US Patent Issued to SHENZHEN NADE OPTICAL on Sept. 30 for "Diopter-adjustable eyepiece optical system and head-mounted display device" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,686, issued on Sept. 30, was assigned to SHENZHEN NADE OPTICAL Co. LTD. (Shenzhen, China).

"Diopter-adjustable eyepiece optical system and head-mounted display device" was invented by Jianfei Guo (Guangdong, China), Hongpeng Cao (Guangdong, China) and Huajun Peng (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A diopter-adjustable eyepiece optical system and a head-mounted display device. The eyepiece optical system comprises a first lens group (T1), a second lens group (T2), and a third lens group (T3) which are sequentially arranged from a human eye (EYE) observation side to a micro image display (IMG) in an optical axis directio...