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S PEC F ILE
PT-LW80NT
Portable LCD Projector
As of May 2008 < 5 >
Standard setting-up positions
Lower edge of projected image
Upper edge of projected image
ø49
70 (2-3/4˝)
ø43
(1-15/16˝)
(1-11/16˝)
195
(7-11/16˝)
H
369–449
(14-17/32˝–
17-11/16˝)
Adjustable
in 20-mm
(15/32-inch) step.
65 (2-9/16˝)
13 (1/2˝)
H
Projected image
L
L
L
Projected image
unit : mm (inch)
NOTE:
Illustrations show the projector installed
using optional ceiling bracket.
This illustration is not drawn to scale.
L: Distance to screen
H: Height from the edge of screen to
center of lens
* This distance is especially recommended for ceiling-mounted use and other permanent installations.
NOTE:
Values shown are approximate. The value for L (distance to screen) varies slightly depending on the zoom lens characteristics.
When the shortest projection distance is used, a small amount of distortion may occur in the image due to the zoom lens characteristics.
0.84 m
1.02 m
1.27 m
1.52 m
1.78 m
2.03 m
2.29 m
2.54 m
3.05 m
3.81 m
5.08 m
6.35 m
7.62 m
–
1.3 m
1.6 m
1.9 m
2.2 m
2.5 m
2.8 m
3.1 m
3.7 m
4.7 m
6.2 m
7.8 m
9.3 m
1.1 m
1.4 m
1.8 m
2.1 m
2.5 m
2.9 m
3.3 m
3.6 m
4.4 m
5.5 m
7.3 m
9.2 m
11.1 m
0.04 m
0.05 m
0.07 m
0.08 m
0.09 m
0.11 m
0.12 m
0.13 m
0.16 m
0.20 m
0.27 m
0.34 m
0.40 m
33˝
40˝
50˝
60˝
70˝
80˝
90˝
100˝
120˝
150˝
200˝
250˝
300˝
–
4.0´
5.0´
6.0´
7.0´
8.0´
9.1´
10.1´
12.1´
15.2´
20.3´
25.4´
30.5´
3.9´
4.7´
6.0´
7.2´
8.4´
9.6´
10.8´
12.1´
14.5´
18.2´
24.3´
30.4´
36.5´
0.15´
0.18´
0.22´
0.26´
0.31´
0.35´
0.40´
0.44´
0.53´
0.66´
0.88´
1.10´
1.32´
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Projection size
(diagonal)
Height from the edge of screen
to centre of lens (H)
Projection distance (L)
Min (wide) Max (telephoto)
0.84 m
1.02 m
1.27 m
1.52 m
1.78 m
2.03 m
2.29 m
2.54 m
3.05 m
3.81 m
5.08 m
6.35 m
7.62 m
–
1.3 m
1.6 m
1.9 m
2.3 m
2.6 m
2.9 m
3.2 m
3.9 m
4.8 m
6.4 m
8.0 m
9.6 m
1.2 m
1.4 m
1.8 m
2.2 m
2.6 m
3.0 m
3.4 m
3.7 m
4.5 m
5.6 m
7.6 m
9.5 m
11.4 m
0.02 m
0.03 m
0.04 m
0.04 m
0.05 m
0.06 m
0.07 m
0.07 m
0.09 m
0.11 m
0.15 m
0.19 m
0.22 m
33˝
40˝
50˝
60˝
70˝
80˝
90˝
100˝
120˝
150˝
200˝
250˝
300˝
–
4.1´
5.2´
6.2´
7.3´
8.3´
9.3´
10.4´
12.5´
15.6´
20.9´
26.1´
31.3´
4.0´
4.9´
6.2´
7.4´
8.7´
9.9´
11.2´
12.4´
14.9´
18.7´
25.0´
31.2´
37.5´
0.10´
0.12´
0.15´
0.18´
0.21´
0.24´
0.27´
0.30´
0.36´
0.45´
0.60´
0.75´
0.90´
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Projection size
(diagonal)
Height from the edge of screen
to centre of lens (H)
Projection distance (L)
Min (wide) Max (telephoto)
Calculation of the projection distance
For a screen size different from the above, use the equation below to calculate the projection distance.
Aspect ratio 16:10 minimum L (m) = (diagonal screen size in inches) x 0.0311 – 0.040
maximum L (m) = (diagonal screen size in inches) x 0.0372 – 0.044
Aspect ratio 16:9 minimum L (m) = (diagonal screen size in inches) x 0.0319 – 0.025
maximum L (m) = (diagonal screen size in inches) x 0.0382 – 0.035
NOTE: Distances calculated with the above equations will include a slight error.
Projection distance for 16:10 aspect ratio screen Projection distance for 16:9 aspect ratio screen
Installable Angle
Install the projector at an angle within the range shown below.
• Vertical direction
The projector
may be installed
at a vertical
angle of ±30°.
• Vertical direction
The projector may not be angled horizontally.