Overhead projectors use a bright lamp and mirrors to display text or images from a transparency sheet on a wall or screen. If your projector displays a shadow when projecting, you must troubleshoot ...
Slide shows and overhead projectors with images that are crooked, upside down, mirror imaged, or simply lost, are well and truly a thing of the past. Data projectors suited to PowerPoint presentations ...
Visible even next to lamps or sunlight. Vivid HDR at night. Up to 150-inch screen. ALR screen enhances picture quality. No overhead mounting necessary. Expensive. Picture quality still not great ...
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