NEC MultiSync VT540JK, Руководство пользователя, Страница: 15 / 40

E–15
H
Screen (inch)
Distance Chart
α
degree 9.01 8.93 8.85 8.82 8.81 8.79 8.78 8.77 8.75 8.74 8.74 8.73 8.72 8.72
β
(=sin
α
) 0.16 0.16 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15
γ
(=cos
α
) 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Screen Size H-Width inch 24 32 48 56 64 72 80 96 120 144 160 192 216 240
4:3 Diagonal inch 30 40 60 70 80 90 100 120 150 180 200 240 270 300
A mm 1171 1575 2384 2789 3193 3598 4002 4811 6025 7238 8047 9666 10879 12093
inch 46 62 94 110 126 142 158 189 237 285 317 381 428 476
C mm 1156 1556 2356 2756 3155 3555 3955 4755 5955 7154 7954 9554 10753 11953
inch 46 61 93 108 124 140 156 187 234 282 313 376 423 471
D mm -15 2 34 50 66 82 98 130 179 227 259 324 372 420
inch -1 0 1 2 3 3 4 5 7 9 10 13 15 17
E mm 246 307 430 491 552 613 674 796 980 1163 1285 1530 1713 1896
inch 10 12 17 19 22 24 27 31 39 46 51 60 67 75
NOTE: Distances may vary +/–5%.
Distance Chart
Throwing Distance Screen Size (inch)
(inch) (m) Wide Tele
45 1.2 30 25
61 1.6 40 33
93 2.4 60 50
108 2.8 70 58
124 3.2 80 67
140 3.6 90 75
156 4.0 100 83
187 4.8 120 100
234 6.0 150 125
282 7.2 180 150
313 8.0 200 167
376 9.6 240 200
423 10.8 270 225
471 12.0 300 250
wide tele
A
C
E
D
α
A: Distance between the
lens and the screen cen-
ter
C: Horizontal throw dis-
tance between screen
surface and the lens
D: Ver tical distance be-
tween projector base
and base of image
E: Ver tical distance be-
tween projector base
and screen center
α
degree 6.28 7.46 7.39 7.37 7.36 7.35 7.34 7.32 7.31 7.30 7.30 7.29 7.29 7.28
β
(=sin
α
) 0.11 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13
γ
(=cos
α
) 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Screen Size H-Width inch 20 32 48 56 64 72 80 96 120 144 160 192 216 240
4:3 Diagonal inch 25 40 60 70 80 90 100 120 150 180 200 240 270 300
A mm 1396 1883 2851 3334 3818 4302 4785 5753 7204 8655 9623 11558 13009 14460
inch 55 74 112 131 150 169 188 226 284 341 379 455 512 569
C mm 1387 1867 2827 3307 3787 4266 4746 5706 7146 8585 9545 11464 12904 14344
inch 55 74 111 130 149 168 187 225 281 338 376 451 508 565
D mm -23 2 34 50 66 82 98 130 179 227 259 324 372 420
inch -1 0 1 2 3 3 4 5 7 9 10 13 15 17
E mm 216 307 430 491 552 613 674 796 980 1163 1285 1530 1713 1896
inch 8 12 17 19 22 24 27 31 39 46 51 60 67 75
Zoom Lens (Wide)
Zoom Lens (Tele)
Throwing Distance (inch)
Screen Siz
e (inch)
300
250
200
150
100
50
0
0 100 200 300 400
300
250
200
150
100
50
0
0 2 4 6 8 10 12
Throwing Distance (m)
Screen Siz
e (inch)
Formulas(mm) Formulas(inch)
"H = Horizontal Screen Width "H = Horizontal Screen Width
A = C/cos
α
A = C/cos
α
C (wide) = 36.8712
×
(diagonal screen size/ 0.92205) – 43.5689 C (wide) = (36.8712
×
(diagonal screen size/0.92205) – 43.5689) / 25.4
C (tele) = C(wide)
×
1.2 C (tele) = C (wide)
×
1.2
D = 1.45
×
M – 62.9 D = 1.45
×
M – 62.9 / 25.4
E = 62.9 + 5.5M E = (62.9 + 5.5M) / 25.4
M = 1.25H / 22.86 M = 1.25H / 0.9
4:3 Diagonal