ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,493,173, issued on Dec. 9, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Fixed-focus projection lens module" was invented by Wei-Ting Wu (Hsin-Chu, Taiwan), Cheng-Huan Lyu (Hsin-Chu, Taiwan), Ching-Chuan Wei (Hsin-Chu, Taiwan) and Fu-Ming Chuang (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fixed-focus projection lens module used for projecting an image beam provided by a light valve onto a screen is provided. The fixed-focus projection lens module includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and a light-transmitting element arranged in sequence from a screen si...