Hitachi CP-D10 Operating Manual page 105

Arrangement (continued)
<CP-D20>
Refer to the illustrations and tables below to determine screen size and projection distance.
The values shown in the table are calculated for a full size screen: 1024 x 768
a Screen size (diagonal)
a
c2
c1
b
Suspended from the ceiling
b
c1
a
c2
The screen position may shift after installation if the projector is suspended from the
is necessary, consult with your dealer or service personnel.
The projected image position and/or focus may change during warm-up (approx. 30
minutes after the lamp is turned on) or when the ambient conditions change. Readjust
the image position and/or focus as necessary.
screen carefully to have better performance.
- A soft screen such as a pull-down screen may cause serious distortion of a projected image.
A hard screen such as a board screen is recommended for use with this projector.
- A high-gain screen such as a bead screen that has narrow viewing angle is not suitable
for this projector. A low-gain screen (around 1.0) such as a matte screen that has wide
viewing angle is recommended for use with this projector.
- A screen with a weave pattern may cause moiré on the projected image, which is not a failure
of the projector. A screen that has less moiré effects is recommended for use with this projector.
WARNING
place the projector where the air from an air conditioner or similar unit will blow on it directly.
and removing the projector with the mounting accessories to the service personnel.
CAUTION
Position the projector to prevent light from directly hitting the projector's remote sensor.
NOTE
The projector may make a rattling sound when tilted, moved or shaken,
this is not a failure or malfunction.
b Projection distance (±8%)
Screen size
a
(diagonal) Projection distance
m m
type(inch)
60 1.5 0.603
70 1.8 0.703
80 2.0 0.804
90 2.3 0.904
100 2.5 1.005
projector and other objects such as walls. Do not place or
attach anything that would block the lens or vent holes.
18
(
projector, consult your dealer about your installation.
7
c1 , c2 Screen height
b c1
Screen height
inch m inch
24 0.157 6
28 0.172 7
32 0.187 7
36 0.203 8
40 0.218 9
c2
Screen height
m inch
1.071 42
1.239 49
1.407 55
1.574 62
1.742 69