Camera module that drives image sensor
Disclosed is a camera module including an imaging lens supported in such a manner as to be displaceable in a first direction, an image sensor supported in such a manner as to be displaceable in a second direction different from the first direction, a first actuator that carries out positioning of the imaging lens in the first direction, and a second actuator that carries out positioning of the image sensor in the second direction. Autofocus operation is carried out by one of the first actuator, and the second actuator and optical image stabilization operation is carried out by the other of the first actuator and the second actuator.
1. A camera module, comprising:
a plurality of imaging lenses, wherein
each imaging lens of the plurality of imaging lenses is supported in such a manner as to be displaceable in a first direction, and
the plurality of imaging lenses moves in unison;
an image sensor supported in such a manner as to be displaceable in a second direction different from the first direction;
a first actuator including a first electromagnetic drive section configured to position each imaging lens of the plurality of imaging lenses in the first direction; and
a second actuator including a second electromagnetic drive section configured to position the image sensor in the second direction, wherein
the first electromagnetic drive section configured to position each imaging lens of the plurality of imaging lenses shares a magnet with the second electromagnetic drive section configured to position the image sensor,
an autofocus operation is carried out by one of the first actuator and the second actuator, and
an optical image stabilization operation is carried out by another of the first actuator and the second actuator.
2. The camera module according to claim 1 , wherein
the first direction is a direction perpendicular to an optical axis of the plurality of imaging lenses, and
the second direction is an optical axis direction of the plurality of imaging lenses.
3. The camera module according to claim 1 , wherein
the first direction is an optical axis direction of the plurality of imaging lenses, and
the second direction is a direction perpendicular to an optical axis of the plurality of imaging lenses.
4. The camera module according to claim 1 , wherein at least one of the first actuator and the second actuator supports a movable part by an elastic body.
5. The camera module according to claim 4 , wherein both the first actuator and the second actuator support the movable part by the elastic body.
6. The camera module according to claim 1 , wherein the one of the first actuator and the second actuator that carries out the optical image stabilization operation includes a position detecting section configured to detect displacement of a movable part.
7. A camera module capable of carrying out at least one of an autofocus operation or an image stabilization operation by driving an image sensor, the camera module comprising:
a bonding wire, wherein
a first end of the bonding wire is electrically connected to the image sensor disposed in a movable part and a second end of the bonding wire is electrically connected to a module substrate disposed in a fixed part,
the bonding wire electrically connects the image sensor and the module substrate to energize the image sensor,
the bonding wire has a curved shape, and
the bonding wire is an energizing section for a device that is disposed in the movable part and is for driving.
8. The camera module according to claim 7 , wherein vicinity of a connecting part between the image sensor and the bonding wire and vicinity of a connecting part between the module substrate and the bonding wire that are one part of the bonding wire are protected by a resin material.
9. The camera module according to claim 8 , further comprising:
a sensor cover that covers a light receiving part of the image sensor, wherein
the light receiving part is disposed in the sensor cover, and
the connecting part between the image sensor and the bonding wire and the connecting part between the module substrate and the bonding wire are disposed outside the sensor cover.
10. The camera module according to claim 7 , wherein the image sensor is driven in a plurality of directions for purposes of both the autofocus operation and the image stabilization operation.
11. The camera module according to claim 7 , wherein the first end of the bonding wire is directly connected to the image sensor disposed in the movable part and the second end of the bonding wire is directly connected to the module substrate disposed in the fixed part.
12. The camera module according to claim 1 , further comprising:
a module substrate; and
a movable part supported in such a manner as to be displaceable in the second direction different from the first direction, wherein
the image sensor is on the module substrate,
the movable part includes:
the image sensor,
a sensor cover that covers the image sensor, and
an infrared radiation cut glass on the image sensor, and
the second actuator is further configured to position the movable part in the second direction.