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===Interference pattern based===
===Interference pattern based===
Interference based devices are also called holographic devices. The display device modulates light as in wave optics that interferes with itself and forms a pattern at some distance. This is the rarest type of device.
Interference based devices are also called holographic devices. The display device modulates light as in wave optics that interferes with itself and forms a pattern at some distance. This is the rarest type of device.
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+[[Category:Display]]