Lens driving device, camera device, electronic apparatus, and manufacturing method for lens driving device

A camera device comprising:

• a lens driving device;
• a lens held by the lens holder;
• and
• an image sensor being provided about the optical axis of the lens;
• wherein
• the lens driving device includes:
• a lens holder for supporting the lens;
• a coil mounted on the lens holder;
• at least one magnet disposed around the coil;
• a first spring member and a second spring member which support the lens holder at the both sides of the lens holder in the optical axis direction of the lens so that the lens holder moves freely in the both directions of the optical axis of the lens in an initial state in which no electric current flows through the coil;
• and
• an abutment surface to which the lens holder abuts when the lens holder moves toward one of the first spring member and the second spring member against a biasing force of the one of the first spring member and the second spring member;
• wherein
• the lens holder is exhorted a biasing force by the other one of the first spring member and the second spring member from the side of the other one of the first spring member and the second spring member to the side of the one of the first spring member and the second spring member in the optical axis direction when the lens holder abuts against the abutment surface.

An electronic apparatus being equipped with the camera device, the camera device including:

• a lens driving device;
• a lens held by the lens holder;
• and
• an image sensor being provided about the optical axis of the lens;
• wherein
• the lens driving device further includes:
• a lens holder for supporting the lens;
• a coil mounted on the lens holder;
• at least one magnet disposed around the coil;
• a first spring member and a second spring member which support the lens holder at the both sides of the lens holder in the optical axis direction of the lens so that the lens holder moves freely in the optical axis direction of the lens in an initial state in which no electric current flows through the coil;
• and
• an abutment surface to which the lens holder abuts when the lens holder moves toward one of the first spring member and the second spring member against a biasing force of the one of the first spring member and the second spring member;
• wherein
• the lens holder is exhorted a biasing force by the other one of the first spring member and the second spring member from the side of the other one of the first spring member and the second spring member to the side of the one of the first spring member and the second spring member in the optical axis direction when the lens holder abuts against the abutment surface.

A method for manufacturing a lens driving device, the method comprising:

• fixing a first spring member which supports a lens holder, which holds a lens, at one side of the lens holder in the optical axis direction of the lens;
• making the lens holder abut to an abutment surface against a biasing force of the first spring member;
• and
• in the state in which the lens holder abuts to the abutment surface against the biasing force of the first spring member, fixing a second spring member, which supports the lens holder at the other side of the lens holder in the optical axis direction of the lens, to the lens holder with the second spring member being exhorted a biasing force from the other side of the lens holder.