US Patent 10549683 Vehicle exterior illumination

A vehicle may include a window including an outer layer, perovskite adjacent to and inboard from the outer layer, and a UV blocking layer inboard from the perovskite; and a UV laser mounted on a vehicle exterior and directed toward the window. The vehicle may also include an exterior body panel having an outer layer of clearcoat, an adjacent layer of perovskite inboard from the clearcoat and a layer of basecoat inboard from and adjacent to the perovskite.