| 摘要 |
<p>A side scattering light guide (10) for emitting light comprises a substantially transparent polymer core (12) surrounded by a transparent or translucent polymer cladding (14). The core (12) includes a light scattering additive (20) arranged to scatter light within the core so that at least some of the light passes through the cladding (14) to be emitted from the light guide (10). The light scattering additive (20) yields a high ratio of forward to backward scattering and is preferably in the form of diffuser particles. The type, density, concentration and/or refractive index of the light scattering additive may be selected to achieve the desired side scattering characteristics. A method of manufacturing the side scattering light guide (10) is also disclosed.</p> |
