NEC LT240 User Manual page 25

INSTALLATION AND CONNECTIONS
<LT240>
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and bottom of screen
= Throw angle
NOTE: Distances may vary +/-5%.
Diagonal
inch
30
40
60
67
72
80
84
90
100
120
150
180
200
210
240
261
270
300
350
400
450
500
Diagonal
mm
762
1016
1524
1702
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6629
6858
7620
8890
10160
11430
12700
Screen Size
Width Height
inch inch
18
24
32 24
48 36
54 40
58 43
64 48
67 50
72 54
80 60
96 72
120 90
144 108
160 120
168 126
192 144
209 157
216 162
240 180
280 210
320 240
360 270
400 300
Screen Size
Width Height
mm mm
610 457
813 610
1219 914
1361 1021
1463 1097
1626 1219
1707 1280
1829 1372
2032 1524
2438 1829
3048 2286
3658 2743
4064 3048
4267 3200
4877 3658
5304 3978
5486 4115
6096 4572
7112 5334
8128 6096
9144 6858
10160 7620
Setting Up the Screen and theProjector
B C
Wide – Tele
inch inch
12.6 35.7 - 43.4
16.8 48.2 - 58.4
25.2 73.2 - 88.5
28.1 81.9 - 99.0
30.2 88.1 - 106.5
33.6 98.1 - 118.6
35.3 103.1 - 124.6
37.8 110.6 - 133.6
42.0 123.1 - 148.6
50.4 148.1 - 178.7
63.0 185.5 - 223.8
75.6 223.0 - 268.9
84.0 248.0 - 298.9
88.2 260.5 - 314.0
100.8 297.9 - 359.1
109.7 324.1 - 390.6
113.4 335.4 - 404.1
126.1 372.8 - 449.2
147.1 435.3 - 524.4
168.1 497.7 - 599.6
189.1 560.1 - 674.7
210.1 622.5 - 749.9
B C
Wide – Tele
mm mm
320 907 - 1102
426 1224 - 1484
640 1858 - 2248
715 2080 - 2515
768 2239 - 2706
853 2493 - 3011
896 2620 - 3164
960 2810 - 3393
1067 3127 - 3775
1280 3761 - 4538
1601 4713 - 5684
1921 5664 - 6829
2134 6298 - 7593
2241 6615 - 7975
2561 7567 - 9120
2785 8233 - 9922
2881 8518 -10265
3202 9470 -11411
3735 11055 -13320
4269 12641 -15229
4803 14227 -17138
5336 15813 -19046
E-25
D
Wide – Tele
inch degree
3.6 19.4 - 16.2
4.8 19.2 - 16.0
7.2
19.0 - 15.9
8.0 19.0 - 15.9
8.6
18.9 - 15.8
9.6 18.9 - 15.8
10.1 18.9 - 15.8
10.8
18.9 - 15.8
12.0 18.8 - 15.8
14.4 18.8 - 15.8
18.0
18.8 - 15.7
21.6 18.7 - 15.7
24.0 18.7 - 15.7
25.2
18.7 - 15.7
28.8 18.7 - 15.7
31.4
18.7 - 15.7
32.4 18.7 - 15.7
36.1 18.7 - 15.7
42.1 18.7 - 15.7
48.1 18.7 - 15.7
54.1 18.7 - 15.7
60.1
18.6 - 15.7
D
Wide – Tele
mm degree
91 19.4 - 16.2
122 19.2 - 16.0
183 19.0 - 15.9
204 19.0 - 15.9
219
18.9 - 15.8
244 18.9 - 15.8
256
18.9 - 15.8
274 18.9 - 15.8
305 18.8 - 15.8
366 18.8 - 15.8
458 18.8 - 15.7
549 18.7 - 15.7
610
18.7 - 15.7
641 18.7 - 15.7
732
18.7 - 15.7
797 18.7 - 15.7
824 18.7 - 15.7
916 18.7 - 15.7
1068 18.7 - 15.7
1221 18.7 - 15.7
1374
18.7 - 15.7
1526 18.6 - 15.7