Optic reverse identification system with cat eye structure base on piezoelectric device

The invention discloses an optic reverse identification system with a cat eye structure base on a piezoelectric device. The system comprises a signal processing circuit 1, a transmitting/receiving module 2, a light beam adjusting unit 3, a lens 4, a reflecting surface 5, a piezoelectric device 6 and a signal loading circuit 7, wherein the reflecting surface 5 is positioned on a focal plane of the lens 4, the reflecting surface 5 and the lens 4 form the cat eye structure; the cat eye structure is used for reflecting incident light of the reflecting surface 5 reversely, and the transmitting/receiving module 2 is used for receiving the reversely reflected light. The optic reverse identification system is characterized in that the signal loading circuit 7 is used for loading identification code information and driving the piezoelectric device 6 to drive the reflecting surface 5, so that the reflecting surface 5 has concave convex transformation and leaves the focal plane of the lens 4, which results in the change