Self-cleaning apparatus for removal of foreign substances from a plate-like device

A self-cleaning apparatus for removing foreign substances from a surface comprising:

• a substantially planar member;
• vibrating means for vibrating the planar member;
• vibration controlling means for driving the vibrating means at a predetermined frequency, the vibrating means being expanded and contracted in a radial direction so as to expand and contract the planar member;
• housing means for integrally housing the planar member, the vibrating means and the vibration controlling means;
• a circuit board including power transmitting means for transmitting power to the vibrating means;
• and
• metallic case means for enclosing the circuit board.

A self-cleaning apparatus for removing foreign substances from a surface comprising:

• a substantially planar member;
• vibrating means expanding and contracting in a radial direction for vibrating the planar member so as to bend the planar member;
• vibration controlling means for driving the vibrating means at a predetermined frequency;
• housing means for integrally housing the planar member, the vibrating means and the vibration controlling means;
• power controlling means including a timer circuit for supplying electric power to the vibration controlling means, wherein the power controlling means is separately disposed exteriorly of the housing means;
• a circuit board including power transmitting means for transmitting power to the vibrating means;
• and
• metallic case means for enclosing the circuit board.