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ProjectorsIMEX supplies a range of different projectors from worldclass companies:
• Panasonic - PT-LB10VE We sell our projector range with or without a whiteboard solution throughout education centres in Ireland and the UK. Building on the Philips Bsure range (of which we have one in every education board in Ireland as part of our largest ever order of whiteboards), the new projectors bring further improvements and features at a competitive price. Negotiations with our suppliers allow us to provide such products as an official supplier - a recognition of our continued success in the education sector and an extension of our current portfolio. Our product range was carefully selected with business and education use in mind. IMEX looks for well established brand names, good feature set products, long bulb life and a top quality projection view. Your purchase is secured with our pedigree in our Bluetooth Interactive Whiteboard Systems, our prestige in the education sector and the high quality support we provide. HelpTo help make your purchase, just get in touch with us. However, there are a few terms worth understanding... ANSI LumenThis is the measurement used to determine the brightness of a projector. However, the brightness of two projectors may be the same, but if different type lamps are used, such as metal halide or halogen, then a noticeable difference can be seen between the brightness of the two. Digital KeystoneKeystoning, is when the projected image is not a square/rectangular shape. The top and bottom are different lengths giving a trapezium shape. This correction facility results in a squarer, more professional image. ResolutionThis is the accuracy of the image that the projector casts. Modern projectors fall into two categories - SVGA (800 x 600 pixels) or XGA (1024 x 768 pixels). Most computers also output a signal which is either SVGA or XGA. To check, go to Control Panel and select 'Display', then click the Settings tab. Next to 'Screen Area' you'll see a slider which shows what resolution is in use. If it's 800x600, it is SVGA. If it's 1024x768, it is XGA. Most projectors sold today are XGA. This is because most computers sold today are moving to XGA resolution as standard. You can project an SVGA output signal with an XGA projector without significant loss of quality. However, projecting an XGA signal with an SVGA projector can make your presentation look bad. Every projector has a native resolution (sometimes called 'true resolution'). This is the maximum number of pixels it can actually project individually. A SVGA projector can only display 480,000 pixels at a time. So if you take a typical projection screen of 2 metres width, each pixel is going to be a quarter of a centimetre wide, whereas with an XGA projector the image is going to be under a fifth of a centimetre wide, and over 60% more pixels are displayed. This means the image is going to be sharper and less blocky when projecting with an XGA projector. Contrast RatioThis is another factor to consider in determining picture quality. It is a measure of how well the projector can block out light from the lamp i.e. how black is the black? This is especially important for clarity of text, and in home cinema applications. An average contrast ratio is about 400:1. Some projectors have contrast around 800:1. |
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