| 摘要 |
<p>A light filter for dental use having: a transparent planar member (20) coloured so as to filter-out visible radiation in the range of 400 nm to 520 nm, the range being that to which dental light-cured materials are sensitive; a base (22) of a magnetic material attached to the underside of the planar member (20); and an attachment device (36) having a shell (34) of a magnetic material containing a permanent magnet (30), the attachment device (36) being attached to the lens (16).</p> |
