S
P
E
C
F
I
L
E
PT-
LB50NT
Micro-Portable Wireless LCD Projector
As of March 2006
< 5 >
Standard setting-up positions
L
ø49
(1-15/16˝)
ø43
(1-11/16˝)
93.5 (3-11/16˝)
70 (2-3/4˝)
Projected image
Upper edge of projected image
Lower edge of projected image
Projected image
L
L
3
2
8
–
4
0
8
(1
2
-2
9
/3
2
˝–
1
6
-1
/1
6
˝)
A
d
ju
s
ta
b
le
in
2
0
-m
m
(1
5
/3
2
-i
n
c
h
)
s
te
p
.
6
7
.5
(2
-2
1
/3
2
˝)
6
5
(2
-9
/1
6
˝)
E
E
unit : mm (inch)
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.
A: Distance to screen
E: Height from the edge of screen to
center of lens
–
1.2 m /
1.6 m /
1.9 m /
2.2 m /
2.5 m /
2.8 m /
3.1 m /
3.7 m /
4.5 m /
6.2 m /
7.7 m /
9.2 m /
Diagonal image size
(4:3 aspect ratio)
Distance to screen (L)
min.
recommended*
33˝
40˝
50˝
60˝
70˝
80˝
90˝
100˝
120˝
150˝
200˝
250˝
300˝
/
/
/
/
/
/
/
/
/
/
/
/
/
3.9´
5.2´
6.2´
6.9´
7.2´
8.2´
9.2´
12.1´
14.8´
20.3´
25.3´
30.2´
–
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 /
4.6´
5.9´
6.9´
8.2´
9.5´
10.8´
11.8´
14.4´
18.0´
24.0´
30.2´
36.4´
Height from the
edge of screen
to center of lens
max.
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 /
3.6´
4.6´
5.9´
6.9´
8.2´
9.5´
10.8´
11.8´
14.4´
18.0´
24.0´
30.2´
36.4´
7 cm /
8 cm /
11 cm /
13 cm /
15 cm /
17 cm /
19 cm /
21 cm /
25 cm /
32 cm /
42 cm /
53 cm /
64 cm /
2.8˝
3.1˝
4.3˝
5.1˝
5.9˝
6.7˝
7.5˝
8.3˝
9.8˝
12.6˝
16.5˝
20.9˝
25.2˝
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
/
/
/
/
/
/
/
/
/
/
/
/
/
2.7´
3.3´
4.2´
4.9´
5.8´
6.7´
7.5´
8.3´
10.0´
12.5´
16.7´
20.8´
25.0´
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
L (m) = (diagonal screen size in inches) x 0.0307 - 0.031
maximum
L (m) = (diagonal screen size in inches) x 0.0371 - 0.029
Aspect ratio 16 : 9
minimum
L (m) = (diagonal screen size in inches) x 0.0335 - 0.0315
maximum
L (m) = (diagonal screen size in inches) x 0.0405 - 0.0365
Computer data compatibility
This projector accepts up to 91 kHz horizontal scanning frequency and 162 MHz dot clock.
NOTE:
The projector is not fully compatible with RGB signals of which dot clock is higher than 100 MHz.
The display resolution of this projector is 1024 x 768 pixels. If the display resolution indicated in the above data does not match this reso-
lution, the input signal will be converted to 1024 x 768 pixels.
