WUHAN, May 16 (Xinhua) -- The 20th Optics Valley of China International Optoelectronic Exposition (OVC Expo) kicks off today at the China Optics Valley Convention and Exhibition Center in Wuhan, central China's Hubei Province. 

Starting on Friday for three days with more than 20 conferences and special events scheduled, the OVC Expo is expected to attract nearly 400 exhibitors and over 30,000 professional visitors, including many well-known domestic and foreign companies in the field of optoelectronic industry. 

The exhibition areas at the expo feature cutting-edge technologies such as lasers, precision optics, "optics plus robot", etc., aiming to showcase the growth opportunities in the optoelectronic industry.