| 摘要 |
<p>A thin-film phosphor device including a phosphor layer (6a) sandwiched between two insulator layers (2a,4a), includes light guiding means (92) arranged to guide light generated within the phosphor layer in the desired direction. Alternatively or additionally, micro-structures are provided, which are configured so as to maximise the amount of light which may be out-coupled from the device. The microstructures include micro-grooves (5), trenches or pits (7,9), micro-mirrors (18), or tapered edge facets (22).</p> |
