OMNIDIRECTIONAL HIGH-CHROMA RED STRUCTURAL COLOR WITH COMBINATION METAL ABSORBER AND DIELECTRIC ABSORBER LAYERS

摘要

To provide a high-chroma red omnidirectional structural color pigment with a minimum number of layers.SOLUTION: A high-chroma omnidirectional red structural color pigment is in a form of a multilayer stack that has a reflective core layer, a metal absorber layer extending across the reflective core layer and a dielectric absorber layer extending across the metal absorber layer. The multilayer stack reflects a single band of visible light with a hue between 0° and 40°, preferably between 10° and 30°, on an abLab color map. The single band of visible light has a hue shift of less than 30° on the abLab color map when viewed from all angles between 0° and 45° normal to an outer surface of the multilayer stack.SELECTED DRAWING: Figure 8A