NEC Display Solutions of America, Inc.
PX700W/PX750U/PX800X Installation Guide
Desktop and Ceiling Mount Rev 1.0
www.necdisplay.com PX700W/PX750U/PX800X Page 3 of 12
Formulas: 16:10 Aspect Ratio (PX750U—WUXGA)
The Projection Formulas use the image width for calculation. Image width is the same for all aspect ratios, only vertical image size
varies. For proper projector placement, determine the image width for a desired screen size. Use the Screen Formulas below to
calculate all screen dimensions. Plug in the image width for “W” in the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2 and 3:
Projection Formulas: Definitions: 16:10 Screen Formulas
NP16FL: C = 0.794W – 1.85 W = Image Width W = H x 16/10
NP17ZL: C(Wide) = 1.281W – 2.094 ------ C(Tele) = 1.825W – 1.913 H = Image Height (size) H = W x 10/16
NP18ZL: C(Wide) = 1.764W – 2.677 ------ C(Tele) = 2.313W – 2.638 C = Throw distance Screen Diagonal = W x 18.868/16
NP19ZL: C(Wide) = 2.261W – 3.150 ------ C(Tele) = 3.747W – 3.114 16:9 Screen Formulas
NP20ZL: C(Wide) = 3.654W – 5.319 ------ C(Tele) = 5.492W – 5.299 W = H x 16/9
NP21ZL: C(Wide) = 5.469W – 11.626 ------ C(Tele) = 8.527W – 11.531
H = W x 9/16
Screen Diagonal = W x 18.358/16
Distance Chart for popular 16:10 Screens (WUXGA)
Rear Lens
NP16FL
Diagonal Width(W) Height (H) 0.76:1
inches inches inches inches
40 34 21 24.83 40.9 - 59.4 56.6 - 75.1 72.8 122.8 117.5 179.2 212.3 275.0
60 51 32 38.80 63.5 - 91.5 87.6 - 115.8 112.6 - 188.7 181.8 275.9 335.6 425.1
67 58 36 43.88 71.7 - 103.2 98.9 - 130.6 127.1 - 212.7 205.2 311.0 380.5 479.6
72 61 38 46.43 75.8 - 109.0 104.6 - 138.0 134.3 - 224.7 216.8 328.6 402.9 506.9
84 72 45 55.32 90.1 - 129.5 124.3 - 163.9 159.6 - 266.7 257.8 - 390.1 481.3 - 602.4
90 77 48 59.13 96.3 - 138.2 132.8 - 175.0 170.5 - 284.7 275.3 - 416.5 515.0 - 643.3
100 85 53 65.48 106.5 - 152.8 146.9 - 193.5 188.6 - 314.6 304.5 - 460.4 571.0 - 711.6
120 102 64 79.46 129.1 - 185.0 178.0 - 234.2 228.4 - 380.6 368.9 - 557.1 694.3 - 861.6
150 126 79 98.51 159.8 - 228.8 220.3 - 289.7 282.6 - 470.5 456.5 - 688.9 862.5 - 1066.3
180 152 95 118.84 192.6 - 275.5 265.5 - 348.9 340.5 - 566.4 550.1 - 829.5 1041.8 - 1284.6
210 178 111 139.16 225.4 - 322.2 310.6 - 408.2 398.4 - 662.4 643.6 - 970.1 1221.2 - 1502.9
240 203 127 159.49 258.2 - 368.9 355.8 - 467.4 456.3 - 758.3 737.2 - 1110.7 1400.5 - 1721.2
270 229 143 179.82 291.0 - 415.6 400.9 - 526.6 514.2 - 854.2 830.7 - 1251.3 1579.8 - 1939.4
300 254 159 200.14 323.8 - 462.4 446.1 - 585.8 572.0 - 950.1 924.3 - 1391.9 1759.2 - 2157.7
Screen Size (16:10)
3.60-5.40:1
NP17ZL NP18ZL NP19ZL NP20ZL
2.22-3.67:1
NP21ZL
5.30-8.30:1
nc
es
Zoom Lenses
nc
es
nc
es
1.29-1.79:1 1.73-2.27-1
nc
es
nc
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Distance Chart for popular 16:9 Screens (1080p)
Rear Lens
NP16FL
Diagonal Width(W) Height (H) 0.76:1
inches inches inches inches
43 37 21 27.79 45.7 - 66.2 63.2 - 83.7 81.3 136.8 131.1 199.7 238.5 306.8
65 57 32 43.32 70.8 - 101.9 97.7 - 128.9 125.5 - 210.0 202.6 307.1 375.5 473.6
73 64 36 48.97 79.9 - 114.9 110.2 - 145.4 141.6 - 236.7 228.5 346.2 425.3 534.2
78 68 38 51.79 84.4 - 121.4 116.5 - 153.6 149.6 - 250.0 241.5 365.7 450.2 564.5
92 80 45 61.67 100.4 - 144.1 138.4 - 182.4 177.7 - 296.6 287.0 - 434.1 537.4 - 670.6
98 85 48 65.90 107.2 - 153.8 147.9 - 194.7 189.8 - 316.6 306.5 - 463.4 574.7 - 716.1
108 94 53 72.96 118.6 - 170.0 163.5 - 215.3 209.9 - 349.9 339.0 - 512.2 637.0 - 791.9
131 114 64 88.49 143.7 - 205.7 198.0 - 260.5 254.1 - 423.2 410.4 - 619.6 774.0 - 958.7
161 140 79 109.66 177.8 - 254.4 245.1 - 322.2 314.4 - 523.1 507.9 - 766.0 960.8 - 1186.0
194 169 95 132.25 214.3 - 306.3 295.2 - 388.0 378.7 - 629.7 611.8 - 922.2 1160.1 - 1428.6
226 197 111 154.83 250.7 - 358.2 345.4 - 453.8 443.0 - 736.3 715.7 - 1078.5 1359.4 - 1671.1
259 226 127 177.42 287.1 - 410.1 395.6 - 519.6 507.3 - 842.9 819.7 - 1234.7 1558.7 - 1913.7
292 254 143 200.00 323.6 - 462.0 445.8 - 585.4 571.6 - 949.5 923.6 - 1390.9 1757.9 - 2156.2
324 283 159 222.59 360.0 - 514.0 495.9 - 651.2 636.0 - 1056.0 1027.5 - 1547.1 1957.2 - 2398.8
Screen Size (16:9)
3.60-5.40:1
NP17ZL NP18ZL NP19ZL NP20ZL
2.22-3.67:1
NP21ZL
5.30-8.30:1
nc
es
Zoom Lenses
nc
es
nc
es
1.29-1.79:1 1.73-2.27-1
nc
es
nc
es