Scientific popularization demonstration device for polarized light material

The utility model relates to a scientific popularization demonstration device for polarized light materials. The utility model provides a demonstration device for people to recognize and know that light is a transverse wave. The utility model is characterized in that more than two polarized light sheets with different polarization directions are orderly pasted on the inner wall of a transparent tube; both ends of the transparent tube are closed; a pellet is arranged in the transparent tube; when the transparent tube is rotated, the backward and forward rolling of the pellet 7 in the transparent tube 4 can be seen, and the pellet 7 is not restricted by a wall formed from the polarized light sheets at the center of the transparent tube. By the demonstration of the device, viewers can know the characteristics of light, and recognize the characteristics of some optical materials.