NEC iS15-2K, Руководство пользователя

Страница: 37 / 90

page 2.21
iS15-2K
Cinema Projector: User Manual 2. Installation
Positioning the screen and projector
For optimum viewing, the screen should be a flat surface perpendicular to the floor.
The bottom of the screen should be 1.2m (4 feet) above the floor and the front row
of the audience should not have to look up more than 30° to see the top of the
screen.
The distance between the front row of the audience and the screen should be at
least twice the screen height and the distance between the back row and the screen
should be a maximum of 8 times the screen height. The screen viewing area should
be within a 60° range from the face of the screen.
The image can be flipped for rear projection (see section 4. Using the menus ,
Menu trees ) and displayed without the need for extra mirrors or equipment.
However, you must ensure that there is sufficient distance behind the screen for the
projector to be correctly located.
Rear installation is generally more complicated and advice should be sought from
your provider before attempting it.
Notes
The projector should be
installed as close to the
power outlet as possible.
The power connection should
be easily accessible, so that it
can be disconnected in an
emergency.
Ensure that there is at least
30cm (12in) of space between
the ventilation outlets and
any wall, and 10cm (4in) on
all other sides.
Do not install the projector
close to anything that might
be affected by its operational
heat, for instance,
polystyrene ceiling tiles,
curtains etc.
If the projector must be
mounted close to people or
heat sensitive equipment,
then external ducting will be
required to remove the hot
exhaust air safely.
For more information about
external ducting, see
Fitting
the lamp duct box , later in this
section.