Diagrams And Distance Charts; Ceiling Mounted - NEC NP-P451X Installation Manual

P451X/P501X Installation Guide
Ceiling Mounted and Desktop

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.

Ceiling Mounted

Desktop
Distance Chart for popular 4:3 screens
Note:
For screen sizes not indicated on the projection
tables, use the formulas on page 1.
www.necdisplay.com
NEC Display Solutions of America, Inc.
L e n s Offset From
Mo u nt Pipe
3.05"
Screen Size (4:3)
Diagonal Width(W) Height (H)
inches inches inches
30 24 18
60 48 36
67 53.6 40.2
72 57.6 43.2
84 67.2 50.4
90 72 54
100 80 60
120 96 72
150 120 90
180 144 108
210 168 126
240 192 144
270 216 162
300 240 180
C
Throw Distance
C
Throw Distance
B
C
w ide - tele
inches inches
inches
6 31 - 53
12 64 - 107
14 72 - 120
15 77 - 129
17 90 - 151
19 97 - 162
21 108 - 180
-11
25 130 - 216
-14
31 162 - 270
-17
37 195 - 325
-20
43 228 - 379
-22
50 261 - 434
-25
56 294 - 488
-28
62 327 - 543
P451X/P501X
Rev 1.0
Screen Top
D
Lens Ctr
B
Screen Ctr
Screen Ctr
B
Lens Ctr
D
Screen Bottom
α
D
w ide - tele
degrees
-3
11.3 - 6.7
-6
11.0 - 6.6
-6
10.9 - 6.6
-7
10.9 - 6.6
-8
10.9 - 6.6
-8
10.9 - 6.6
-9
10.9 - 6.6
10.8 - 6.5
10.8 - 6.5
10.8 - 6.5
10.8 - 6.5
10.8 - 6.5
10.7 - 6.5
10.7 - 6.5
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