1. D

    Is the projection screen gain as high as possible?

    If we want to understand the performance of the projection curtain, we must first understand the following parameters. We usually use gain to describe the reflective ability of a curtain. Project light onto a fully diffuse surface and set the reflected brightness to 1. Then, under the same...
  2. D

    How to choose the projection screen?

    The screen material have white plastic screen, gray plastic screen, Pearlescent Cinema White Plus screen, PVC screens, glass fiber screens, metal screens, ambient light rejecting screens... White plastic screen: Advantages: cheap, the surface of the screen can be cleaned, the color reproduction...