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NEC Display Solutions of America, Inc.
PX700W/PX750U/PX800X Installation Guide
Desktop and Ceiling Mount Rev 1.4
www.necdisplay.com PX700W/PX750U/PX800X Page 5 of 13
Formulas: 4:3 Aspect Ratio (PX800X—XGA)
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: 4:3 Screen Formulas
NP06FL: C = 0.808W – 1.644 W = Image Width W = H x 4/3
NP07ZL: C(Wide) = 1.361W – 1.833 ------ C(Tele) = 1.831W – 1.800 H = Image Height (size) H = W x 3/4
NP08ZL: C(Wide) = 1.823W – 2.524 ------ C(Tele) = 2.403W – 2.447 C = Throw distance Screen Diagonal = W x 5/4
NP09ZL: C(Wide) = 2.298W – 4.133 ------ C(Tele) = 4.579W – 4.226
NP10ZL: C(Wide) = 4.516W – 5.296 ------ C(Tele) = 8.514W – 5.512
NP31ZL: C(Wide) = 0.802W – 1.811 ------ C(Tele) = 1.004W – 1.713
Distance Chart for popular 4:3 Screens (XGA)
Projection Formulas:
NP16FL: C = 0.822W – 1.866
NP17ZL: C(Wide) = 1.358W – 2.094 ------ C(Tele) = 1.934W – 1.913
NP18ZL: C(Wide) = 1.828W – 2.681 ------ C(Tele) = 2.397W – 2.642
NP19ZL: C(Wide) = 2.343W – 3.154 ------ C(Tele) = 3.883W – 3.118
NP20ZL: C(Wide) = 3.789W – 5.323 ------ C(Tele) = 5.689W – 5.299
NP21ZL: C(Wide) = 5.664W – 11.638 ------ C(Tele) = 8.834W – 11.535
NP31ZL: C(Wide) = 0.802W – 1.811 ------ C(Tele) = 1.004W – 1.713
Rear Lens
NP06FL
Diagonal
Width(W)
Height (H) 0.77:1
inches inches inches inches
40 32 24 24.2 23.9 - 30.4 41.7 - 56.8 55.8 - 74.4 69.4 - 142.3 139.2 - 266.9
60 48 36 37.1 36.7 - 46.5 63.5 - 86.1 85.0 - 112.9 106.2 - 215.6 211.5 - 403.2
67 54 40.2 41.7 41.2 - 52.1 71.1 - 96.3 95.2 - 126.4 119.0 - 241.2 236.8 - 450.8
72 58 43.2 44.9 44.4 - 56.1 76.6 - 103.7 102.5 - 136.0 128.2 - 259.5 254.8 - 484.9
84 67 50.4 52.7 52.1 - 65.8 89.6 - 121.2 120.0 - 159.0 150.3 - 303.5 298.2 - 566.6
90 72 54 56.5 55.9 - 70.6 96.2 - 130.0 128.7 - 170.6 161.3 - 325.5 319.9 - 607.5
100 80 60 63.0 62.3 - 78.6 107.0 - 144.7 143.3 - 189.8 179.7 - 362.1 356.0 - 675.6
120 96 72 75.9 75.2 - 94.7 128.8 - 174.0 172.5 - 228.2 216.5 - 435.4 428.2 - 811.8
150 120 90 95.3 94.4 - 118.8 161.5 - 217.9 216.2 - 285.9 271.6 - 545.3 536.6 - 1016.2
180 144 108 114.7 113.7 - 142.9 194.2 - 261.9 260.0 - 343.6 326.8 - 655.2 645.0 - 1220.5
210 168 126 134.1 132.9 - 167.0 226.8 - 305.8 303.7 - 401.3 381.9 - 765.0 753.4 - 1424.8
240 192 144 153.5 152.2 - 191.1 259.5 - 349.8 347.5 - 458.9 437.1 - 874.9 861.8 - 1629.2
270 229 143 183.2 181.7 - 228.0 309.6 - 417.1 414.6 - 547.4 521.6 - 1043.4 1028.0 - 1942.5
NP10ZL
4.43-8.30:1
inches
Zoom Lenses
inches
inches
0.75-0.93:1
1.33-1.79:1
inches
inches
Screen Size (4:3)
2.22-4.43:1
NP31ZL
NP07ZL
NP08ZL
NP09ZL
1.78-2.35-1
Rear Lens
NP16FL
Diagonal
Width(W)
Height (H) 0.76:1
inches inches inches inches
40 32 24 24.4 23.9 - 30.4 41.4 - 60.0 55.8 74.1 68.6 121.1 115.9 176.7 169.6 271.2
60 48 36 37.6 36.7 - 46.5 63.1 - 90.9 85.1 - 112.4 104.5 183.3 176.5 267.8 260.2 412.5
67 54 40.2 42.2 41.2 - 52.1 70.7 - 101.7 95.3 - 125.8 117.1 205.0 197.8 299.6 292.0 462.0
72 58 43.2 45.5 44.4 - 56.1 76.1 - 109.5 102.6 - 135.4 126.0 220.5 212.9 322.4 314.6 497.3
84 67 50.4 53.4 52.1 - 65.8 89.2 - 128.1 120.2 - 158.4 147.6 - 257.8 249.3 - 377.0 369.0 - 582.1
90 72 54 57.3 55.9 - 70.6 95.7 - 137.3 128.9 - 169.9 158.3 - 276.5 267.5 - 404.3 396.2 - 624.5
100 80 60 63.9 62.3 - 78.6 106.5 - 152.8 143.6 - 189.1 176.3 - 307.5 297.8 - 449.8 441.5 - 695.2
120 96 72 77.0 75.2 - 94.7 128.3 - 183.8 172.8 - 227.5 212.2 - 369.7 358.4 - 540.8 532.1 - 836.5
150 120 90 96.8 94.4 - 118.8 160.9 - 230.2 216.7 - 285.0 266.0 - 462.8 449.4 - 677.4 668.0 - 1048.5
180 144 108 116.5 113.7 - 142.9 193.5 - 276.6 260.6 - 342.5 319.8 - 556.0 540.3 - 813.9 804.0 - 1260.6
210 168 126 136.2 132.9 - 167.0 226.1 - 323.0 304.4 - 400.1 373.7 - 649.2 631.2 - 950.5 939.9 - 1472.6
240 192 144 156.0 152.2 - 191.1 258.6 - 369.4 348.3 - 457.6 427.5 - 742.4 722.2 - 1087.0 813.9 - 1684.6
270 229 143 179.82 181.7 - 228.0 308.6 - 440.6 415.6 - 545.8 510.0 - 885.3 861.6 - 1296.3 808.2 - 2009.7
0.75-0.93:1
1.29-1.79:1
inches
inches
5.30-8.30:1
NP20ZL
3.60-5.40:1
inches
inches
inches
inches
Screen Size (4:3)
2.22-3.67:1
NP31ZL
NP17ZL
NP18ZL
NP19ZL
1.73-2.27-1
Zoom Lenses
NP21ZL