US Patent Issued to Lutron Technology on March 18 for "Total internal reflection lens to improve color mixing of an LED light source" (Texas Inventor)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,661, issued on March 18, was assigned to Lutron Technology Co. LLC (Coopersburg, Pa.).

"Total internal reflection lens to improve color mixing of an LED light source" was invented by Fangxu Dong (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are va...