DUST COLLECTION FILTER UNIT, PROJECTION TYPE IMAGE DISPLAY DEVICE, AND AIR CLEANER

摘要

PROBLEM TO BE SOLVED: To hold a shape with a structure for easily installing-removing a pleat (zigzag-folding)- shaped electrostatic filter for maintaining high dust collection performance over a long time.;SOLUTION: A regenerable electrostatic filter composed of at least two kinds of synthetic fibers and having high dust collection performance, is used in a pleat shape in a shape of satisfying a desired relationship. A support structure is composed of adhesive means for closely fixing a zigzag end surface side of a dust collection filter, a first filter support material for supporting an apex position with every one pitch in a parallel direction to a ridgeline of the pleat filter and similarly a second filter support material, and the pleat filter is sandwiched by the first filter support material and the second filter support material from front and rear.;COPYRIGHT: (C)2014,JPO&INPIT