July 19th, 2009 | 
Author: An LCD multimedia projector can be a great asset to you, or your company. But, lets face it. They are not a dime a dozen yet, and most of them require significant financial investment. You need to make an informed choice.
There are a lot of makes and models around now, and you really need to do your homework when you are looking around to purchase.
Here are the top 7 factors to take into consideration.
1) Environment you intend to use it
Of all the different things that need to be taken into consideration, this is probably the most important, as all other factors are going to depend on it.
Will you be using your LCD projector in areas where there is a high level of ambient light ? Are you going to be doing presentations, or predominantly showing movies ? Do you have to keep moving it, or is it permanently installed in one location ? Will you always be using a single PC as your video source, or do you wish to be able to connect several video sources (either individually, or at the same time) ? Are you on a restricted budget ?
2) Brightness and Contrast
This is probably the second most important factor to consider. You must make sure that your projector has sufficient light output to be clearly visible. If you are going to be using your unit in areas where there is high background light then this is even more important. Nobody will enjoy a presentation that they battle to see.
The brightness is measured in Lumens. A brightness output of 1000-2000 Lumens is usually fine for a smaller office or classroom environment, and an output of 2000 Lumens or more is sufficient for bigger classrooms or conference rooms. You should not be considering anything with less than 1000 Lumens of output.
The contrast is always expressed as the ratio between the lightest and the darkest parts of the display. You should not be considering any LCD multimedia projector with a contrast ratio of under 400:1, especially if you are going to operate in an area with background light. Low contrasts give a “washed out” looking display.
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Posted in Advance Technology
There are many electronic gadgets which are using the memory card and are providing various kinds of advanced features and one best example is the mobile phone.
Using a memory card with high data storage gives you the freedom to utilize your device more effectively.