JPS55161225A - Motor driven mirror device of single-lens reflex camera - Google Patents
Motor driven mirror device of single-lens reflex cameraInfo
- 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
Links
Landscapes
- Cameras In General (AREA)
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046127A (en) * | 1973-08-28 | 1975-04-24 |
-
1979
- 1979-06-01 JP JP6832379A patent/JPS55161225A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046127A (en) * | 1973-08-28 | 1975-04-24 |
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