| 摘要 |
A reflective device disposable within a hand piece or other housing for directing a laser beam toward a treatment area includes a substrate, a first layer above the substrate, and a second layer above the first layer, and lacks a reflective dielectric layer. The second layer may have a hardness of at least about 120 Knoop, and the combination of transmissive and reflective properties in the first layer and the second layer can provide reflection of light wavelengths ranging from about 380 nm to about 12,000 nm. Reflective devices according to other constructions are also described. |
