Panasonic PJLink PT-LW330 Operating Instructions Manual page 28

Projection size
Screen diagonal (SD)
0.76 (30")
1.02 (40")
1.27 (50")
1.52 (60")
1.78 (70")
2.03 (80")
2.29 (90")
2.54 (100")
3.05 (120")
3.81 (150")
5.08 (200")
6.35 (250")
7.62 (300")
Projection distance formulas
To use a screen size not listed in this manual, check the screen size SD (m) and use the respective formula to calculate
projection distance.
The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)
If you want to calculate the projection distance with projected image size SD (unit: inch) by substituting, please assign 0.0254
times to the SD value.
For PT-LW330
Screen height (SH)
Screen width (SW)
Minimum distance (LW) = 1.4369 × SD - 0.025
Maximum distance (LT)
For PT-LW280
Screen height (SH)
Screen width (SW)
Minimum distance (LW) = 1.4332 × SD - 0.02327
Maximum distance (LT)
For PT-LB360 and PT-LB330
Screen height (SH)
Screen width (SW)
Minimum distance (LW) = 1.1974 × SD - 0.025
Maximum distance (LT)
For PT-LB300 and PT-LB280
Screen height (SH)
Screen width (SW)
Minimum distance (LW) = 1.1943 × SD - 0.02327
Maximum distance (LT)
28 - ENGLISH
Chapter 2 Getting Started - Setting up
4:3 aspect ratio
Minimum Maximum
distance distance
Height position (H)
(LW) (LT)
0.9 1.1
1.2 1.4
1.5 1.8
1.8 2.2
2.1 2.5
2.4 2.9
2.7 3.3
3.0 3.6
3.6 4.3
4.5 5.4
6.0 7.3
7.6 9.1
9.1 10.9
4:3 aspect ratio
= 0.6 × SD
= 0.8 × SD
= 1.7263 × SD - 0.025
4:3 aspect ratio
= 0.6 × SD
= 0.8 × SD
= 1.7202 × SD - 0.02367
4:3 aspect ratio
= 0.6 × SD
= 0.8 × SD
= 1.4386 × SD - 0.025
4:3 aspect ratio
= 0.6 × SD
= 0.8 × SD
= 1.4335 × SD - 0.02367
Minimum
distance
(LW)
0.065 1.0
0.087 1.3
0.109 1.6
0.131 2.0
0.152 2.3
0.174 2.6
0.196 3.0
0.218 3.3
0.261 3.9
0.327 4.9
0.435 6.6
0.544 8.2
0.653 9.9
16:9 aspect ratio
= 0.490 × SD
= 0.872 × SD
= 1.3045 × SD - 0.025
= 1.5673 × SD - 0.025
16:9 aspect ratio
= 0.490 × SD
= 0.872 × SD
= 1.3008 × SD - 0.02327
= 1.5615 × SD - 0.02367
= 0.490 × SD
= 0.872 × SD
= 1.3045 × SD - 0.025
= 1.5673 × SD - 0.025
= 0.490 × SD
= 0.872 × SD
= 1.3008 × SD - 0.02327
= 1.5615 × SD - 0.02367
16:9 aspect ratio
Maximum
distance
Height position (H)
(LT)
1.2 0.008
1.6 0.011
2.0 0.014
2.4 0.017
2.8 0.019
3.1 0.022
3.5 0.025
3.9 0.028
4.7 0.033
5.9 0.041
7.9 0.054
9.9 0.068
11.9 0.082
16:10 aspect ratio
= 0.530 × SD
= 0.848 × SD
= 1.2692 × SD - 0.025
= 1.5249 × SD - 0.025
16:10 aspect ratio
= 0.530 × SD
= 0.848 × SD
= 1.2660 × SD - 0.02327
= 1.5195 × SD - 0.02367
16:9 aspect ratio
16:9 aspect ratio