JPS5717941A - Member for focusing plate unit exchange - Google Patents

Member for focusing plate unit exchange

Info

Publication number
JPS5717941A
JPS5717941A JP9300680A JP9300680A JPS5717941A JP S5717941 A JPS5717941 A JP S5717941A JP 9300680 A JP9300680 A JP 9300680A JP 9300680 A JP9300680 A JP 9300680A JP S5717941 A JPS5717941 A JP S5717941A
Authority
JP
Japan
Prior art keywords
exchange
holding part
coupling
focusing
focusing plate
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
JP9300680A
Other languages
English (en)
Japanese (ja)
Other versions
JPS646445B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Makoto Katsuma
Kenichi Niihori
Masayuki Suzuki
Hiroyasu Murakami
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 JP9300680A priority Critical patent/JPS5717941A/ja
Priority to DE3102979A priority patent/DE3102979C2/de
Priority to US06/230,272 priority patent/US4346973A/en
Publication of JPS5717941A publication Critical patent/JPS5717941A/ja
Publication of JPS646445B2 publication Critical patent/JPS646445B2/ja
Granted 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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
    • 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18—Focusing aids
    • G03B13/24—Focusing screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Viewfinders (AREA)
JP9300680A 1980-01-31 1980-07-08 Member for focusing plate unit exchange Granted JPS5717941A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9300680A JPS5717941A (en) 1980-07-08 1980-07-08 Member for focusing plate unit exchange
DE3102979A DE3102979C2 (de) 1980-01-31 1981-01-29 Austauschvorrichtung für eine Einstellscheibe bei einer einäugigen Spiegelreflexkamera
US06/230,272 US4346973A (en) 1980-01-31 1981-01-30 Focusing screen interchanging device in single lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9300680A JPS5717941A (en) 1980-07-08 1980-07-08 Member for focusing plate unit exchange

Publications (2)

Publication Number Publication Date
JPS5717941A true JPS5717941A (en) 1982-01-29
JPS646445B2 JPS646445B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-02-03

Family

ID=14070295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9300680A Granted JPS5717941A (en) 1980-01-31 1980-07-08 Member for focusing plate unit exchange

Country Status (1)

Country Link
JP (1) JPS5717941A (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
JP2007233312A (ja) * 2006-03-03 2007-09-13 Pentax Corp フォーカシングスクリーンの交換可能なカメラ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007233312A (ja) * 2006-03-03 2007-09-13 Pentax Corp フォーカシングスクリーンの交換可能なカメラ

Also Published As

Publication number Publication date
JPS646445B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-02-03

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