US Patent Issued to ALPS ALPINE on Dec. 2 for "Lens structure and light source device having lens with half-mirror, and light receiver" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,975, issued on Dec. 2, was assigned to ALPS ALPINE Co. LTD. (Tokyo).

"Lens structure and light source device having lens with half-mirror, and light receiver" was invented by Hiroteru Haruyama (Niigata, Japan), Junya Ogata (Niigata, Japan) and Hironori Namba (Niigata, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light source device includes a light source; a light receiver; a lens disposed on a light-emitting side of the light source; a lens barrel configured to retain the lens; and a half mirror attached to the lens barrel and disposed to face the lens. The lens includes a first lens surface facing the light source and a second lens surfac...