ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,917, issued on April 21, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Projection device" was invented by Wei-Min Chien (Hsin-Chu, Taiwan), Yen-Ting Lin (Hsin-Chu, Taiwan) and Yao-Hung Chen (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection device includes a shell, a lens, two first ribs, two second ribs, and a sliding cover. The shell has a top plate, a left sidewall, and a right sidewall, the top plate is respectively connected to the left sidewall and the right sidewall, and the top plate has an opening. The lens is disposed in the shell and exposed by the opening. The two first ribs are disposed on the top pla...