| 摘要 |
An automatically removable filter is positioned in front of a cathode ray screen, when illuminated, and is comprised by a sheet of textile material woven with micromeshes. An automatic roller is secured to the television set, and the filter is guided and held and secured by its end or by its side. The automatic roller containing the filter is fixed to the television set by its upper or lower part or sides, so that the filter, once it is unrolled, is positioned very closely in front of the screen.
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