In many cases frosted glass-like materials are used to create beautiful whether uniform effects. It can still be quite difficult to get the desired effect. Thus, it is possible to emit the light along the plate, but in order to get a more intense effect, it is better to radiate against the plate. See below two examples of the different options.
LEDs illuminate lines along the plate
In this situation, there is a LED strip around the plate pasted. This strip therefore seems inward. This solution is cost efficient often the cheapest. With larger surfaces it will be difficult to illuminate the plate in this way smooth. There will be a drift between the edge of the plate and the middle. In the worst case, there is in the middle of the plate no more light. See below some examples of this solution.
LED lines shine against the plate
By pasting the lines on the wall and allow the plate to shine, the light will be intense. All the light that comes from the LEDs will shine at the plate. To illuminate larger surface smooth are in this way it significantly more LED strip needed. It is important that the correct number of lines of LEDs are used so that you do not get streaky image as seen on the image below.
There are several factors that make sure whether or not you will see stripes. First of all, the type of milk glass or plexiglass and the thickness thereof is of great importance, the light transmittance of various materials varies greatly. So we prefer to use only our PlexiLED plates up to 20% more light transmission than traditional plexiglass plates. The distance between the LED strips, and the distance between the plate and the LED strip is also of great importance. You understand that the closer the strip behind the plexiglass is, the better the line is visible. With our record is the minimum distance between the strip and plate 17mm to see no LED dots. Finally, the kleuze of the type of LED strip of great importance. The light output and beam angle varies sometimes between different LED strips. Keep in mind that the light output of SMD LEDs decreases. When the number of lines, but it is just enough to make the plate opaque to get the chance exists that the lines after some time start to be slightly visible.
Below have been a picture of a test that we have in our workshop for one of our clients. The LED strips are 11cm apart and the plate (3mm) there is 14 cm above. We have previously used our standard 31215 RGB strip with 30 LEDs per meter.