JPS55161225A - Motor driven mirror device of single-lens reflex camera - Google Patents

Motor driven mirror device of single-lens reflex camera

Info

Publication number
JPS55161225A
JPS55161225A JP6832379A JP6832379A JPS55161225A JP S55161225 A JPS55161225 A JP S55161225A JP 6832379 A JP6832379 A JP 6832379A JP 6832379 A JP6832379 A JP 6832379A JP S55161225 A JPS55161225 A JP S55161225A
Authority
JP
Japan
Prior art keywords
mirror
permanent magnet
motor driven
iron core
motor
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
JP6832379A
Other languages
Japanese (ja)
Inventor
Toshiyuki Kitahara
Yasuo Ishiguro
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 Copal 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 JP6832379A priority Critical patent/JPS55161225A/en
Publication of JPS55161225A publication Critical patent/JPS55161225A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To achieve the reduction of consumption of source battery with simple constitution by attracting and holding the mirror which is kicked up by an motor driven member, by a permanent magnet, by cutting off the electric power supply to the motor driven member.
CONSTITUTION: When a shutter button is pushed down, a mirror 2 is kicked up by the revolution of a motor 10 and is evacuated to outside the taking optical path. When the timing at which the permanent magnet 5 on a plate 4 pushes up an iron core 7 by overcoming the force of a spring 8 is reached, the hole 11b of a belt 11 comes between a lamp 13 and phototransistor 15. Hence, the phototransistor 15 goes ON to stop the motor 10. This causes the mirror 2 to be held in the state that the iron core 7 is attracted to the permanent magnet 5. Upon ending of exposure, the iron core 7 is reverse-energized to erase the attraction force of the permanent magnet 5. Hence the mirror 2 enters the inside of the taking optical path by kicking down and at this same instant, the control circuit assumes the next takable stable. In this way, the consumption of the source battery may be eliminated by the simple constitution.
COPYRIGHT: (C)1980,JPO&Japio
JP6832379A 1979-06-01 1979-06-01 Motor driven mirror device of single-lens reflex camera Pending JPS55161225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6832379A JPS55161225A (en) 1979-06-01 1979-06-01 Motor driven mirror device of single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6832379A JPS55161225A (en) 1979-06-01 1979-06-01 Motor driven mirror device of single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS55161225A true JPS55161225A (en) 1980-12-15

Family

ID=13370495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6832379A Pending JPS55161225A (en) 1979-06-01 1979-06-01 Motor driven mirror device of single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS55161225A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046127A (en) * 1973-08-28 1975-04-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046127A (en) * 1973-08-28 1975-04-24

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