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 3 of 13
Formulas: 16:10 Aspect Ratio (PX700W
—WXGA)
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
= 0.812W
– 1.961
W = Image Width
W = H x 16/10
NP17ZL:
C
(Wide) = 1.346W
– 2.201 ------
C
(Tele) = 1.917W
– 2.008
H = Image Height (size) H = W x 10/16
NP18ZL:
C
(Wide) = 1.852W
– 2.811 ------
C
(Tele) = 2.428W
– 2.772
C = Throw distance
Screen Diagonal = W x 18.868/16
NP19ZL:
C
(Wide) = 2.372W
– 3.307 ------
C
(Tele) = 3.937W
– 3.272
16:9 Screen Formulas
NP20ZL:
C
(Wide) = 3.840W
– 5.587 ------
C
(Tele) = 5.771W
– 5.567
W = H x 16/9
NP21ZL:
C
(Wide) = 5.743W
– 12.213 ------
C
(Tele) = 8.956W
– 12.110
H = W x 9/16
NP31ZL:
C
(Wide) = 0.812W
– 2.099 ------
C
(Tele) = 1.017W
– 1.992
Screen Diagonal = W x 18.358/16
Distance Chart for popular 16:10 Screens (WXGA)
Distance Chart using 16:10 native projector with 16:9 Image (720p)
Rear Lens
NP16FL
Diagonal Width(W) Height (H)
0.76:1
inches
inches
inches
inches
40
34
21
25.32
25.2 - 32.2
40.8 - 62.4
59.4 - 78.8
76.4
129.0
123.4
188.3
180.8
288.8
60
51
32
39.61
39.5 - 50.1
63.4 - 96.1
92.0 - 121.5
118.1 - 198.3
191.0
289.9
281.8
446.4
68
58
36
44.81
44.7 - 56.6
71.6 - 108.4
103.9 - 137.1
133.3 - 223.5
215.6
326.8
318.6
503.8
72
61
38
47.41
47.3 - 59.8
75.7 - 114.5
109.8 - 144.9
140.9 - 236.1
227.9
345.3
337.0
532.4
85
72
45
56.50
56.4 - 71.2
90.0 - 136.0
130.5 - 172.0
167.5 - 280.2
270.9 - 409.9
401.3 - 632.7
108
92
57.5
72.74
72.6 - 91.6
115.7 - 174.4
167.6 - 220.6
214.9 - 358.9
347.7 - 525.4
516.1 - 811.8
113
96
60
75.99
75.9 - 95.6
120.8 - 182.0
175.0 - 230.3
224.4 - 374.7
363.1 - 548.4
539.1 - 847.7
130
110
69
87.68
87.5 - 110.3
139.2 - 209.6
201.6 - 265.3
258.6 - 431.4
418.3 - 631.6
621.8 - 976.6
137
116
72.5
92.23
92.1 - 116.0
146.4 - 220.4
212.0 - 278.9
271.8 - 453.4
439.9 - 663.9
654.0 - 1026.8
164
139
87
111.07
110.9 - 139.6
176.1 - 264.8
255.0 - 335.2
326.9 - 544.8
528.9 - 797.8
787.2 - 1234.6
189
160
100
127.96
127.8 - 160.7
202.8 - 304.7
293.5 - 385.7
376.2 - 626.6
608.8 - 917.8
906.7 - 1420.9
208
176
110
140.95
140.8 - 177.0
223.3 - 335.4
323.1 - 424.6
414.2 - 689.6
670.3 - 1010.1
998.6 - 1564.1
226
192
120
153.94
153.8 - 193.3
243.8 - 366.1
352.8 - 463.4
452.1 - 752.6
731.7 - 1102.5 1090.4 - 1707.4
270
229
143
183.82
183.7 - 230.7
290.9 - 436.6
420.9 - 552.8
539.4 - 897.5
873.0 - 1314.8 1301.8 - 2037.0
NP21ZL
5.30-8.30:1
5.30-8.30:1
Zoom Lenses
NP20ZL
3.60-5.40:1
5.30-8.30:1
inches
inches
0.75-0.93:1
1.29-1.79:1
inches
inches
Screen Size (16:10)
2.22-3.67:1
NP31ZL
NP17ZL
NP18ZL
NP19ZL
1.73-2.27-1
Rear Lens
NP16FL
Diagonal Width(W) Height (H)
0.76:1
inches
inches
inches
inches
39
34
19
25.65
25.5 - 32.6
43.5 -
60.2 - 79.8
77.3 - 130.6
125.0 - 190.6
183.0 - 290.4
59
51
29
39.45
39.3 - 49.9
66.4 - 73.4
91.6 - 121.1
117.7 - 197.5
190.3 - 288.8
280.7 - 441.6
67
58
33
45.14
45.0 - 57.0
75.8 - 84.3
104.6 - 138.1
134.3 - 225.1
217.1 - 329.2
320.9 - 503.9
70
61
34
47.57
47.4 - 60.0
79.9 - 88.9
110.2 - 145.3
141.4 - 236.9
228.7 - 346.5
338.1 - 530.5
83
72
41
56.50
56.4 - 71.2
94.7 - 106.0
130.5 - 172.0
167.5 - 280.2
270.9 - 409.9
401.3 - 628.4
106
92
52
72.74
72.6 - 91.6
121.6 - 137.2
167.6 - 220.6
214.9 - 358.9
347.7 - 525.4
516.1 - 806.3
110
96
54
75.99
75.9 - 95.6
127.0 - 143.4
175.0 - 230.3
224.4 - 374.7
363.1 - 548.4
539.1 - 841.9
126
110
62
87.36
87.2 - 109.9
145.8 - 165.2
200.9 - 264.3
257.6 - 429.8
416.8 - 629.2
619.5 - 966.5
133
116
65
92.23
92.1 - 116.0
153.9 - 174.5
212.0 - 278.9
271.8 - 453.4
439.9 - 663.9
654.0 - 1019.8
159
139
78
110.91
110.8 - 139.4
184.9 - 210.3
254.6 - 334.7
326.4 - 544.0
528.2 - 796.6
786.1 - 1224.4
184
160
90
127.96
127.8 - 160.7
213.1 - 243.0
293.5 - 385.7
376.2 - 626.6
608.8 - 917.8
906.7 - 1411.3
202
176
99
140.95
140.8 - 177.0
234.7 - 267.9
323.1 - 424.6
414.2 - 689.6
670.3 - 1010.1
998.6 - 1553.6
220
192
108
153.94
153.8 - 193.3
256.2 - 292.8
352.8 - 463.4
452.1 - 752.6
731.7 - 1102.5 1090.4 - 1695.9
263
229
129
183.99
183.8 - 230.9
306.0 - 350.4
421.3 - 553.2
539.9 - 898.3
873.8 - 1316.0 1302.9 - 2025.1
1.29-1.79:1
inches
inches
Screen Size (16:9)
2.22-3.67:1
NP31ZL
NP17ZL
NP18ZL
NP19ZL
1.73-2.27-1
NP21ZL
5.30-8.30:1
inches
Zoom Lenses
NP20ZL
3.60-5.40:1
inches
inches
inches
0.75-0.93:1