JPS5589820A - Malfunction preventing circuit of camera - Google Patents

Malfunction preventing circuit of camera

Info

Publication number
JPS5589820A
JPS5589820A JP16116178A JP16116178A JPS5589820A JP S5589820 A JPS5589820 A JP S5589820A JP 16116178 A JP16116178 A JP 16116178A JP 16116178 A JP16116178 A JP 16116178A JP S5589820 A JPS5589820 A JP S5589820A
Authority
JP
Japan
Prior art keywords
circuit
power supply
power source
electromagnetic release
pulse
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
JP16116178A
Other languages
Japanese (ja)
Inventor
Akita Namioka
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.)
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP16116178A priority Critical patent/JPS5589820A/en
Publication of JPS5589820A publication Critical patent/JPS5589820A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stroboscope Apparatuses (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Automatic Focus Adjustment (AREA)
  • Exposure Control For Cameras (AREA)
  • Focusing (AREA)

Abstract

PURPOSE: To stabilize the power supply to exposure control circuit by cutting off the power supply to the strong discharge load which is driven by the same power source by the leading edge of the electromagnetic release signal.
CONSTITUTION: Along with release operation, a power source switch 2 is closed and an electromagnetic release pulse is generated from a pulse signal generating circuit 4 after lapse of the specified time by way of a release signal generating circuit 3. This pulses causes an exposure control circuit 6 to be operated by an electromagnetic release circuit 5. On the other hand, according to the leading edge of this electromagnetic release pulse, a latch circuit 9 and power source cutoff circuit 8 cut off the power supply for a strong discharge load circuit 7 such as for strobe using the same power source. Hence, the terminal voltage of a source battery 1 does not drop without being affected by the circuit 7 and therefore the stable power supply to the circuit 6 is accomplished and the exposure controlled without any malfunction.
COPYRIGHT: (C)1980,JPO&Japio
JP16116178A 1978-12-28 1978-12-28 Malfunction preventing circuit of camera Pending JPS5589820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16116178A JPS5589820A (en) 1978-12-28 1978-12-28 Malfunction preventing circuit of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16116178A JPS5589820A (en) 1978-12-28 1978-12-28 Malfunction preventing circuit of camera

Publications (1)

Publication Number Publication Date
JPS5589820A true JPS5589820A (en) 1980-07-07

Family

ID=15729746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16116178A Pending JPS5589820A (en) 1978-12-28 1978-12-28 Malfunction preventing circuit of camera

Country Status (1)

Country Link
JP (1) JPS5589820A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038532A (en) * 1973-06-28 1975-04-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038532A (en) * 1973-06-28 1975-04-10

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