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CN102933012A 光源装置、放电灯的驱动方法以及投影机 失效 - 权利终止

光源装置、放电灯的驱动方法以及投影机
Abstract:
提供一种能够抑制放电灯的黑化、同时抑制电极间距离扩大并驱动放电灯的光源装置、放电灯的驱动方法以及投影机。光源装置（1）具备：具有在被封入了放电介质的空洞部内相对配置的作为第1电极的电极（610）和作为第2电极的电极（710）的放电灯；以及向电极（610）和电极（710）提供驱动电压的放电灯驱动装置（200）；通过经由电极（610）和电极（710）向放电介质施加驱动电压，放电介质发光；放电灯驱动装置（200）使电极（610）相对电极（710）的相对电位在多个频率下变化，多个频率包含第1频率和第2频率，第1频率比1kHz大，第2频率是1kHz或者比1kHz小。
Abstract(English):

A light source device including a discharge lamp that has a first electrode and a second electrode opposed to each other in a hollow portion in which a discharge medium is enclosed; and a driving device that supplies a driving voltage to the first electrode and the second electrode, wherein the driving voltage is applied to the discharge medium through the first electrode and the second electrode such that the discharge medium emits light, wherein the driving device changes a relative potential of the first electrode with respect to the second electrode at a plurality of frequencies.

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