Panasonic PT-LB75NT Spec File page 5
Portable lcd projector
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Also See for PT-LB75NT:
- Specification sheet (10 pages) ,
- Product dimensions (1 page) ,
- Specifications (36 pages)
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S
F
P
E
C
I
L
Portable LCD Projector
Standard setting-up positions
Upper edge of projected image
Projected image
Lower edge of projected image
Projected image
Projection size
Projection distance (L)
(diagonal)
Min (wide)
0.84 m
/
33˝
–
/
1.02 m
/
40˝
1.1 m
/
1.27 m
/
50˝
1.4 m
/
1.52 m
/
60˝
1.7 m
/
1.78 m
/
70˝
2.0 m
/
2.03 m
/
80˝
2.3 m
/
2.29 m
/
90˝
2.6 m
/
2.54 m
/
100˝
2.9 m
/
3.05 m
/
120˝
3.5 m
/
11.4´
3.81 m
/
150˝
4.3 m
/
14.3´
5.08 m
/
200˝
5.8 m
/
19.0´
6.35 m
/
250˝
7.3 m
/
23.8´
7.62 m
/
300˝
8.7 m
/
28.6´
Calculation of the projection distance
For a screen size different from the above, use the equation below to calculate the projection distance.
Aspect ratio 4 : 3
minimum
maximum
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°.
As of May 2008
E
(1-15/16˝)
(1-11/16˝)
L
(7-11/16˝)
L
70 (2-3/4˝)
L
Height from the edge of screen
Max (telephoto)
–
1.1 m
/
3.7´
3.7´
1.4 m
/
4.5´
4.7´
1.7 m
/
5.6´
5.6´
2.1 m
/
6.8´
6.6´
2.4 m
/
7.9´
7.6´
2.8 m
/
9.1´
8.5´
3.1 m
/
10.2´
9.5´
3.5 m
/
11.4´
4.2 m
/
13.7´
5.2 m
/
17.1´
7.0 m
/
22.9´
8.7 m
/
28.7´
10.5 m
/
34.4´
L (m) = (diagonal screen size in inches) x 0.0292 – 0.036
L (m) = (diagonal screen size in inches) x 0.0351 – 0.044
ø49
ø43
195
to centre of lens (H)
0.08 m
/
0.28´
0.10 m
/
0.33´
0.13 m
/
0.42´
0.15 m
/
0.50´
0.18 m
/
0.58´
0.20 m
/
0.67´
0.23 m
/
0.75´
0.25 m
/
0.83´
0.30 m
/
1.00´
0.38 m
/
1.25´
0.51 m
/
1.67´
0.64 m
/
2.08´
0.76 m
/
2.50´
NOTE: Distances calculated with the above equations will include a slight error.
• Vertical direction
The projector may not be angled horizontally.
PT-LB75NT
unit : mm (inch)
L: Distance to screen
H: Height from the edge of screen to
center of lens
NOTE:
Illustrations show the projector installed
using optional ceiling bracket.
This illustration is not drawn to scale.
* This distance is especially recommend-
ed 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.
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