Panasonic PT-TX340 Operating Instructions Manual page 29

For PT-TX430 and PT-TX340
Projection size
Screen diagonal (SD)
1.27 (50")
1.52 (60")
1.78 (70")
2.03 (80")
2.29 (90")
2.54 (100")
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-TW370
Screen height (SH)
Screen width (SW)
Projection distance (L)
For PT-TX430 and PT-TX340
Screen height (SH)
Screen width (SW)
Projection distance (L)
Chapter 2 Getting Started - Setting up
4:3 aspect ratio
Projection distance
(L)
0.46
0.55
0.65
0.75
0.85
0.94
16:10 aspect ratio
= 0.530 × SD
= 0.848 × SD
= 0.4085 × SD - 0.0339
4:3 aspect ratio
= 0.6 × SD
= 0.8 × SD
= 0.3846 × SD - 0.0339
Projection distance
Height position
(H)
0.038
0.046
0.053
0.061
0.069
0.076
16:9 aspect ratio
= 0.490 × SD
= 0.872 × SD
= 0.4188 × SD - 0.0339
= 0.490 × SD
= 0.872 × SD
= 0.4188 × SD - 0.0339
16:9 aspect ratio
Height position
(H)
(L)
0.50 0.145
0.60 0.174
0.71 0.203
0.82 0.232
0.92 0.262
1.03 0.291
4:3 aspect ratio
= 0.6 × SD
= 0.8 × SD
= 0.4625 × SD - 0.0339
16:9 aspect ratio
ENGLISH - 29
(Unit: m)