Projector|Projector Screen

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A projector or image projector is an optical device that projects an image (or moving images ) onto a surface, usually a projection display screen. Most projectors create an image using shining a light thru a small transparent lens. However, a few more recent forms of projectors use lasers to create stunning images. A digital retinal show, or retinal projector, is a projector that initiatives a picture immediately on the retina instead of using an outside projection display. The standard form of projector used today is called a video projector.Video projectors are digital replacements for older varieties of projectors such as slide projectors and overhead projectors. These earlier types of projectors have been replaced with digital video projectors; however antique analogue projectors are nevertheless used at some locations. The latest types of projectors are handheld projectors that use lasers or LEDs to task photographs.