Throw Distance And Screen Size - NEC VT490 User Manual

Throw Distance and Screen Size

The following shows the proper relative positions of the projector and screen. Refer to the table to determine the
position of installation.
Distance Chart
Projector bottom
VT695
Screen Size
Diagonal Width
inch mm inch mm
21 533 17 427
25 635 20 508
30 762 24 610
40 1016 32 813
60 1524 48 1219
72 1829 58 1463
80 2032 64 1626
84 2134 67 1707
90 2286 72 1829
100 2540 80 2032
120 3048 96 2438
150 3810 120 3048
180 4572 144 3658
200 5080 160 4064
210 5334 168 4267
240 6096 192 4877
270 6858 216 5486
300 7620 240 6096
VT595/VT590/VT490/VT59
Screen Size
Diagonal Width
inch mm inch mm
21 533 17 427
25 635 20 508
30 762 24 610
40 1016 32 813
60 1524 48 1219
72 1829 58 1463
80 2032 64 1626
84 2134 67 1707
90 2286 72 1829
100 2540 80 2032
120 3048 96 2438
150 3810 120 3048
180 4572 144 3658
200 5080 160 4064
210 5334 168 4267
240 6096 192 4877
270 6858 216 5486
300 7620 240 6096
C
Screen center
Lens center
α
B
Height
inch mm inch
13 320 4
15 381 5
18 457 6
24 610 8
36 914 12
43 1097 15
48 1219 17
50 1280 17
54 1372 19
60 1524 21
72 1829 25
90 2286 31
108 2743 37
120 3048 41
126 3200 43
144 3658 50
162 4115 56
180 4572 62
B
Height
inch mm inch
13 320 4
15 381 5
18 457 6
24 610 9
36 914 13
43 1097 15
48 1219 17
50 1280 18
54 1372 19
60 1524 21
72 1829 26
90 2286 32
108 2743 38
120 3048 43
126 3200 45
144 3658 51
162 4115 57
180 4572 64
B = Vertical distance between lens center and
C = Throw distance
D = Vertical distance between lens center and
α = Throw angle
B
NOTE: Distances may vary +/-5%.
D
Screen bottom
C
wide
mm inch mm -
110 - - -
130 28 720 -
160 34 870 -
210 46 1170 -
310 70 1770 -
380 84 2130 -
420 93 2370 -
440 98 2490 -
470 105 2670 -
520 117 2970 -
630 141 3570 -
790 176 4470 -
940 211 5370 -
1050 235 5970 -
1100 247 6270 -
1260 282 7170 -
1410 318 8070 -
1570 353 8970 -
C
wide
mm inch mm -
110 - - -
140 29 740 -
160 35 900 -
220 48 1210 -
320 72 1830 -
390 87 2200 -
430 96 2450 -
450 101 2570 -
490 109 2760 -
540 121 3070 -
650 145 3690 -
810 182 4620 -
970 218 5540 -
1080 243 6160 -
1140 255 6470 -
1300 291 7400 -
1460 328 8330 -
1620 365 9260 -
11
2. Installation and Connections
screen center
screen bottom (top of screen for ceiling
application)
D
tele
inch mm inch mm
29 730 -2 -50
34 870 -2 -60
41 1050 -3 -70
56 1410 -4 -100
84 2130 -6 -140
101 2560 -7 -170
112 2850 -8 -190
118 2990 -8 -200
126 3210 -8 -210
141 3570 -9 -240
169 4290 -11 -290
211 5370 -14 -360
254 6450 -17 -430
282 7170 -19 -480
296 7530 -20 -500
339 8610 -23 -570
381 9690 -25 -640
424 10770 -28 -710
D
tele
inch mm inch mm
30 750 -2 -50
35 900 -2 -60
43 1090 -3 -70
57 1460 -3 -90
87 2200 -5 -130
104 2650 -6 -160
116 2940 -7 -180
122 3090 -7 -190
131 3310 -8 -200
145 3690 -9 -220
174 4430 -10 -270
218 5540 -13 -330
262 6660 -16 -400
291 7400 -17 -440
306 7770 -18 -460
350 8890 -21 -530
394 10000 -24 -600
438 11120 -26 -660
α
wide tele
degree - degree
- - 8.6
10.3 - 8.6
10.2 - 8.5
10.1 - 8.4
10.1 - 8.4
10.0 - 8.4
10.0 - 8.4
10.0 - 8.4
10.0 - 8.4
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
9.9 - 8.3
9.9 - 8.3
9.9 - 8.3
α
wide tele
degree - degree
- - 8.6
10.3 - 8.5
10.2 - 8.5
10.1 - 8.4
10.1 - 8.4
10.0 - 8.4
10.0 - 8.4
10.0 - 8.4
10.0 - 8.4
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
10.0 - 8.3
9.9 - 8.3
9.9 - 8.3
9.9 - 8.3