| 摘要 |
The present disclosure is directed to a molded reflective structure (10) for a light source, which may be a light-emitting diode "LED". The structure (10) includes a reflector (12) which defines a cavity (20) therein. The cavity (20) is surrounded by at least one reflective side wall (18, 32, 34, 36, 38) and has a greatest dimension of less than about 50 mm. The at least one reflective side wall (18, 32, 34, 36, 38) further has an initial reflectance at 460 nm of greater than about 85% and an initial whiteness index of greater than about 80. The reflector (12) is made from a thermoplastic polymer composition that contains a material such that the at least one reflective side wall (18, 32, 34, 36, 38) absorbs light in the ultraviolet and violet region of the electromagnetic spectrum and re-emits light in the blue region. |
