A truly high-quality lightbox has an efficient diffusion pattern giving either,：1) an even glow throughout the panel；2) one that transmits more light to the center of the panel.
A light box[light box?:light box] purchaser needs to be aware of many fake manufacturers, or manufacturers making false claims about how their lightboxes are "homogenous" or utilize diffusion patterns (see the comparison images). Many of these 2nd tier manufacturers take short cuts, in many cases to avoid existing patents, and print[print?:printing image graphic cutting solution] or engrave a pattern in the acrylic panel that has no logic to it. Their patterns do nothing to transmit or diffuse the light in any logical manner. It is just a grid or pattern put on the acrylic to fool the consumer into thinking it is a technically advanced lightbox.
We have seen countless samples whereby there is a straight grid pattern (which is no pattern) imprinted in the acrylic. We scratch our heads saying to ourselves, "what are these guys thinking, what is the purpose of this pattern?" A true light diffusion pattern will not be "uniform", but an irregular pattern calculated by algorithms that take into consideration the area of the panel, the distance between lamps, the thickness of the acrylic, and the wattage of the lamps. Most of these algorithms and techniques are patented.
