APPARATUS FOR ELIMINATING DUST IN PROJECTION ELECTRONIC SCREEN

摘要

Disclosed is a dust removal apparatus of a projection copyboard for preventing the adhesion of foreign matter such as dust to a reflection mirror. The apparatus for removing dust from the copyboard may include a projector for projecting an image therein, a reflecting mirror for reflecting an image irradiated from the projector, and a screen for displaying an image reflected through the reflecting mirror. A blower device is provided adjacent to an upper side of the reflective mirror of the projection copyboard, and the blower device comprises: a case; A blower installed at one inner side of the case; An air filter installed in the case along the transverse direction; And a plurality of airflow variable members installed in a case of the blower facing the air filter to change the flow of air.