| 摘要 |
The present invention provides a shutter apparatus and a drive method for the same, the shutter apparatus having functions of both a shutter apparatus for an image interception and a shutter apparatus for an aperture adjustment and being space-saving and low in costs. Within an illumination casing are provided first and second shading plates 212 and 215, first and second cammed gear 224 and 227 having a cam groove 225 and 228 respectively for driving the first shading plate 212 and the second shading plate 215 respectively. A cam shape is structured such that the rotation of a DC motor 235 (one drive source) enables the first and second shading plates 212 and 215 to drive independently. Thus, arbitrarily operating the functions of both the shutter apparatus for the image interception and the shutter apparatus for the aperture adjustment by the DC motor 235 (one shared drive source) is possible. |
