Rainbow Effect. Getting started....
The name RainbowEffect,is meant to give you various meanings at first glance and, I don't want to harm your imaginations.But I will get a head start by letting you guys know what "Rainbow Effect" is, from the perspective of a multimedia personality.
The Rainbow Effect often referred to as RBE, is a “stroboscopic” affect that has some people seeing flashes of red green and blue. This is caused by the eye/brain dealing with the effects of projectors using high speed, spinning, color filter wheels. Most color wheels have Red, Green, Blue, and sometimes a clear area, some others add yellow, and others due all six primary and secondary colors (red, green, blue, cyan, yellow, and magenta).
Since a color wheel is needed for this to occur, the only types of projectors affected are DLP projectors, since they are single chip devices, and require a color wheel to add color. The other two major projector technologies are LCD (Liquid crystal Display) and LCoS (Liquid Crystal on Silicon), both of which use three chips (or more technically correct – three panels). There are 3 chip DLP projectors, which have no color wheels, but they start around $10,000 US.
The "rainbow effect" reveals itself by a brief flash of colors when the viewer rapidly looks from side to side on the screen or looks rapidly from the screen to side of the room. These flash of colors look like small flickering rainbows.
Fortunately, this effect does not occur frequently, and many people do not have sensitivity to this effect at all. However, if you are sensitive to this effect, it can be distracting. Your susceptibility to the rainbow effect should be taken into consideration when purchasing a DLP video projector or DLP TV.
-DCM-
23/01/2015
Captured while in a lecture
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