JPS55127532A - Single-lens reflex camera having electromagnetic driving source - Google Patents

Single-lens reflex camera having electromagnetic driving source

Info

Publication number
JPS55127532A
JPS55127532A JP3531279A JP3531279A JPS55127532A JP S55127532 A JPS55127532 A JP S55127532A JP 3531279 A JP3531279 A JP 3531279A JP 3531279 A JP3531279 A JP 3531279A JP S55127532 A JPS55127532 A JP S55127532A
Authority
JP
Japan
Prior art keywords
shutter
lock member
mirror
curtain
driving source
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
JP3531279A
Other languages
Japanese (ja)
Other versions
JPS6161086B2 (en
Inventor
Hirotsugu Sugiura
Nobuaki Date
Ryoichi Suzuki
Shuichiro Saito
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 JP3531279A priority Critical patent/JPS55127532A/en
Priority to US06/132,100 priority patent/US4313658A/en
Priority to FR8006619A priority patent/FR2452726A1/en
Priority to DE19803011693 priority patent/DE3011693C2/en
Priority to GB8010085A priority patent/GB2046457B/en
Publication of JPS55127532A publication Critical patent/JPS55127532A/en
Publication of JPS6161086B2 publication Critical patent/JPS6161086B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shutters For Cameras (AREA)
  • Cameras In General (AREA)

Abstract

PURPOSE: To make the controlling of shutter curtains accurate by providing means of holding shutter curtains before running.
CONSTITUTION: A shutter lock member 34 which is energized upward by a spring 34a and holding front and rear curtain driving arms 36, 38 by engaging with pawl parts 36a, 38a at its protruding parts 34a, 34c is provided. Then, when a mirror drive lever 18 turns to cause its protruding part 18a to turn a lever 51 clockwise against a spring 51a and mirror-up is completed, then the end 51b depresses the shutter lock member 34, causing its protrusions 34b, 34c to disengage from the pawl parts 36a, 38a. The shutter curtain driving arms 36, 38 are then released and then released and when the shutter lock member 34 is turned clockwise by a shaft 35, a shutter front curtain 42 opens the shutter opening, after this the shutter rear curtain 43 is closed by turning of a shaft 44. Hence, the shutter front curtain 42 does not start running until the mirror-up is finished, thus the accurate controlling is accomplished.
COPYRIGHT: (C)1980,JPO&Japio
JP3531279A 1979-03-26 1979-03-26 Single-lens reflex camera having electromagnetic driving source Granted JPS55127532A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP3531279A JPS55127532A (en) 1979-03-26 1979-03-26 Single-lens reflex camera having electromagnetic driving source
US06/132,100 US4313658A (en) 1979-03-26 1980-03-20 Camera having electromagnetic drive source
FR8006619A FR2452726A1 (en) 1979-03-26 1980-03-25 Shutter for SLR camera - is in form of front and rear shutter curtains operated by electromagnetic drive shafts
DE19803011693 DE3011693C2 (en) 1979-03-26 1980-03-26 Lock for a single-lens reflex camera
GB8010085A GB2046457B (en) 1979-03-26 1980-03-26 Camera shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3531279A JPS55127532A (en) 1979-03-26 1979-03-26 Single-lens reflex camera having electromagnetic driving source

Publications (2)

Publication Number Publication Date
JPS55127532A true JPS55127532A (en) 1980-10-02
JPS6161086B2 JPS6161086B2 (en) 1986-12-24

Family

ID=12438277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3531279A Granted JPS55127532A (en) 1979-03-26 1979-03-26 Single-lens reflex camera having electromagnetic driving source

Country Status (1)

Country Link
JP (1) JPS55127532A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443371A (en) * 1977-09-12 1979-04-05 Nippon Kentetsu Co Ltd Filter
JPS5812572A (en) * 1981-07-16 1983-01-24 Fuji Electric Co Ltd Controlling circuit for chopper

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443371A (en) * 1977-09-12 1979-04-05 Nippon Kentetsu Co Ltd Filter
JPS5812572A (en) * 1981-07-16 1983-01-24 Fuji Electric Co Ltd Controlling circuit for chopper

Also Published As

Publication number Publication date
JPS6161086B2 (en) 1986-12-24

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