Costar Group Co., Ltd. develops, manufactures, sells, and services optical components in China. Its products include lenses, prisms, optical accessories, and photoresistors used in digital projectors, cameras, smartphones, and security monitoring. It also provides night vision sights, observation mirrors, aiming and target calibration systems, reconnaissance monitoring equipment, laser range finders, and photoelectric countermeasure equipment for light weapons and individual soldier systems. The company offers projection display products such as ultrashort-throw, engineering, and miniature projectors, along with multimedia classroom solutions. It also 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 exports its products. Formerly known as Lida Optical and Electronic Co., Ltd., it changed its name to Costar Group Co., Ltd. in 2019. Founded in 1995, it is based in Nanyang, China.