ALEXANDRIA, Va., March 12 -- United States Patent no. 12,248,143, issued on March 11.
"Compact eyeprint imaging device" was invented by Dong Xu (Beijing) and Weihua Song (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compact eyeprint imaging device is provided. The device includes a plano-convex lens, a right angle triangular prism, a micro lens array, an imaging detector and an external package. The plano-convex lens and the micro lens array are glued on an inclined face of the right angle triangular prism and two right angle faces of the right angle triangular prism are coated with reflecting films, so as to form an integrated combined optical unit, which is inserted into the external package to...