| 摘要 |
PURPOSE:To constitute a mechanical shutter device by adding an electronic shutter mechanism which steplessly controls a shutter time by simple constitution as for the mechanical shutter device which controls the shutter time according to the rotating time of a rotary cam body. CONSTITUTION:An electronic shutter circuit which moves a mode to an action mode to an electronic shutter is provided. Besides, first bistable actuators 34 and 35 which are provided with an electronic trigger lever 32, which is locked and released according to the release of the shutter and which starts the rotary cam body 10, and which control a pulse voltage by the electronic shutter circuit and displace the lever 32 to a locking position and a lock releasing position are provided. Moreover, second bistable actuators 44 and 45 which are provided with an electronic time control lever 43, which advances the cam body 10 to a can turning area and delays the rotation of the cam body 10 after the shutter is opened, and which control the pulse voltage by the electronic shutter circuit and displace the lever 43 to an advance position and a retreat position are provided. |
