Patent ID: 7251082

Claim:
A photochromic/vitroceramic window assembly that restores some of the natural illumination and warm blue-green colors normally excluded from the interior of an enclosed space after blocking at least a portion of infrared and/or UV light, comprising: a) A transparent window pane; b) a first self-adhesive material adhered to the exterior of said window pane, of a transparent plastic film containing a UV-activated photochromic dye; and c) a second self-adhesive material adhered to the interior of said window pane, of a transparent plastic film containing i) a rare earth doped vitroceramic that up-converts any infrared not blocked by said first self-adhesive film to a warm visible blue or green color, and ii) a diarylethene that converts any UV not blocked by said first self-adhesive film to a visible yellow-white color.