Pagina 9 - Projecta Catalogue 2014 EN

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The ultimate purpose of a projection screen is to
ensure that the quality of the projected image is
reflected toward the audience while maintaining or
even improving the projection in brightness or
contrast. There are several factors which determine
the perceived quality and which should be taken
into account when selecting a particular projection
screen and projection surface. All these factors play
an important role and need to be tuned to each
other to create the optimum projection.
Ambient Light
Ambient light is the amount of unwanted light in a room that can affect the projection in a negative way.
Ambient light can come from windows or from room lighting. Ambient light on a projection screen
causes a less bright image. This can be countered by using window blinds to darken the room, using a
projector with a stronger light output or using a projection surface with a higher gain.
Defining
image quality