NEC Display Solutions of America, Inc.
PA521U/PA571W/PA621X Installation Guide
Desktop and Ceiling Mount
Rev 1.0
www.necdisplay.com
PA521U/ PA571W/PA621X
Page 3 of 14
Formulas: 16:10 Aspect Ratio (PA571W—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:
NP11FL:
C
= 0.812W – 1.346
W = Image Width
W = H x 16/10
NP12ZL:
C
(Wide) = 1.193W – 1.795 ------
C
(Tele) = 1.551W – 1.795
H = Image Height (size) H = W x 10/16
NP13ZL:
C
(Wide) = 1.495W – 1.972 ------
C
(Tele) = 2.985W – 1.972
C = Throw distance
Screen Diagonal = W x 18.868/16
NP14ZL:
C
(Wide) = 2.976W – 4.843 ------
C
(Tele) = 4.763W – 4.843
NP15ZL:
C
(Wide) = 4.708W – 7.630 ------
C
(Tele) = 7.154W – 7.630
NP30ZL:
C(Wide) = 0.808W – 1.587 ------ C(Tele) = 1.054W – 1.587
Distance Chart for popular 16:10 Screens (WXGA)
Rear Lens
NP11FL
Diagonal Width(W) Height (H)
0.8:1
inches
inches
inches
inches
40
34
21
26.3
25.9 - 34.3
38.8 - 50.9
48.9
99.5
96.3
157.1
152.4
235.6
60
51
32
40.1
39.7 - 52.2
59.0 - 77.3
74.3 - 150.3
146.9
238.1
232.5
357.2
67
57
36
44.9
44.5 - 58.5
66.2 - 86.6
83.2 - 168.2
164.8
266.6
260.7
400.1
72
61
38
48.2
47.8 - 62.8
71.0 - 92.8
89.2 - 180.1
176.7
285.7
279.6
428.8
84
71
45
56.3
55.8 - 73.3
82.9 - 108.3
104.2 - 210.0
206.5 - 333.3
326.6 - 500.3
90
76
48
60.4
59.9 - 78.6
88.9 - 116.1
111.6 - 224.9
221.3 - 357.1
350.2 - 536.1
100
85
53
67.7
67.1 - 88.1
99.6 - 130.0
125.1 - 251.8
248.1 - 400.0
392.6 - 600.5
120
102
64
81.5
80.9 - 106.0 119.9 - 156.4
150.5 - 302.5
298.7 - 481.0
472.6 - 722.1
150
127
79
NA
101.1 - 132.3 149.7 - 195.2
187.9 - 377.1
373.1 - 600.1
590.3 - 900.9
180
153
95
NA
122.1 - 159.7 180.7 - 235.5
226.8 - 454.7
450.5 - 723.9
712.7 - 1086.9
210
178
111
NA
142.3 - 186.1 210.6 - 274.3
264.1 - 529.4
524.9 - 843.0
830.4 - 1265.8
240
204
127
NA
163.3 - 213.5 241.6 - 314.6
303.0 - 607.0
602.3 - 966.8
952.8 - 1451.8
270
229
143
NA
183.5 - 239.8 271.4 - 353.4
340.4 - 681.6
676.7 - 1085.9
1070.5 - 1630.6
300
254
159
NA
203.7 - 266.2 301.2 - 392.2
377.8 - 756.2
751.1 - 1205.0
1188.2 - 1809.5
400
339
212
NA
272.4 - 355.8 402.6 - 524.0
504.8 - 1009.9 1004.0 - 1609.8
1588.4 - 2417.6
500
424
265
NA
341.1 - 445.4 504.0 - 655.8
631.9
1263.7 1257.0 - 2014.7
1988.6 - 3025.7
Screen Size (16:10)
2.97 -4.79:1
NP30ZL
NP12ZL
NP13ZL
NP14ZL
1.50 - 3.02:1
NP15ZL
4.70 - 7.20:1
inches
Zoom Lenses
inches
inches
0.79 - 1.04:1
1.19 - 1.56:1
inches
inches
