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DRIVE UNIT, A LENDS MODULE, AND A PHOTOGRAPHING APPARATUS CAPABLE OF IMPROVING PROPERTIES UNDER LOW-TEMPERATURE ENVIRONMENT BY IMPROVING A WORKING SPEED OF AN ELEMENT WITHOUT A SPECIAL HEAT SOURCE UNDER LOW-TEMPERATURE ENVIRONMENT
DRIVE UNIT, A LENDS MODULE, AND A PHOTOGRAPHING APPARATUS CAPABLE OF IMPROVING PROPERTIES UNDER LOW-TEMPERATURE ENVIRONMENT BY IMPROVING A WORKING SPEED OF AN ELEMENT WITHOUT A SPECIAL HEAT SOURCE UNDER LOW-TEMPERATURE ENVIRONMENT
PURPOSE: A drive unit, lends module, and a photographing apparatus are provided to rise a temperature of an element by self heating of a polymer actuator element because the heating voltage is additionally applied to the polymer actuator element with the driving voltage.;CONSTITUTION: A drive unit comprises one or a plurality of a polymer actuator elements(441,442) and a voltage supply unit(451). The voltage supply unit supplies the driving voltage and heating voltage to the polymer actuator elements.;COPYRIGHT KIPO 2012
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