US Patent Issued to GOERTEK OPTICAL TECHNOLOGY on Oct. 20 for "Projection lens group and projection device" (Chinese Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,769,098, issued on Oct. 20, was assigned to GOERTEK OPTICAL TECHNOLOGY Co. LTD (Shandong, China).

"Projection lens group and projection device" was invented by Pengbo Chen (Weifang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a projection lens group and a projection device. The projection lens group is used to project light, and includes a first lens group and a second lens group, wherein the first lens group and the second lens group are sequentially arranged in a propagation direction of the light, the first lens group has a positive focal length, the second lens group has a negative focal length. A focal length of the first len...