ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,567, issued on Aug. 5, was assigned to SEIKOH GIKEN Co. LTD. (Chiba, Japan).
"Lens unit" was invented by Tomomi Hirao (Chiba, Japan) and Ryosuke Niwaki (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lens unit includes: a lens including a lens part formed at the center of the lens, and a flange part that extends radially outward from the periphery of the lens part and includes a rear end surface on its rear side; a transparent spacer that is disposed behind the lens in the optical axis direction and used for focusing the lens part, the spacer including a front end surface that opposes to the rear of the lens, a spaced-apart part that o...