Chapter 2
Getting Started — Setting up
48 - ENGLISH
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.
Throw ratio
Aspect ratio
Projection distance (L) formula
Min. (LW)
Max. (LT)
ET-D3LEW200
0.645 - 0.850:1
16:10
= 0.5665 x SD - 0.1001
= 0.7425 x SD - 0.1076
0.646 - 0.851:1
16:9
= 0.5823 x SD - 0.1001
= 0.7632 x SD - 0.1076
0.778 - 1.02:1
4:3
= 0.6414 x SD - 0.1001
= 0.8406 x SD - 0.1076
ET-D3LEW60/ET-D75LE6
0.924 - 1.10:1
16:10
= 0.7979 x SD - 0.0566
= 0.9559 x SD - 0.0736
0.924 - 1.10:1
16:9
= 0.8201 x SD - 0.0566
= 0.9825 x SD - 0.0736
1.12 - 1.32:1
4:3
= 0.9032 x SD - 0.0566
= 1.0822 x SD - 0.0736
ET-D3LEW10
1.26 - 1.72:1
16:10
= 1.0886 x SD - 0.0867
= 1.4876 x SD - 0.1025
1.26 - 1.72:1
16:9
= 1.1188 x SD - 0.0867
= 1.5290 x SD - 0.1025
1.52 - 2.07:1
4:3
= 1.2324 x SD - 0.0867
= 1.6841 x SD - 0.1025
ET-D75LE10
1.30 - 1.67:1
16:10
= 1.1186 x SD - 0.0857
= 1.4458 x SD - 0.1085
1.30 - 1.67:1
16:9
= 1.1497 x SD - 0.0857
= 1.4860 x SD - 0.1085
1.56 - 2.01:1
4:3
= 1.2663 x SD - 0.0857
= 1.6367 x SD - 0.1085
ET-D3LES20/ET-D75LE20
1.67 - 2.41:1
16:10
= 1.4312 x SD - 0.0832
= 2.0795 x SD - 0.1162
1.67 - 2.41:1
16:9
= 1.4709 x SD - 0.0832
= 2.1373 x SD - 0.1162
2.00 - 2.90:1
4:3
= 1.6202 x SD - 0.0832
= 2.3542 x SD - 0.1162
ET-D3LET30
2.40 - 4.66:1
16:10
= 2.0609 x SD - 0.1261
= 4.0084 x SD - 0.1892
2.40 - 4.66:1
16:9
= 2.1182 x SD - 0.1261
= 4.1198 x SD - 0.1892
2.88 - 5.61:1
4:3
= 2.3331 x SD - 0.1261
= 4.5378 x SD - 0.1892
ET-D75LE30
2.40 - 4.66:1
16:10
= 2.0647 x SD - 0.1131
= 4.0041 x SD - 0.1765
2.41 - 4.66:1
16:9
= 2.1221 x SD - 0.1131
= 4.1155 x SD - 0.1765
2.89 - 5.60:1
4:3
= 2.3374 x SD - 0.1131
= 4.5330 x SD - 0.1765
ET-D3LET40
4.61 - 7.41:1
16:10
= 3.9505 x SD - 0.1673
= 6.3330 x SD - 0.1846
4.61 - 7.41:1
16:9
= 4.0601 x SD - 0.1673
= 6.5091 x SD - 0.1846
5.54 - 8.90:1
4:3
= 4.4720 x SD - 0.1673
= 7.1694 x SD - 0.1846
ET-D75LE40
4.62 - 7.38:1
16:10
= 3.9532 x SD - 0.1577
= 6.3027 x SD - 0.1615
4.62 - 7.38:1
16:9
= 4.0631 x SD - 0.1577
= 6.4779 x SD - 0.1615
5.55 - 8.86:1
4:3
= 4.4754 x SD - 0.1577
= 7.1351 x SD - 0.1615
ET-D3LET80/ET-D75LE8
7.34 - 13.8:1
16:10
= 6.3193 x SD - 0.3862
= 11.8400 x SD - 0.3598
7.34 - 13.8:1
16:9
= 6.4950 x SD - 0.3862
= 12.1692 x SD - 0.3598
8.82 - 16.6:1
4:3
= 7.1540 x SD - 0.3862
= 13.4039 x SD - 0.3598
Содержание PT-RZ16K
Страница 58: ...58 ENGLISH Chapter 3 Basic Operations This chapter describes basic operations to start with ...
Страница 198: ...198 ENGLISH Chapter 5 Operations This chapter describes how to use each function ...
Страница 239: ...ENGLISH 239 Chapter 7 Appendix This chapter describes specifications and after sales service for the projector ...