Image taking device
View Patent ↗A first holder is disposed to move in a direction of a first optical axis of a refractive optical system in which object light incident from a front thereof along the first optical axis is reflected by a prism in a direction along a second optical axis extending vertically to form an image on a CCD solid-state image-pickup element.
1. An image taking device including a refractive optical system by which object light incident from a front thereof along a first optical axis is reflected in a direction along a second optical axis extending vertically to form an image on an image-pickup element, the image taking device generating an image signal by capturing the object light forming the image on the image-pickup element, the image taking device comprising:
a camera shake detecting unit that detects camera shake;
a camera shake correcting lens that corrects camera shake, the camera shake correcting lens being incorporated in the refractive optical system;
a first holder that holds the camera shake correcting lens, the first holder being free to move in a horizontal plane in a first direction parallel to the first optical axis;
a second holder that holds the first holder, the second holder being free to move in the horizontal plane in a second direction perpendicular to the first optical axis; and
a driving unit that drives the camera shake correcting lens held by the first holder and the first holder held by the second holder depending on a result of detection by the camera shake detecting unit, and that moves the camera shake correcting lens and the first holder respectively in the first and second directions in order to correct the camera shake.
2. The image taking device according to claim 1 , wherein the driving unit comprises:
a first electromagnetic coil provided to the first holder;
a first yoke that generates any one of attraction and repulsion by a current being passed through the first electromagnetic coil provided integrally with the camera shake correcting lens;
a second electromagnetic coil provided to the second holder; and
a second yoke that generates any one of attraction to, and repulsion from, the second electromagnetic coil by a current being passed through the second electromagnetic coil provided to the second holder.
3. An image taking device including a refractive optical system by which object light incident from a front thereof along a first optical axis is reflected in a direction along a second optical axis extending vertically to form an image on an image-pickup element, the image taking device generating an image signal by capturing the object light forming the image on the image-pickup element, the image taking device comprising:
a camera shake detecting unit that detects camera shake;
a first holder that holds the image-pickup element, the first holder being free to move in a horizontal plane in a first direction parallel to the first optical axis;
a second holder that holds the first holder, the second holder being free to move in the horizontal plane in a second direction perpendicular to the first optical axis; and
a driving unit that drives the image-pickup element held by the first holder and the first holder held by the second holder depending on a result of detection by the camera shake detecting unit, and that moves the image-pickup element and the first holder respectively in the first and second directions in order to correct the camera shake.
4. The image taking device according to claim 3 , wherein the driving unit comprises:
a first electromagnetic coil provided to the first holder;
a first yoke that generates any one of attraction and repulsion by a current being passed through the first electromagnetic coil provided integrally with the image-pickup element;
a second electromagnetic coil provided to the second holder; and
a second yoke that generates any one of attraction to, and repulsion from, the second electromagnetic coil by a current being passed through the second electromagnetic coil provided to the second holder.