| 摘要 |
PURPOSE:To remove assembling errors or fluctuation or the like in the characteristics of a bimorph and to attain accurate driving by providing the titled device with a means for rotatably holding the bimorph by a shaft vertical to the face in parallel with the bending direction of the bimorph and finely adjusting the direction of the bimorph centering around the shaft. CONSTITUTION:A bimorph holder 25 is freely rotatably held on a shutter board 6 through a shaft 6f and engaged with an eccentric pin 31. When the pin 31 is rotated, a fitting part 25b is rotated around the shaft 6f and the tip part of the bimorph 14 is moved in the operating direction of the tip of the bimorph, i.e. to a replaced position based upon voltage impression. When the positional adjustment is executed, positional relation between the tip replacing range of the bimorph and the receiving part of a driven mechanism is adjusted, shutter blades 2, 4 are adjusted so as to be set up to prescribed initial positions and the bimorph 14 is adjusted so as to drive the shutter blades 2, 4 most efficiently. Thus, the driving accuracy of the bimorph can be stabilized.
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