Yaoming Zhang

Secondary reflection light gathering and heat collecting device with compound curved surface

Solar trough type light concentration and heat collection device

Optical collector with multi-section circular arc

Two-dimensional composite parabolic condenser

Transmeridionally placed heat pipe type compound parabolic heat collector

Dual-layer adjustable type solar-energy heat accumulation device

Compound parabolic condenser combining inside condensation and outside condensation

Movable compound parabolic condenser

Wall-mounted heat collector adopting semi-edge compound parabolic light condensing devices

Curved surface photovoltaic condenser