Projection Concepts

The Basics of Projection Surfaces

It is best to understand the projections basics before placing a screen order, at the bare minimum you will need to know what type of projection (front, rear or both) you will be using the screen for and if it will be used with one projector or multiple projectors making up one image.

If you need more advice or are ready for a quote on your projection screen, call 800-369-3695 or email our projection experts and they will be happy to answer any of your questions.

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ANSI-Lumen

ANSI-Lumen is the measurement of the luminosity of a projector. It is used to compare projector performance. Luminosity is determined by the intensity of light (in lux) and the size of the illuminated projection surface (in m²).(ANSI = American National Standards Institute, the U.S. authority for standardization of industrial procedures.)

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Image Format

The picture format is the width-to-height ratio of a defined picture. Here are some of the common ratios for screens.

• Square Format 1:1

• Panorama Format 2:1/3:1

• Slide-Format 3:2

• Video Format 4:3

• Cinema or HDTV Format 16:9

• WUXGA Format 16:10 (for Full-HD Projection with 1920 x 1080 Pixels)

When planning for a projection screen, it is useful to know what format will be used most often.

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