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overhead projector

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Also known as OHP, Overhead projectors, Overhead Projectors

device that projects a transparent image

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Overhead projectors
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Article

Overhead projector in operation during a classroom lesson

An overhead projector (often abbreviated to OHP), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience.

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