

Country Status (4)

Country Link
US (1) US4505564A (en, 2012)
JP (1) JPS5927530U (en, 2012)
KR (1) KR860000938Y1 (en, 2012)
CA (1) CA1201318A (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3277133B2 (ja) * 1996-12-26 2002-04-22 シャープ株式会社 電子写真感光体用塗布液組成物およびそれを用いる電子写真感光体の製造方法
DE102013022013B4 (de) * 2013-12-20 2017-08-17 Carl Zeiss Ag Kamerawechselobjektiv und Verfahren zum Aktivieren und Deaktivieren einer Rastvorrichtung einer Blende eines Kamerawechselobjektivs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086993B (de) * 1953-12-31 1960-08-11 Zeiss Ikon Ag Photographische Kamera mit Blendenvorwahl
US2878738A (en) * 1955-05-05 1959-03-24 Schneider Co Optische Werke Preselector for optical diaphragms
US3135185A (en) * 1960-03-29 1964-06-02 Paillard Sa Device for adjusting the diaphragm of an objective

Also Published As

Publication number Publication date
KR850002034U (ko) 1985-04-22
KR860000938Y1 (ko) 1986-05-21
JPS5927530U (ja) 1984-02-21
US4505564A (en) 1985-03-19
JPS6339689Y2 (en, 2012) 1988-10-18

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Legal Events

Date Code Title Description
MKEX Expiry