A first rotating board is supported on a fixed member, being rotatable around a first pivot shaft. The defroster can be fabricated by forming a masking layer with a certain shape on an electrically resistant substrate; patterning a thin film heater on the substrate based on the shape of the masking layer; adhering the film heater to a heat transfer plate; and connecting a power supply to the film heater. The drive rod is linked to the pressing device via at least one elastic low-mass coupling element and the pressing device can be placed by the linear motor back and forth between a raised and a lowered position.