ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,050, issued on April 8, was assigned to FUJIFILM Corp. (Tokyo).
"Projection lens" was invented by Hironobu Kayano (Saitama, Japan), Hitoshi Shimizu (Saitama, Japan), Tetsuo Kamigaki (Saitama, Japan) and Yasuto Kuroda (Saitama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection lens, which is a projection lens to be attached to a projection apparatus body having an electro-optical device, includes: a first focus optical system; a first holding portion that has an attachment portion and on which light along a first optical axis extending in first directions is incident; and an adjustment frame that holds the first focus optical system. ...