The projection
screen - an indispensable element in the presentation chain
by
Otto Tromm
Product Marketing Manager
Projecta
www.projecta.nl
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Ceiling
Mount
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Wall
Mount
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Portable
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The importance of a screen
Here is a situation that happens every day: Days and nights are invested in the preparation and composition of a presentation, and the latest PCs and projectors are used. Finally, the presentation is projected onto any old screen or, even worse, just onto a wall. There is a great chance that a considerable part of the desired effect will be nullified. The image is not clear or cannot be seen from every position. The consequence? The public has difficulty paying attention and your message is lost.
Although many people are unaware of this, the screen is an indispensable link in the presentation chain. After all, however good the projector may be in itself, the image will have to be projected in such a way that the audience can see and read it. With that in mind, the choice of projection screen is of the utmost importance. Remember, the purpose of a projection screen is twofold: reproduction of visual information without loss of image quality, and distribution of the projected light toward the audience. Both aspects are necessary to get your message across.
4 Steps to Selecting the Right Projection Screen
Step 1: Screen Type
Determination of the type of screen is generally the first step. You can choose from the following screens:
1. Ceiling mounted:
Electrical or manual
2. Wall mounted
3. Portable
Generally speaking, if the projection location is permanent, a wall or ceiling screen is preferred. A portable screen is a better choice if you want to project at variable locations.
Step 2: Screen Size
This is a very important
aspect of the screen selection process. Since it will partly determine
how well your viewers will be able to see AND read the information on
the screen (another determining factor will be screen fabric, this is
step 4).
Nowadays, it is not only important that people can view the images,
but also read the data presented.
Therefore, there are several rules which help determine the right screen
size:
1. The maximum distance from the screen should never be greater than
6 X the screen height. If your presentations normally contain a lot
of data, then 4 X screen height is recommended.
2. The distance from the bottom of the screen to the floor should be
at least 50 inches.
3. The minimum distance from the screen to the first row of viewers
should at least 1 X screen diagonal.
Next:
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