Optical element driving device, camera device and electronic apparatus
An optical element supporting device is provided that includes a fixed-side member, a first driving shaft, an intermediate member, a second driving shaft, a movable member and a driving mechanism. The first driving shaft extends in a first axis direction and is supported by the fixed-side member and the intermediate member is supported by the first driving shaft and rotates around the first axis with respect to the fixed-side member. The second driving shaft extends in a second axis direction orthogonal to the first axis direction and is supported by the intermediate member. The movable member is supported by the second driving shaft to rotate around the second axis with respect to the intermediate member and has a placing portion for placing an optical element. The driving mechanism applies a rotation force to the optical element that is placed on the movable member.
1. An optical element driving device comprising:
in a rectangular coordinate system having a first axis, a second axis and a third axis that are orthogonal to each other,
a fixed-side member;
a first driving shaft which extends in the first axis direction and is supported by the fixed-side member;
an intermediate member which is supported by the first driving shaft and rotates around the first axis with respect to the fixed-side member;
a second driving shaft which extends in the second axis direction and is supported by the intermediate member;
a movable member which is supported by the second driving shaft, rotates around the second axis with respect to the intermediate member, and has a placing portion for placing an optical element; and
a driving mechanism applying a rotation force to the optical element that is placed on the movable member,
wherein a portion of the driving mechanism is attached to the movable member on a side opposite to the placing portion with the first driving shaft and the second driving shaft sandwiched therebetween in the third axis direction.
2. The optical element driving device according to claim 1 , wherein the driving mechanism comprises a magnet and a coil, the magnet is attached to the movable member, and the coil faces the magnet and is attached to the fixed-side member.
3. The optical element driving device according to claim 2 , wherein the driving mechanism further comprises two sets of magnets and coils, the two sets of magnets are attached to the movable member at positions where one of the first driving shaft and the second driving shaft is sandwiched therebetween, and the two sets of coils face each set of magnets and are attached to the fixed-side member.
4. The optical element driving device according to claim 1 , wherein the first driving shaft and the second driving shaft intersect each other in a cross shape at an interval in the third axis direction between the placing portion and a portion of the driving mechanism.
5. A camera device comprising the optical element driving device according to claim 1 .
6. An electronic apparatus comprising the camera device according to claim 5 .