JPS55564A - Shutter device of camera - Google Patents

Shutter device of camera

Info

Publication number
JPS55564A
JPS55564A JP3082379A JP3082379A JPS55564A JP S55564 A JPS55564 A JP S55564A JP 3082379 A JP3082379 A JP 3082379A JP 3082379 A JP3082379 A JP 3082379A JP S55564 A JPS55564 A JP S55564A
Authority
JP
Japan
Prior art keywords
shutter
frequency divider
controller
specified
electromagnet
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
JP3082379A
Other languages
Japanese (ja)
Inventor
Shoji Komamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP3082379A priority Critical patent/JPS55564A/en
Publication of JPS55564A publication Critical patent/JPS55564A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To correctly define the exposure time of shutter by making use of electric pulse trains without using any mechanical shutter mechanism.
CONSTITUTION: When the tap corresponding to the specified exposure time is selected out of the respective taps of a frequency divider B and is set and when the release signal 2 of the command from the outside is next applied to a controller C, then the controller C is set and the electromagnet of the shutter is operated from output terminal 4 to open the shutter. At the same time, the oscillation of an oscillator A is started by a circuit 3 and this oscillation output enters the frequency divider B. After the frequency divider B ends counting of the specified counts since it started counting, its count output is sent to the controller C, by which a flip-flop is reset to return the electromagnet of the shutter from the output terminal 4, by which the exposure of the specified time is ended and at the same time the stoppage of the oscillator and clearing of the arithmetic circuit of the frequency divider are accomplished.
COPYRIGHT: (C)1980,JPO&Japio
JP3082379A 1979-03-16 1979-03-16 Shutter device of camera Pending JPS55564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3082379A JPS55564A (en) 1979-03-16 1979-03-16 Shutter device of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3082379A JPS55564A (en) 1979-03-16 1979-03-16 Shutter device of camera

Publications (1)

Publication Number Publication Date
JPS55564A true JPS55564A (en) 1980-01-05

Family

ID=12314415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3082379A Pending JPS55564A (en) 1979-03-16 1979-03-16 Shutter device of camera

Country Status (1)

Country Link
JP (1) JPS55564A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5793611A (en) * 1980-12-02 1982-06-10 Hitachi Ltd Turbine starting controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5793611A (en) * 1980-12-02 1982-06-10 Hitachi Ltd Turbine starting controller

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