A Liquid Crystal Display uses liquid crystal to project an image or object. The word LCD resembles two states of matter, the liquid and the solid. The meaning of Liquid Crystal Display is approximately clear from its name. People say that these projectors are nevertheless than newer technologies and are compatible with new improvement. At initial stage, it may be difficult and tricky to set up a CRT projector, but the users say that a CRT projectors have a brilliant and outstanding picture quality. Their electricity consumption is also high because of three light guns. These images are processed with help of three separate colored (red, green and blue) CRT tubes.ĬRT projectors are not portable as they are huge in size and heavy in weight. A Lens is kept in front of the CRT face which focuses the image and enlarge it onto a big projection screen.Ī CRT projector focuses on the image or video by its lenses to project it on screen. It uses a tiny cathode ray tube which has high-brightness for image generation. They are:Ī CRT projector is basically a video projecting device. On the basis of its display property, Projectors can be classified in three types. Projectors may be used as an alternative to a television or monitor in large gatherings. This surface is usually light in color and it may be a projection screen, white screen or sometimes a wall.
In simple language, a projector basically adopts the operational principal of image projection whereby the projector accepts a video/image input, processes it with the assistance of its inbuilt optical projection system consisting of a lens & optical source and projects the enhanced output on the Projection screen.Ī projector is an optical device that projects a figure or picture onto a surface. If you move object, it’s called an animated image. Put an object or image in front of a light source and an obscure dim image of the object can be seen onto the wall or display screen.
All children enjoy Shadow play and though it is simple, yet it figures as the basis for projection technology. Projecting things or images onto a display screen is nothing new. Before understanding the concept and working of a Projector, one should know what projection is.
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