The projector projects light through the image and then focuses it to the screen creating a reproduction of the picture on the screen. The digital projector is capable of projecting images in the form of pixel. Every pixel has a green, red and blue space where you can switch on or off. The overlap between blue red and green will create a crisp color images. LCD projectors controls the shading scale of pixel that enhances the quality of each image. The color shall be projected through the grayscale of the LCD screen shinning onto the prism which brings light from every LCD screen into a single image and directs it through a projection lens which will shine this image in a full color to the screen.
Most of these projectors use a metal halide lamps to generate the intensity of light for the projector. Light from the lamp passes through dichroic mirrors which allows a single wavelength of light through but also reflects the rest of the light. The dichroic mirrors in the LCD projector filters the red and green light into the respective LCD screens. The remaining light will then be reflected into the LCD screen and then filtered through the LCD image into the prism and then right out through a projection lens into the screen. This makes the full color crisp with an attractive image.
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Types of Projector
1- Portable projectors (LB series)
These projectors are great for small to medium or meeting rooms. They are compact, light-weight and easy to use. The brightness level of these projectors is from 2800 to 3700 lumens while the resolution ranges from XGA and WXGA. This series is the newest brand launched by Panasonic. This type of projector comes with features like the memory viewer function, corner keystone correction and the curved screen correction. Actually this is one of the greatest technology offered by Panasonic.
2- Video projectors
Video projectors generally uses one of the three main technologies; LCD, liquid-crystal on the silicon and DLP. Every technology gives its own advantages and disadvantages depending on the kind of the content the user wants to project into the display and he setup of the room.
3- DLP (digital light processing)
These projectors contains an array of microscopic mirrors which tilt either towards the light source in a projector or away from the projector to create dark or light pixel on a projection screen. These projectors are available in the single chip versions and three chip versions. The single chip versions offers the sharpest image which you usually find in the home projector. DLP projectors normally use single chip while other types use three chips which is also called panels. DLP projectors are best for watching 3D movies. The advantages of these projectors include fast motion, 3D, sharpness and brightness.
4- Installation projectors (VX series)
The VX series are generally used in seminars, museum or exhibitions, lecture rooms, corporate and boardrooms. The great thing about these projectors is there brightness range. This range can reach up to 5500 ANSI lumens. Projectors in this series give a miracast wireless projection where the user can project using laptops or cellphone. For wireless presentations, these projectors are great to use.
5- Short throw/ultra-short throw projectors
They are great for rooms with limited space because the user can project without setting up a projector from afar. These projectors have ability to project well. The short throw/ ultra-short throw projectors have interactive function and the memory viewer function, corner keystone correction, USB display function and curved screen correction function like the portable projectors. The brightness levels of this projectors ranges from 2800 to 3500 lumens. The resolution ranges from the XGA to WXGA
Projectors are optical devices used to present images, presentations, videos or text in a screen or any surface. Projectors can be used in different ways and there are different types of projectors which vary according to their use. The above types of projectors are the ultimate projectors that you may wish to have in your home, business, or meetings.