ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,670, issued on Feb. 17, was assigned to Sony Group Corp. (Tokyo).
"Video projection device" was invented by Yusuke Ogawa (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The purpose of the present technology is to provide a video projection device capable of obtaining a satisfactory video (image) while achieving reduction in power consumption and reduction in size of the device. Provided is a video projection device including at least: a monolithic semiconductor laser array including multiple light emitting units, each of which emits a laser light beam; an optical waveguide that guides the laser light beam in a predetermined direction...