Panasonic PT-TW380

30 - ENGLISH
Projection distance
A ±5% error in listed projection distances may occur.
When [SCREEN ADJUSTMENT] is used, distance is corrected to become smaller than the specied image size.
For PT-TW380
(Unit: m)
Projection size 16:10 aspect ratio 16:9 aspect ratio 4:3 aspect ratio
Screen
diagonal (SD)
Projection
distance (L)
Height position
(H)
Projection
distance (L)
Height position
(H)
Projection
distance (L)
Height position
(H)
1.27 (50") 0.48 0.108 0.50 0.145 0.55 0.122
1.52 (60") 0.59 0.129 0.60 0.174 0.67 0.146
1.78 (70") 0.69 0.151 0.71 0.203 0.79 0.171
2.03 (80") 0.80 0.172 0.82 0.232 0.91 0.195
2.29 (90") 0.90 0.194 0.92 0.262 1.02 0.219
2.54 (100") 1.00 0.215 1.03 0.291 1.14 0.244
For PT-TX440 and PT-TX350
(Unit: m)
Projection size 4:3 aspect ratio 16:9 aspect ratio 16:10 aspect ratio
Screen
diagonal (SD)
Projection
distance (L)
Height position
(H)
Projection
distance (L)
Height position
(H)
Projection
distance (L)
Height position
(H)
1.27 (50") 0.46 0.038 0.50 0.145 0.48 0.108
1.52 (60") 0.55 0.046 0.60 0.174 0.59 0.129
1.78 (70") 0.65 0.053 0.71 0.203 0.69 0.151
2.03 (80") 0.75 0.061 0.82 0.232 0.80 0.172
2.29 (90") 0.85 0.069 0.92 0.262 0.90 0.194
2.54 (100") 0.94 0.076 1.03 0.291 1.00 0.215
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 formulas is m. (Values obtained by the following calculation formulas 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-TW380
16:10 aspect ratio 16:9 aspect ratio 4:3 aspect ratio
Screen height (SH)
= 0.530 × SD = 0.490 × SD = 0.6 × SD
Screen width (SW)
= 0.848 × SD = 0.872 × SD = 0.8 × SD
Projection distance (L)
= 0.4085 × SD - 0.0339 = 0.4188 × SD - 0.0339 = 0.4625 × SD - 0.0339
For PT-TX440 and PT-TX350
4:3 aspect ratio 16:9 aspect ratio 16:10 aspect ratio
Screen height (SH)
= 0.6 × SD = 0.490 × SD = 0.530 × SD
Screen width (SW)
= 0.8 × SD = 0.872 × SD = 0.848 × SD
Projection distance (L)
= 0.3846 × SD - 0.0339 = 0.4188 × SD - 0.0339 = 0.4085 × SD - 0.0339
Chapter 2 Getting Started - Setting up