Video Projector Guide

Well; the world of Projection is certainly a vast place to wonder
uninformed, so get informed. I will try to keep this guide as simple as

Things to look for when buying a projector: Manufacturer/Make There are many projector manufacturers these days that make it seem
impossible to choose from. But to make it simpler, many manufacturers now a
days use parts that are supplied from other manufacturer. In other word not
all the parts in a projector is manufactured by the same manufacturer. Thus
many projectors already have similar components incorporated into them.
Always read reviews posted on computer magazines and online computer
magazines before purchasing high end/high priced projector. Look for a
company that offers the best warranty & support. Brands like Sony,
Panasonic, Toshiba, Sharp, In-focus, View sonic, Mitsubishi, Epson are
amongst the best there is.

Technology There are many technologies available today. But the main two types are LCD
& DLP. In simple DLP which stands for Digital Light Processing uses hair
width tiny mirrors to reflect light into a screen. DLP offer better overall
image but cost a lot more. So for home users its better to opt for LCD
based projector because of there much lower price and higher availability.
Also LCD projector offer excellent image that is comparable to DLP. Big
companies and presentation oriented businesses well find DLP a better
choice. There are also projections panels. Projections panels are a form of
transparent display that are placed over an ordinary Overhead projector and
used to project the same type of video sources that normal projector use.
Projection panels are cheaper than the types described earlier. CRT Projectors are an old projection technology that is no longer used
these days.

Resolution Resolution is very important aspect to consider when purchasing a
projector. Many older models are VGA (640*480) & SVGA (800*600); these
models are good for displaying movies and other low resolution images, but
will no be sufficient for projecting high quality images demanded by high
end application such as 3d modeling, games, simulators and CAD. Check the
simple chart below:

640*480 (VGA) resolutions are good for Video Games, VHS, VCD and Standalone
DVD users. This panel is perfect for DIYers wanting to keep costs at lowest. 800*600 (SVGA) resolutions are perfect for Computer based DVD playback and
normal Windows and operation system work. (Plus all the above) 1024*768 (XGA) resolution is perfect for high resolution Computer Games and
design applications such as AutoCAD (plus all the above) 1280*1024 (SXGA) resolution is perfect for HDTV applications and computer
software that require high detail (plus all the above)

Color Depth Color depth states how good the LCD represents color. It’s the number of
colors a monitor or an LCD panel is able to show. A good color depth is
16-Bit; although 24-Bit is strongly advised, this is the color depth that
most high end projection panels have.

Lamps An important thing to investigate is the type of lamp used. Check the
replacement price of lamps and life expectancy. It would make you no good
if you purchase a low price projector and later find out that every lamp
replacement will cost you 400$. New lamp models can work for a minimum of
10,000 hrs.

Brightness Brightness output is expressed in lumens. The higher the lumens the better
the image is displayed in less than perfect lighting conditions. Some new
projector models can display a vivid image even with the light on. 2000
lumens is a good choice for home use. Choose 3000-4000 for presentation
theaters and jobs that require a bright image in a not too darkened room.
Lumens rating of below 2000 such as the low priced 1300 models will have to
be operated in a completely darkened room (Pitch Black).

Connections Connections are a very important factor when choosing a projector.
Composite, S-Video and RGB is almost standard on most models. You will need
RGB for hooking your computer or laptop; Composite & S-Video for connecting
DVD players and VCRs. Some newer models have DVI inputs too that enable
them to be connected to high quality video systems like a video editor or
digital video cameras. A remote control is a must; you don’t wan to get out
of your comfy chair every five minutes. Some applications require two RGB
connections for simultaneous viewing of different video sources, so make
sure to check for it if you need it.

Long throw/Short throw projection It’s important to decide where you are going to place the projector. If the
projector is going to be placed in front of an audience then you will need
a short throw projector. And if you need to fix the projector some where
behind the audience (Far from screen) you will need a long throw projector.
What happens when you use short throw projector for a behind the audience
application is that the image will be too large to fit on screen, and if
you use a long throw projector for short distances you will get a very
small and unclear image.

DIY Projectors Well this is interesting. Did you know that you can build a projector
yourself, it’s not that hard really and it will cost you a fraction of
retail prices? You should have basic knowledge with DIY projects. The image
quality is very good you won’t believe it. Though some patience is required
in order to complete the projector.


** You are free to publish this article by any delivery method you see fit.
But you are kindly asked keep the article intact and as is.

Riad Haddad is a Software Developer and Internet Marketer specializing in
state of the art custom solutions; from database development to website
marketing. []

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