| 摘要 |
<p>Collapsible light-shielding device (3) for a displaying screen (2), having a number of annular strips (5', 5) concentrically nested and essentially enclosing one another in a tight manner, which strips are suitable to be fixed in front of a displaying screen and in that case surround the screen, said strips furthermore being suitable to slide over one another between a pushed-in position, in which they essentially cover one another, and a pushed-out position, in which they are essentially uncovered. Preferably, the strips (5, 5') have a decreasing wall thickness, viewed in the axial direction. <IMAGE></p> |
