What Is The Reflective Refraction Principle Of Reflective Materials?

As the light to the screen is similar to the parallel light, when it reaches the spherical vertex, the angle of incidence is very small, a part of the light is reflected, and the other is reflected again after it is removed, and then it is taken back to the air to return to the front of the screen. When light is irradiated to the spherical vertex, the incident angle is very large, the light is reflected on the glass bead, and some light will be reflected on the other glass beads and then reflected back. Because the glass bead is round and the incident is different, the return light is not parallel light, the effect is equivalent to diffuse reflection, but it is much more efficient than diffuse reflection.