| 摘要 |
<p>A filter to be secured to a cathode ray tube of a display device of an office automation equipment such as a computer or a word processor, wherein an electrically conductive filament is stretchedly provided on a frame. The conductive filament includes a monofilament made of a synthetic resin material, a metallic film coated on this monofilament and a black or gray paint coated on this metallic film. The frame has a shape conforming to the cathode ray tube so as to be detachably secured to the cathode ray tube.</p> |
