Double side cylindrical lens array developed by SUNA-opto is a high-precision micro lens array product prepared by lithography-etching / nanoimprint-etching process. It can realize recessed spherical/cylindrical lens structure, support spherical/aspherical surface, double-sided structure and customized array channel number, and adapt to the multi-channel optical coupling and light field shaping requirements of optical transceiver, CPO Application, WSS Application and other scenarios.