ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,415, issued on Oct. 28, was assigned to TAMRON Co. LTD. (Saitama, Japan).
"Signal light transmission member" was invented by Hideki Nagano (Saitama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A signal light transmission member includes an AR coated lens, a light transmission part, and an optical fiber. The refractive index of the light transmission part has a specific relationship with the refractive index of a core material of the optical fiber. An anti-reflective coating is formed at an interface portion between the lens of the AR coated lens and the light transmission part."
The patent was filed on Sept. 13, 2023, under Application No....