US Patent 7911529 Digital camera and personal digital assistant with the same

A digital camera includes at least one shutter blade in which opening and closing operations of an exposure aperture are performed using an electromagnetic actuator. The digital camera also includes an image sensor converting light from an object into image information, and an image processing circuit which stores the image information converted by the image sensor in an image memory so that the image information can be fetched and such that the image processing circuit has terminals for connecting the image processing circuit to an estimation display device. Further, the digital camera includes an exposure control circuit including a reference table controlling the amount of light exposure and at least one correction table allowing the amount of light exposure controlled by the reference table to be corrected, and includes a driving circuit driving the electromagnetic actuator according to an output signal of the exposure control circuit.