n_sachin84
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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 and LCoS, 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.
Rainbow effect is most visible when bright white areas move quickly across a very dark background, or the other way around. The presence of white or near white is necessary to get the full effect. If for
- See more at: The Technology of Home Theater Projectors and Systems – A Guide to Assist Buyers | Projector Reviews - Information on Projectors
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 and LCoS, 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.
Rainbow effect is most visible when bright white areas move quickly across a very dark background, or the other way around. The presence of white or near white is necessary to get the full effect. If for
- See more at: The Technology of Home Theater Projectors and Systems – A Guide to Assist Buyers | Projector Reviews - Information on Projectors