Patent ID: 8218059

Claim:
A digital camera comprising: an image pickup device for converting an image formed based on a subject light into electronic image data; a dust-proof member including a light-transmitting portion through which the subject light passes, the light-transmitting portion being disposed so as to face an image pickup surface of the image pickup device with a predetermined distance; a vibration member for vibration application arranged at a position which is other than a position where the light-transmitting portion of the dust-proof member is arranged, the vibration member for vibration application vibrating not only a surface of the dust-proof member but also inside of the dust-proof member; and a vibration member for vibration absorption arranged at a position which is other than the position where the light-transmitting portion of the dust-proof member is arranged and which is opposed to the vibration member for vibration application, the vibration member for vibration absorption absorbing a part of vibration of the dust-proof member in a predetermined cycle, wherein when a wavelength of vibration generated in the dust-proof member by vibration of the vibration member for vibration application is defined as λ, and an odd number as k, the vibration member for vibration application and the vibration member for vibration absorption are arranged separately from each other at positions on the dust-proof member such that a distance between centers of the members is expressed by k×λ/4.