PURPOSE: To enable to prevent the lowering in the vacuum in the evaporation chamber with stable evaporation film thickness and to prevent the temperature rise in the chamber for evaporation due to radiation heat, in the evaporation film manufacture of color receiving tube using the resistance heating body as evaporation source.

CONSTITUTION: The problem is caused due to the process of the aluminum molten liquid left on the concave 7a of the boron nitride heater 7 dropping from the evaporation temperature to the non-evaporation temperature and the evaporation while the temperature of the heater 7 of non-evaporation is kept. Accordingly, at the same time when the evaporation is finished, the allocation of the shutter 12 prevents the evaporation of aluminum at other than evaporation and the radiation heat from the evaporation source is shielded.