| 摘要 |
PURPOSE:To eliminate the mechanical linkage with a shutter mechanism and to simplify a constitution by locking and unlocking a mirror-up operating member and a mirror-down operating member by a single attraction type electromagnet. CONSTITUTION:The mirror-up operating member 11 is locked by a mirror lock lever 20 and the mirror-down operating member 7 is locked by a quick-return lock lever 16 in a charged state. When the shutter is released in this state, the attraction type electromagnet 30 is powered on to attract an iron piece 25, and the mirror-up operating member 11 is unlocked to hop up a mirror 5 and also electric conduction is turned off. When the shutter operates in the mirror-up state, the electromagnet 30 is conducted again to attract the iron piece 25, and then the quick-return lock lever 16 is unlocked to lower the mirror 5. Consequently, the mechanical linkage with the shutter is eliminated to simplify the mechanism. |
