| 摘要 |
<p>PURPOSE:To efficiently absorb electromagnetic waves dispersing them around uniformly by a method wherein an electromagnetic wave absorbing pattern of conductive material patterned on a honeycomb shape or the like is formed on a transparent or a semitransparent base film, and a protective film is laminated on the electromagnetic absorbing pattern by pasting. CONSTITUTION:An electromagnetic wave absorbing pattern is printed on the surface of a transparent base film 1 with a gravure printer, and a transparent protective film 3 is pasted thereon. An electromagnetic wave absorbing pattern which is patterned on a honeycomb shape is best, and the absorbing pattern is effective when each compartment of the honeycomb is set to 15m/m or below in width across corners, diameter, and length between the opposed sides respectively and formed of conductive material such as aluminum, nickel, silver, copper, or the like. When electromagnetic waves hit the shielding body concerned, they are absorbed by the electromagnetic wave absorbing pattern, diffused around radially, and then disappear, and as the electromagnetic wave absorbing pattern is composed of small honeycomb compartments, it prevents electromagnetic waves from penetrating through it and especially effective against electromagnetic waves of a frequency range of 30-1000MHz.</p> |
