| 摘要 |
A light-emitting panel comprising a plate-like translucent member (1) having a light-emitting front side (3) and, parallel thereto, a rear side (4) which has a plurality of cavities (2). Light can be coupled out by specular reflection from surfaces (8) of the cavities (2). Each cavity (2) has a side wall (7) and a bottom (8), which extends at an angle to said rear side (4). Each cavity (2) comprises a filler element (10) which is in optical contact with a major portion of the side wall (7) of the cavity (2), while there is a distance between the filler element (10) and the bottom (8) of the cavity (2) in order to form a closed space (11). |
