badge assemblies emanating visible iridescent patterns

A badge assembly that includes a translucent, polymeric badge comprising an edge and an interior surface with a diffraction grating having a thickness from 250 nm to 1000 nm and a period from 50 nm to5 microns; LED sources oriented toward the edge; and fascia configured to obscure the sources. Further, the grating diffracts light from the LED sources through the badge as a visible iridescent pattern. 种标志组件包括半透明的聚合物标志、朝向边缘定向的LED源；以及配置为遮蔽源的护板，该标志包括边缘和具有衍射光栅的内表面，该衍射光栅具有250nm至1000nm的厚度和50nm至5μm的周期。此外，光栅将来自LED源的光穿过标志衍射为可见虹彩图案。