IMAGING MATERIAL WITH IMPROVED CONTRAST

摘要

An imaging material has been developed which provides improved image contrast, increased gain and increased viewing angle. A method for production of the screen element is also described. The imaging material of the invention includes a refractive optical element (202) which redirects incident light along a desired axis, a light transmissive focusing region (205) which diffuses the light along the desired axis, and a controlled light-transmissive region (207) which controls backscatter and increases contrast. The refractive optical element (202) desirably includes an active surface such as a lenticular array embossed thereon which serves to redirect incident light as desired. The focusing region (205) desirably is made of a matrix material (206) having a refractive index n