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rainbow effect
A sometimes irritating optical illusion produces by many DLP projectors. These are flashes of short tri-color RGB stripes that tend to appear away from the centre of vision while watching a movie. They are more apparent during monochrome, or near-monochrome scenes. They appear to be an artifact of the spinning color wheel used in most DLP projectors. When three-panel DLP projectors become feasible in the home, it is likely that this effect will no longer be a problem because these do not use a color wheel. Manufacturers have attempted to eliminate this effect by increasing the number of color filter windows in the wheel and spinning it faster. Recent high quality DLP projectors have certainly reduced the effect until it rarely appears. Apparently not everyone notices the effect. Unfortunately, I'm one who does.
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- Industry/Domain: Consumer electronics
- Category: Home theatre system
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