ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,217,623, issued on Feb. 4, was assigned to Transitions Optical Ltd. (Tuam, Ireland).
"Demonstration device for photochromic lenses" was invented by William D. Carpenter (Tuam, Ireland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A demonstration device for demonstrating at least one thermally-reversible characteristic of a photochromic optical article, such as an optical article having a photochromic material, having a housing defining an interior, and an inspection platform within the interior of the housing configured for supporting at least a portion of the optical article. The demonstration device further has at least one ultraviolet light source co...