Appendix D: Throw Distance
013-100199-04
D-21
2.58 - 4.15
Zoom
Image
Diagonal
Image Width
(W)
Throw Distance
(TD)
MINIMUM ZOOM
Inch
cm Inch cm Inch cm
Throw Distance Formula
161.7
410.7 140.9 358 357.9 909.1
TD = 2.459 x W + 11.33
162.6
413.0 141.7 360 359.8 914.0
Where W = image width
(inch)
169.4
430.3 147.6 375 374.4 950.9
176.2
447.5 153.5 390 388.9 987.8
182.9
464.7 159.4 405 403.4 1024.7
189.7
481.9 165.4 420 417.9 1061.6
196.5
499.1 171.3 435 432.5 1098.4
203.3
516.3 177.2 450 447.0 1135.3
NOTE:
The TD formula is provided in
inches, but the chart shows values in cm
and inches for easy reference. Make sure
you are using the correct unit of
measurement when calculating throw
distance.
210.0
533.5 183.1 465 461.5 1172.2
216.8
550.7 189.0 480 476.0 1209.1
223.6
567.9 194.9 495 490.5 1246.0
230.4
585.1 200.8 510 505.1 1282.9
237.1
602.4 206.7 525 519.6 1319.8
243.9
619.6 212.6 540 534.1 1356.6
250.7
636.8 218.5 555 548.6 1393.5
257.5
654.0 224.4 570 563.2 1430.4
264.3
671.2 230.3 585 577.7 1467.3
271.0
688.4 236.2 600 592.2 1504.2
277.8
705.6 242.1 615 606.7 1541.1
284.6
722.8 248.0 630 621.2 1577.9
291.4
740.0 253.9 645 635.8 1614.8
298.1
757.2 259.8 660 650.3 1651.7
304.9
774.5 265.7 675 664.8 1688.6
311.7
791.7 271.7 690 679.3 1725.5
318.5
808.9 277.6 705 693.8 1762.4
325.2
826.1 283.5 720 708.4 1799.3
332.0
843.3 289.4 735 722.9 1836.1
338.8
860.5 295.3 750 737.4 1873.0
345.6
877.7 301.2 765 751.9 1909.9
352.3
894.9 307.1 780 766.5 1946.8
359.1
912.1 313.0 795 781.0 1983.7
365.9
929.3 318.9 810 795.5 2020.6
372.7
946.6 324.8 825 810.0 2057.5
379.4
963.8 330.7 840 824.5 2094.3
386.2
981.0 336.6 855 839.1 2131.2
393.0
998.2 342.5 870 853.6 2168.1
399.8
1015.4 348.4 885 868.1 2205.0
406.5
1032.6 354.3 900 882.6 2241.9
413.3
1049.8 360.2 915 897.2 2278.8
420.1
1067.0 366.1 930 911.7 2315.6
426.9
1084.2 372.0 945 926.2 2352.5
433.6
1101.5 378.0 960 940.7 2389.4
440.4
1118.7 383.9 975 955.2 2426.3
447.2
1135.9 389.8 990 969.8 2463.2
454.0
1153.1 395.7 1005 984.3 2500.1
460.7
1170.3 401.6 1020 998.8 2537.0
467.5
1187.5 407.5 1035 1013.3 2573.8
474.3
1204.7 413.4 1050 1027.8 2610.7
481.1
1221.9 419.3 1065 1042.4 2647.6
487.8
1239.1 425.2 1080 1056.9 2684.5
494.6
1256.3 431.1 1095 1071.4 2721.4
501.4
1273.6 437.0 1110 1085.9 2758.3
508.2
1290.8 442.9 1125 1100.5 2795.2
515.0
1308.0 448.8 1140 1115.0 2832.0
Содержание 1920-DX
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