ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,999, issued on May 13, was assigned to SIGNIFY HOLDING B.V. (Eindhoven, Netherlands).

"Lens plate and a lighting device having the lens plate" was invented by Lan L Deng (Shanghai) and Li L Wang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lens plate has an array of convex lenses each having a top portion which forms a light input surface for facing a light source and a base which forms a light exit surface. Each convex lens has a height H and a diameter D at the base, wherein H/Dless than0.85. The lens plate for example has a height from the base of the convex lenses to the top portions in the range 1.5 mm to 5 mm."

The patent was fi...