| 摘要 |
<p>A composite protective sheet material (12) for covering a smooth surface of a transparent material. It is especially but not exclusively for covering the surface of a lens. It comprises a film substrate (14) and an adhesive coating (16) which covers at least one main surface of the film substrate (14). At least a part (24) of the said at least one main surface of the substrate (14) is free or substantially free of adhesive, or has less adhesive applied to it than does the rest of that surface. This provides a finger lift region (26, 28) of the film at an edge of the surface covered thereby.</p> |
