| 摘要 |
An apparatus and method for attenuating light transmitted through a surface. The apparatus may include a light attenuator comprised of a substrate and an electrostatic layer. The electrostatic layer may be configured to electrostatically couple with the surface. The electrostatic layer may also electrostatically couple with the substrate. The substrate, the electrostatic layer or layers, or a light attenuating substance combined with at least one of the substrate and the electrostatic layer may attenuate light transmitted through the surface. The method may include positioning the light attenuator on the surface between the light source and the light receiver. |
