Panasonic PT-VW350 Operating Instructions Manual page 28

For PT-VX420
All measurements below are approximate and may differ slightly from the actual measurements. (Unit: m)
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
Any other projection distance can be obtained according to the screen dimensions (m) by using the following calculations.
The calculated distance may contain a certain 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-VW350
Screen height (SH)
Screen width (SW)
Minimum distance (LW)
Maximum distance (LT)
For PT-VX420
Screen height (SH)
Screen width (SW)
Minimum distance (LW)
Maximum distance (LT)
28 - ENGLISH
Chapter 2 Getting Started - Setting up
For 4:3 aspect ratio
Minimum Maximum
distance distance
Height position (H)
(LW) (LT)
0.69 1.14
0.94 1.54
1.17 1.92
1.41 2.30
1.65 2.70
1.89 3.08
2.14 3.48
2.37 3.87
2.86 4.65
3.58 5.81
4.78 7.76
5.98 9.70
7.18 11.65
For 4:3 aspect ratio
= 0.6 × SD(m)
= 0.8 × SD(m)
= 1.1363 × SD(m) - 0.0290
= 1.8422 × SD(m) - 0.0292
For 4:3 aspect ratio
= 0.6 × SD(m)
= 0.8 × SD(m)
= 0.9461 × SD(m) - 0.0295
= 1.5324 × SD(m) - 0.0272
Minimum
distance
(LW)
0.046 0.75
0.061 1.02
0.076 1.28
0.091 1.54
0.107 1.81
0.122 2.06
0.137 2.33
0.152 2.59
0.183 3.11
0.229 3.90
0.305 5.21
0.381 6.52
0.457 7.82
For 16:9 aspect ratio
= 0.490 × SD(m)
= 0.872 × SD(m)
= 1.0316 × SD(m) - 0.0290
= 1.6725 × SD(m) - 0.0292
= 0.490 × SD(m)
= 0.872 × SD(m)
= 1.0307 × SD(m) - 0.0295
= 1.6696 × SD(m) - 0.0272
For 16:9 aspect ratio
Maximum
distance
Height position (H)
(LT)
1.24 -0.012
1.68 -0.017
2.09 -0.021
2.51 -0.025
2.94 -0.029
3.36 -0.033
3.80 -0.037
4.21 -0.041
5.07 -0.050
6.33 -0.062
8.45 -0.083
10.57 -0.104
12.70 -0.124
For 16:10 aspect ratio
= 0.530 × SD(m)
= 0.848 × SD(m)
= 1.0037 × SD(m) - 0.0290
= 1.6273 × SD(m) - 0.0292
For 16:9 aspect ratio