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发明公开
CN102236235A 振动装置及使用该振动装置的图像设备 有权 转让

振动装置及使用该振动装置的图像设备
摘要：
振动装置及使用该振动装置的图像设备。防尘过滤器总体上形成为板状，具有至少一条相对于该板状的部件表面上的假想轴对称的边。压电元件与形成在防尘过滤器上的一条边邻接，并且沿着该一条边配置在防尘过滤器的部件表面上。Bucom和防尘过滤器控制电路驱动压电元件，使得防尘过滤器的部件表面产生如下的振动：在该部件表面上，具有垂直于该部件表面的振动振幅的振动的波峰的峰线成为闭合曲线，成为包含该闭合曲线的中心的中心振动区域的重心被围在基本上不具有垂直于该部件表面的振动振幅的波节区域中。在设防尘部件的假想矩形的与施振部件的假想矩形的长边方向对应的边的长度为LF，设施振部件的假想矩形的长边长度为LPFF时，LPFF/LF为0.688以上且0.710以下。
摘要（英）：

The invention provides a vibrating device and a piece of image equipment having the same. A dust-screening member is shaped like a plate as a whole. A vibrating member is adjacent to one side of the dust-screening member, arranged on the surface along the one side, and configured to produce, at the surface, vibration having a vibrational amplitude perpendicular to the surface. A drive unit is configured to drive the vibrating member to produce the vibration on the surface, such that peak ridges of the vibration 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. When a length of a side in a dust-screening member virtual rectangle corresponding to a long side of a vibrating member virtual rectangle is assumed to be LF, and a length of a long side in the vibrating member virtual rectangle is assumed to be LPFF, LPFF/LF has a dimension 0.688 or greater and 0.710 or less.

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