ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,049, issued on March 24, was assigned to ASML NETHERLANDS B.V. (Veldhoven, Netherlands).

"Achromatic optical relay arrangement" was invented by Ferry Zijp (Nuenen, Netherlands) and Ahmet Burak Cunbul (Eindhoven, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lens system including: a first asphercal axicon lens element having a first refractive surface and a second refractive surface; a second aspherical axicon lens element having a third refractive surface similar to the second refractive surface and a fourth refractive surface similar to the first refractive surface, and an aperture stop located between the first asphercal axicon len...