Farizeh+Bedaiwi


 * //__ LCD Projector __//**


 * Introduction:

Many think that a LCD projector will not assist students with special needs. However, a LCD projector will help students that have different IEPs that can not see the notes/work. A LCD projector will help the students that have a issue with seeing the words. I have two students in Montclair High School, that can not see the words. I enlarge the words and the LCD projectors helps them when they are taking notes in class.** o Projector management software and hardware solutions for the audio visual industry to assist in controlling and maintaining projectors, plasma & LCD displays, document cameras, video switchers over Ethernet networks. o LCD projectors - start with a source of light (lamp) and split the light into three beams. Each beam passes through its own LCD panel. The LCD panels each have hundreds of thousands of tiny pixels, the higher the resolution, the more pixels. Data determines whether light is allowed to pass through each one. o One panel has a red filter, one a green, and one a blue filter. The light is then recombined, using a dichroic prism. The combined, now in full color, passes through the lens and hits your screen. o DLP projectors (except 3 chip). Again, start with a lamp light source. Instead of passing light through an LCD panel, it is reflected off of a DLP chip (which has hundreds of thousands of tiny mirrors), which modulates the light. A color, spinning wheel (referred to as a color wheel), combined with timing, allows the light to come out the correct colors, and pass through the lens on its way to the screen.
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 * ** $ cost: $250-500 DOLLARS **
 * ** What is it? How does it work? **
 * LCD is acronym for ‘Liquid Crystal Display’. The paradox here is that we are using the term liquid and crystal together. Well, this is the case of the LCD Projector the heat from the halogen bulb converts the crystal into a liquid.
 * The LCD video projector contains three LCD panels. At the center of the projector is a halogen bulb, which is surrounded by the panels. The panels produce light. As the halogen bulb heats up, the crystals melt and allow more light to pass through. Hence, the intensity of the halogen bulb brings about the difference in the tones. Higher the temperature of the bulb, lighter the tone and vice a versa. Images travel to the tube present inside the projector from the DVD player or the satellite box. These images in turn bounce on a screen that is coated with phosphor. Every fragment of light hitting the screen is termed pixel. On hitting the screen, the pixel breaks down into its color component that is red, blue or green.
 * The heat produced by the halogen bulb is controlled by the voltage that flows into the LCD video projector. Considering the voltage that flows into the projector, the 3 LCD panels can produce more than sixteen million colors. This is what enables us to view all the subtle colors of a sunset.
 * A single panel is for a single color; meaning one panel handles all the pixels that are created by the red color, the second for blue and the third for green. The color images travel as three separate beams of light and hit the wall. Here the colors fall on each other to produce the true color.
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