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
inches
Zoom Lenses
inches
inches
1.29-1.79:1
1.73-2.27-1
inches
inches
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
inches
Zoom Lenses
inches
inches
1.29-1.79:1
1.73-2.27-1
inches
inches
