ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,400, issued on July 8, was assigned to KOITO MANUFACTURING Co. LTD. (Tokyo).
"Microlens array and vehicle lamp using microlens array" was invented by Ayaka Kazama (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A microlens array includes a plurality of optical systems. Each of the optical systems includes a pair of an incidence-side lens portion and an emission-side lens portion, respectively. A low refractive index portion is provided between an incident surface of the incidence-side lens portion and an emission surface of the emission-side lens portion. A refractive index of the low refractive index portion is lower than refractive ...