Costar Group Co., Ltd. develops, manufactures, sells, and services optical components in China. It provides lens, prism, optical lens, optical accessories, photoresistor, etc., which are mainly used in digital projectors, digital cameras, smart phones, security monitoring products, etc.; and night vision sights, observation sights mirrors, aiming and target calibration systems, reconnaissance monitoring and display equipment, range of laser range finders, photoelectric countermeasure equipment, etc., which are mainly used in light weapons, individual soldier systems, and other fields. The company also offers projection display products, including ultrashort-throw projectors, engineering projectors, miniature projectors, and other product types, as well as multimedia classroom system solutions that are mainly for users, such as schools, commercial enterprises, and families. In addition, it provides micro-nano optics, functional coatings, new light source digital micro-displays, car networking intelligent interactive automotive optoelectronics, photoelectric reconnaissance, and strategic defense systems. The company also exports its products. The company was formerly known as Lida Optical and Electronic Co., Ltd. and changed its name to Costar Group Co., Ltd. in 2019. Costar Group Co., Ltd. was founded in 1995 and is based in Nanyang, China.