Actuator
A driver and driven technology, used in instruments, generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve the problem of unstable friction between driven parts and driving friction parts Driven parts move, it is difficult to obtain the thrust of the driven parts, etc., to achieve stable drive control and ensure the effect of thrust
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[0024] Hereinafter, the best embodiment of the actuator according to the present invention will be described in detail with reference to the drawings.
[0025] figure 1 It is a perspective view showing a lens device 10 to which an actuator according to the present invention is applied, figure 2 , image 3 It is a perspective view showing its internal structure.
[0026] Such as figure 1 As shown, the lens device 10 has a main body 12 formed in a substantially rectangular shape, and the inside of the main body 12 is equipped with figure 2 , image 3 Zoom lens (sets) 14, 16 are shown. One of the zoom lenses (groups) 14 and 16 is a zoom lens, and the other is a correction lens. Furthermore, the zoom lenses (groups) 14 and 16 are held by holding frames 18 and 20, respectively. The holding frames 18 and 20 are slidably supported in the direction of the optical axis P by two guide shafts 22 and 24 . The two guide shafts 22 and 24 are arranged at diagonal positions inside t...
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