Holographic Properties Described:
The first layer of the multi-layer holographic screen is made of transparent plastic material (either polycarbonate or polyester film) having diffracting holographic patterns printed on the back surface; therefore, the projected R,G,B laser images will transmit through the first layer.

The second layer is a diffusely-reflecting holographic screen; thus, the image will be formed and a majority of the R,G,B laser image light will be reflected back toward the viewer. Then, the diffracting holographic patterns printed on the back of the first layer will direct the reflected stereoscopic R,G.,B laser images into pre-determined "left" and "right" viewing zones as the reflected images pass through the first layer, creating the effect of a 3-dimensional ("3D") image to the viewer.

This multi-layer, three dimensional, holographic screen design will pass all the other wavelengths from the ambient light source through the screen, similar to the first holographic screen, reflecting back only the red, green and blue laser wavelengths from the laser video projector used, which will help increase the image contrast ratio.