Table of Contents
Advertisement
Formula for calculating the projection distance per projection lens
To use a projected image size not listed in this manual, check the projected image 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.)
When calculating a projection distance using image size designation (value in inches), multiply the value in inches
by 0.0254 and substitute it into SD in the formula for calculating the projection distance.
r Zoom lens
Projection lens Model No.
Standard zoom lens/
ET-DLE170
ET-DLE020
ET-DLE060
ET-DLE085
ET-DLE105
ET-DLE150
ET-DLE250
ET-DLE350
ET-DLE450
r Fixed-focus Lens (Model No.: ET-DLE055)
Projection lens Model No.
ET-DLE055
r Fixed-focus Lens (Model No.: ET-DLE035)
Projection lens Model No.
ET-DLE035
50 - ENGLISH
Chapter 2 Getting Started — Setting up
Throw ratio
Aspect ratio
1.71 - 2.41:1
16:10
1.72 - 2.41:1
16:9
2.06 - 2.90:1
4:3
0.280 - 0.299:1
16:10
0.280 - 0.299:1
16:9
0.337 - 0.360:1
4:3
0.600 - 0.801:1
16:10
0.600 - 0.802:1
16:9
0.724 - 0.965:1
4:3
0.782 - 0.977:1
16:10
0.783 - 0.977:1
16:9
0.943 - 1.18:1
4:3
0.978 - 1.32:1
16:10
0.979 - 1.32:1
16:9
1.18 - 1.59:1
4:3
1.30 - 1.89:1
16:10
1.30 - 1.89:1
16:9
1.56 - 2.27:1
4:3
2.27 - 3.62:1
16:10
2.27 - 3.62:1
16:9
2.73 - 4.35:1
4:3
3.58 - 5.45:1
16:10
3.58 - 5.45:1
16:9
4.30 - 6.55:1
4:3
5.36 - 8.58:1
16:10
5.36 - 8.58:1
16:9
6.46 - 10.3:1
4:3
Throw ratio
Aspect ratio
0.785:1
16:10
0.786:1
16:9
0.946:1
4:3
Throw ratio
Aspect ratio
0.380:1
16:10
0.380:1
16:9
0.456:1
4:3
Projection distance (L) formula
Min. (LW)
= 1.4906 x SD - 0.0746
= 1.5320 x SD - 0.0746
= 1.6874 x SD - 0.0746
= 0.2438 x SD - 0.0266
= 0.2506 x SD - 0.0266
= 0.2760 x SD - 0.0266
= 0.5354 x SD - 0.0549
= 0.5503 x SD - 0.0549
= 0.6062 x SD - 0.0549
= 0.6865 x SD - 0.0471
= 0.7056 x SD - 0.0471
= 0.7772 x SD - 0.0471
= 0.8543 x SD - 0.0511
= 0.8781 x SD - 0.0511
= 0.9672 x SD - 0.0511
= 1.1259 x SD - 0.0540
= 1.1572 x SD - 0.0540
= 1.2747 x SD - 0.0540
= 1.9665 x SD - 0.0800
= 2.0212 x SD - 0.0800
= 2.2263 x SD - 0.0800
= 3.1000 x SD - 0.1351
= 3.1862 x SD - 0.1351
= 3.5094 x SD - 0.1351
= 4.6931 x SD - 0.3017
= 4.8236 x SD - 0.3017
= 5.3129 x SD - 0.3017
Projection distance (L) formula
= 0.6893 x SD - 0.0476
= 0.7084 x SD - 0.0476
= 0.7803 x SD - 0.0476
Projection distance (L1)
formula
= 0.3205 x SD + 0.0047
= 0.3294 x SD + 0.0047
= 0.3628 x SD + 0.0047
Max. (LT)
= 2.0814 x SD - 0.0725
= 2.1393 x SD - 0.0725
= 2.3563 x SD - 0.0725
= 0.2612 x SD - 0.0279
= 0.2684 x SD - 0.0279
= 0.2957 x SD - 0.0279
= 0.7047 x SD - 0.0518
= 0.7243 x SD - 0.0518
= 0.7978 x SD - 0.0518
= 0.8498 x SD - 0.0442
= 0.8735 x SD - 0.0442
= 0.9621 x SD - 0.0442
= 1.1457 x SD - 0.0472
= 1.1775 x SD - 0.0472
= 1.2970 x SD - 0.0472
= 1.6243 x SD - 0.0498
= 1.6695 x SD - 0.0498
= 1.8388 x SD - 0.0498
= 3.1059 x SD - 0.0792
= 3.1923 x SD - 0.0792
= 3.5161 x SD - 0.0792
= 4.6843 x SD - 0.1346
= 4.8146 x SD - 0.1346
= 5.3030 x SD - 0.1346
= 7.4193 x SD - 0.2991
= 7.6256 x SD - 0.2991
= 8.3992 x SD - 0.2991
Distance (A1) formula from
the projector to the screen
= 0.1977 x SD - 0.0721
= 0.2304 x SD - 0.0721
= 0.2238 x SD - 0.0721
Advertisement
Table of Contents
