In a camera module, a lens for forming an image on an imaging element having a rectangular light receiving surface is formed in a shape obtained by removing a peripheral portion of a circular lens, such as a generally oval shape, and a cylindrical lens barrel coaxially holding the lens is formed in a shape conforming to that of the lens. For example, the method, apparatus and article generates a pseudo-random playing card sequence and prints playing cards in order of the pseudo-random playing card sequence. The core of the optical probe is coated with a light shielding coating layer 33. This action may obstensibly soothe one’s psyche of excess anger or frustration toward that person or object. When the coil spring has been wound to a pre-determined torque, the spring is released to drive an input to an electrical generator.