NEC Display Solutions of America, Inc.
NP310/NP410/NP510 Installation Guide
Ceiling Mounted and Desktop
Rev 1.1
www.necdisplay.com
NP310/NP410/NP510
Page 2 of 6
Diagrams and Distance Charts
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Lens Offset From
Mount Pipe
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Bottom
2.22"
C
Throw Distance
Screen Top
4.56"
5.17"
D
B
Lens Ctr
Screen Ctr
D
2.79
Ceiling Mounted
Desktop
Diagonal Width(W) Height (H)
inches
inches
inches
inches
30
24
18
6
36
-
43
9.9
-
8.2
60
48
36
12
73
-
88
9.7
-
8.0
67
53.6
40.2
14
81
-
98
9.7
-
8.0
72
57.6
43.2
15
87
-
105
9.6
-
8.0
84
67.2
50.4
17
102
-
123
9.6
-
8.0
90
72
54
19
110
-
132
9.6
-
8.0
100
80
60
21
122
-
147
9.6
-
8.0
120
96
72
25
147
-
176
9.6
-
8.0
150
120
90
31
184
-
221
9.5
-
8.0
180
144
108
37
220
-
265
9.5
-
8.0
210
168
126
43
257
-
310
9.5
-
7.9
240
192
144
50
294
-
354
9.5
-
7.9
270
216
162
56
331
-
398
9.5
-
7.9
300
240
180
62
368
-
443
9.5
-
7.9
-20
-23
-25
-28
-9
-11
-14
-17
-6
-7
-8
-8
D
α
w ide - tele
degrees
Screen Size (4:3)
-6
inches
-3
B
C
w ide - tele
inches
Distance Chart for popular 4:3 screens
Note:
For screen sizes not indicated on the projection
tables, use the formulas on page 1.
