Patent ID: 8605194
Filing Date: 2013-12-10
Classification: G02B,H04N

Abstract:
1. A vibrating device comprising: a dust-screening member which is shaped like a plate as a whole, and which has at least one side that is symmetric with respect to a virtual axis on a surface of the dust-screening member; a vibrating member which is adjacent to one side of the dust-screening member and is arranged on the surface along said one side of the dust-screening member, and which is configured to produce, at the surface, vibration having a vibrational amplitude perpendicular to the surface of the dust-screening member; and a drive unit configured to drive the vibrating member to produce the vibration, such that peak ridges of the vibration having the vibrational amplitude perpendicular to the surface of the dust-screening member form a closed loop, and an area including a center of the closed loop is surrounded by a node area having almost no vibrational amplitude perpendicular to the surface of the dust-screening member, on the surface of the dust-screening member.