Cover for form-closed wrapping of portion of e.g. pencil, has front edges and hole edge area, from which part of ambient light entering peripheral surface area is discharged in visible manner

摘要

The cover (3) has a peripheral surface area (10), and front edges (5, 6) and hole edge area (9), from which a part of the ambient light (12) entering the peripheral surface area (10) is discharged in a visible manner. The cover is designed from a light collecting optical fiber material. The hole edge area (9) is formed in light discharging edges in an area of its peripheral surface (7).