Camera module, electronic device employing camera module, and method for controlling same

Disclosed are a camera module, an electronic device having the camera module, and a method for controlling the electronic device. The camera module includes an image sensor shooting an image, a body tube disposed above the image sensor, including a lens group and a housing including an opening formed at an upper end of the lens group and transmitting a light exiting through the opening and the lens group to the image sensor, a cover window positioned at an upper end of the opening of the body tube and including a transparent material, a transparent substrate positioned at a lower end of the cover window, and an opaque conductive material disposed in a space defined by coupling the cover window to the transparent substrate. An electrode device is formed on the transparent substrate to generate an electric field or a magnetic field when receiving a power, and when the electric field or the magnetic field is generated, the conductive material reacts with the electric field or the magnetic field in the space and moves toward a center of the transparent substrate to cover the opening of the body tube.