US 2012/0069238 A1 · IMAGE CAPTURING DEVICE

Abstract

A rotation body having an optical member is stored in an optical capsule that is filled with a liquid that is an anti-freeze solution. A magnetic rotation driver rotates the rotation body by applying a magnetic force in a rotation direction to a first magnetizer provided to the rotation body, and heats the liquid. Specifically, the stator core that configures the magnetic rotation driver is formed so that a surface opposing the first magnetizer fits along a curved surface of an outer surface of the optical capsule. The opposing surface is applied with a silicon grease and then firmly attached to the optical capsule. Thus, the entire opposing surface of the stator core acts as a thermal conduction path to more efficiently heat the liquid, thereby making it possible to stably rotate the rotation body even in a cold environment.

Claims24

Dependent claims

An image capturing device comprising:

an image capturing element that performs photoelectric conversion on light from an object and outputs a pixel signal;
a lens unit that forms an image on the image capturing element based on light from the object;
a capsule member in which a liquid is contained;
a rotation body that is received in the capsule member and is inclined at a predetermined angle with respect to an optical axis of the lens unit;
and
a rotational driving device that displaces an optical image formed on a light-receiving surface of the image capturing element and the image capturing element relative to each other by rotating the rotation body about the optical axis of the lens unit, and
wherein a heater is provided to the capsule member to heat the liquid.

4 more elements

Dependencies are inferred from the claim text.

Image capturing device

Life of this patent

Image capturing device

Life of this patent

Abstract

Claims24