In our PREVIOUS blogs we started introducing SOME of our PRODUCTS and what to look for when CHOOSING one. WE’LL continue on and discuss some basic features of a projector.
While some of us prefer THE CHEAPER brand and model YET it might not be the suitable unit for you. A PROJECTOR’S sELLING point focuses more ON resolution, lamp/life source, types and contrast ratio. Here are the reasons why.
We have different technologies used by projectors, which are LCD and DLP. LCD or Liquid Crystal Displays projectors work by using polarized mirrors that pass and reflect only certain colors of light. This causes each channel of red, green and blue to be separated and later re-converge via a prism after passing through an LCD panel that controls the intensity and saturation of each color.
The DLPs or Digital Light Processing projectors can be classified as one-chip or three-chip. Each chip houses millions of mirrors that reflect light thousands of times each second. One-chip DLP projectors can produce more than 16 million colors while three-chip models can produce more than 35 trillion colors. This allows DLP projectors to reproduce more natural and lifelike images. The closeness of each mirror within a chip makes it difficult to see any spaces separating the pixels and in turn creates a more fluid and crisp image compared to LCD technology.
The next thing we should check on is its brightness, which is measured in lumens. The surroundings where the projector is used would be your initial basis in choosing the best lumens that you might require. The larger your venue or room is, the higher the lumens we need.
Consider also the lenses. If the projector is to be placed close to the screen, a short-throw lens may be needed. If the projector will be placed at the back of a room or large arena which is farther away from the screen, a long-throw lens may be necessary. The distance from the projector to the screen and screen size must both be taken into account.
Review also the projector’s resolution. Resolution is one of the most important factors in determining the amount of detail you will see. For computers, the first number listed on the product expresses how many pixels wide the screen is; the second number expresses how high it is. For example, an LCD projector with a resolution of 1280 X 720 means the panel is 1280 pixels high and 720 pixels wide. But for a video projector, the numbers indicate the lines per inch which you can see on a test pattern. In either case, resolution indicates how much detail the image will have. From best quality to least, the four main categories of resolution are UXGA, SXGA, XGA, and SVGA. A UXGA projector will have resolution of 1,600 x 1,200, the highest quality; whereas SVGA will have 800 x 600. If you just need a projector to show PowerPoint presentations, SVGA is right for you. On the other hand, if you use a more graphics intensive video, choose a higher resolution projector.
Lastly, the Contrast Ratio compares the brightest white to the darkest dark. The larger difference means there will be more visible richness in the image.
Now you can now decide what projector is the right one for you. It might not be the expensive unit but it serves its purpose.