ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,242, issued on May 27, was assigned to NICHIA Corp. (Anan, Japan).
"Light source device" was invented by Norimasa Yoshida (Komatsushima, Japan) and Tsuyoshi Okahisa (Tokushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light source device includes: a light emitting device having an upper face including a light emission face; and a first lens having a lower face that faces the light emitting device, and an upper face opposite the lower face. The lower face of the first lens includes: an entrance part located in a center of the lower face where light from the light emitting device enters, and a light guide part located outward of the entr...