| 摘要 |
Provided is an optical module that is thin, allows freedom of design in configuration, and assures the accuracy of movement of an optical part while suppressing power loss. A stepping motor 26 and a lens barrel 27 that is moved by moving means 28 are positioned offset from each other along a base plate 23 , and the optical axis of the lens barrel 27 and the axis of a rotor 37 provided in the stepping motor 26 are arranged in parallel with each other on one surface of the base plate 23 . Further, a reduction gear train 29 , which operatively couples the rotor 37 and the moving means 28 together, is arranged on the one surface. The stepping motor 26 consists of a flat-shaped motor equipped with: coil blocks 35 each having an excitation coil 39 horizontally mounted along the base plate 23 ; a yoke 36 whose magnetic path portion 36 a excluding end portions 36 b and 36 c connected with the coil blocks 35 is provided so as not to overlap the coil blocks 35 ; and the rotor 37 arranged within a rotor pass-through hole 40 of the yoke 36.
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