| http://www.w3.org/ns/prov#value | - Accordingly, a user (a viewer) of the image display device 1 can change over the clock table 210 by himself or herself when the quality of the image displayed by the image display device 1 is deteriorated whereby, for example, even when the oscillation state such as the oscillation range and the oscillation frequency of the resonance-type deflection element 71 is changed due to causes other than t
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