ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,894, issued on April 7, was assigned to Ushio Denki K.K. (Tokyo).
"Light source device with fly-eye integrator" was invented by Takeo Matsushima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Some parameters are defined that a focal length of the condensing optical system is f, a width orthogonal to an optical axis and having a maximum width of the collimating optical system is b, an axis coinciding with a line segment constituting the width b is an axis B, a width of a projection image on an axis optically equivalent to the axis B is a, the projection image being on a light emitting surface on a back focus surface of the condensing optical s...