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Overview 23
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• If the projector is ceiling-mounted, install the breaker for turning off the power in
case of anomaly. Let everyone involved with the use of the projector know that
fact.
Projection distance and size
Use the figures, tables, and formulas below to determine the projection size and
projection distance.
(Projection sizes are approximate values for full-size picture with no keystone
adjustment.)
Connection
When connecting a signal source to the projector, be sure to:
1. Turn all of the equipment off before making any connections.
2. Use the correct signal cables for each source.
3. Ensure that the cables are firmly inserted.
In the connections shown below, cables are not included with the projector (see
). Cables are commercially available from electronics stores.
a is the distance (m) between the
lens and the screen, and
corresponds to a range of 1.15 m to
10.00 m. H is the height from the
image bottom to the center of the
lens.
a (min length) =
a (max length) =
projection size
(inches)
projection distance a (m) height
(H) (cm)
min length
(zooming
max)
max length
(zooming
min)
30 1.00 1.22 7.54
36 1.20 1.47 9.05
40 1.33 1.63 10.06
60 2.00 2.44 15.09
80 2.66 3.26 20.12
100 3.33 4.07 25.15
150 5.00 6.11 37.72
200 6.66 8.14 50.29
250 8.33 10.18 62.87
300 9.99 --- 75.44
90
°
Screen
As seen from above
a
H
90
°
As seen from the sid
e
Lens center
projection size (inches)
30.03
projection size (inches)
24.69
p.15