Figure 2
Schematic diagram illustrating the operation of the in-air fast shutter. In the deactivated state (a), the beam is centred on the first blade but passes over the top of the second blade. To open the shutter, the first blade is activated (b) to allow the beam to pass. At the end of an exposure (c), the second blade is fired to block the beam. Finally, the two blades are deactivated simultaneously (d), blocking the beam at all times. |