| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform accurate position detection by reducing a position detection error of a lens position detecting element. <P>SOLUTION: An optical device includes: position detecting means including a first magnetic detection element 13g1 and a second magnetic detection element 13g2 provided on an optical member; and a scale member 13e fixed to a fixing member. The first magnetic detection element is disposed on the first surface side of the scale member, and the second magnetic detection element is disposed on the second surface side opposite to the first surface side of the scale member, and the scale member has an inclined portion inclined relative to a movement direction of the optical member. The first magnetic detection element and the second magnetic detection element are disposed so as to overlap with the inclined portion in a direction orthogonal to the first surface or the second surface, in at least a part of a movement range of the optical member, and the position detection means detects displacement in the movement direction of the optical member on the basis of outputs of the first magnetic detection element and the second magnetic detection element. <P>COPYRIGHT: (C)2013,JPO&INPIT |
