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PT-
LX22
LCD Projector
As of June 2012
SFL11M018-1
6 / 1 2
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) × 0.0345 – 0.0233
maximum
L (m) = (diagonal screen size in inches) × 0.0414 – 0.0237
NOTE:
Distances calculated with the above equations will include a slight error.
0.76 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
1.0
1.4
1.7
2.0
2.4
2.7
3.1
3.4
4.1
5.2
6.9
8.6
10.3
1.2
1.6
2.0
2.5
2.9
3.3
3.7
4.1
4.9
6.2
8.3
10.3
11.0
0.07
0.09
0.11
0.13
0.15
0.17
0.20
0.22
0.26
0.33
0.44
0.54
0.65
30˝
40˝
50˝
60˝
70˝
80˝
90˝
100˝
120˝
150˝
200˝
250˝
300˝
/
/
/
/
/
/
/
/
/
/
/
/
/
(2.9)
(3.9)
(4.9)
(5.9)
(6.9)
(7.9)
(8.9)
(9.9)
(11.9)
(14.8)
(19.8)
(24.8)
(29.8)
(3.5)
(4.7)
(5.9)
(7.1)
(8.3)
(9.5)
(10.7)
(11.9)
(14.3)
(17.8)
(23.8)
(29.8)
(36.1)
(0.21)
(0.29)
(0.36)
(0.43)
(0.50)
(0.57)
(0.64)
(0.71)
(0.86)
(1.07)
(1.43)
(1.79)
(2.14)
*
*
Projection size
[diagonal]
Projection distance [L]
Min [wide]
Max [telephoto]
P
Height from the edge of screen
to center of lens [ H ]
Projection distance for 4:3 aspect ratio screen
unit: meters (feet)
NOTE:
• The value for L (distance to screen) varies slightly depending on the zoom lens characteristics.
• At the shortest projection distance, the zoom lens characteristics may cause slight image distortion.
* Lens performance cannot be guaranteed for projection sizes larger than 11.0 m (36.1 ft).
+30°
–30°
–20°
+20°
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°.
• Horizontal direction
The projector may be installed at a horizontal
angle of 20°.
