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Hd Video Projector Guidance
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A video projector uses a video source input played internally on a small screen. Light is shone through the screen, then captured and focused by a lens or multiple lenses to display on a surface at a given distance. Most projectors today are digital projectors.
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To cast from the ceiling, place the projector upside down and attach it to a ceiling mount. If you don't install it upside down, then it will invert the image. However, ceiling mount compatible units include a feature that allows you to reverse the image to project it with the right side up.
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If you mount the projector behind the screen and cast it from the rear, it will horizontally reverse the image. A unit that is rear-placement compatible includes a feature that allows you to perform a 180-degree horizontal switch so the image has the correct left and right orientation from the viewing area.
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Before cutting into your ceiling and screwing a ceiling mount into position, you need to determine the required projector-to-screen distance. The required distance from the screen is the same as it would be on the floor instead of the ceiling. The best thing to do is find the best spot on a table which will provide the correct distance for the size image you desire, then use a pole to mark that same spot on the ceiling.