ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,923, issued on June 17, was assigned to NICHIA Corp. (Anan, Japan).
"Optical member and light source module" was invented by Norimasa Yoshida (Komatsushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical member includes: a plurality of light controllers, each including: a first surface, a convex surface that is located opposite to the first surface and is curved in a direction away from the first surface, and a concave surface that opens at the first surface and is curved from the first surface toward the convex surface. A radius of curvature of the concave surface is less than a radius of curvature of the convex surface. In a plan ...