Installing Projection Screen; Positioning Projection Screen; Wall Or Ceiling Mounting - Milestone Projecta Manual Del Usuario

4 Installing projection screen

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4.1 Positioning projection screen

• Determine where you would like to mount the projection screen beforehand.
You may do this with the aid of the information on the product information
sheet.Think carefully about the necessary space and the location of any electrical
connections.
• The projector lens should preferably be positioned at a right angle to the vertical
line between the top and bottom of the projection screen.
• The aspect ratio of the projection screen should correspond to the aspect ratio
of the projector.
• Make sure that the projected image will fill the whole projection screen. This has
to do with the zoom factor of the projector.
• There should not be any obstacles between the audience and the projection
screen.
• Make sure that the audience is seated within the range of the ideal viewing angle
for the projection screen. The ideal viewing angle is dependent upon the type of
screen surface. For further information, see www.milestone.com.
• For use in a professional application, maintain a height of approximately 125 cm
between the floor and the bottom of the unrolled projection screen. This will
allow the audience to always see the full projection screen. For use in a living
room (home cinema), a height of 60 to 90 cm is suggested.
• Ambient light has a substantial effect on the image quality. For this reason,
make sure that there is no lighting equipment standing or hanging close to the
projection screen and that no direct light falls on the projection screen. For an
ideal projection quality, it is best to darken the room.

4.2 Wall or ceiling mounting

• For mounting on the wall or ceiling, it is best to use the mounting materials
supplied with the projection screen.
• These materials have been tested and approved for the mounting of the
projection screen to concrete or brick constructions.
Important! You are responsible for finding out (on your own or with
the aid of a structural engineer) whether modified mounting materials are
necessary. For example, if you would like to mount the projection screen to
a wall system made from plasterboard.
• For the installation of an electrical projection screen, determine the location for
the wall switch. Install out of the reach of children and at a minimum height of
1.5 meters from the floor.
• Do not install the switch in the area where the projection screen is to be
unrolled. During the operation of the projection screen, the moving parts should
be within your field of vision so that you can check to see if anyone is standing
within range of these moving parts.
• Special ceiling brackets are available as accessories for mounting the projection
screen to a false ceiling.
• A special wall bracket is available as an accessory for mounting the projection
screen at a certain distance from the wall (for example, if there is an obstacle in
the way).
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