Diagrams & Distance Charts - NEC NP40 Installation Manual

NP40/50/60 Installation Guide
Ceiling Mounted and Desktop
Diagrams and Distance Charts
The following diagrams show the relationship between projector position and the screen. Refer to the chart below for data.
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 table, use the formulas on page 1.
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Lens Ctr
D
Screen Top
B
Screen Ctr
Screen Ctr
B
D
Lens Ctr
Screen Bottom
Sc reen Size
Diagonal Width Height
inch inch inch
33 26 20
60 48 36
72 58 43
84 67 50
90 72 54
100 80 60
120 96 72
150 120 90
180 144 108
200 160 120
260 208 156
300 240 180
C
Throw Distance
C
Throw Distance
2.28"
B C
wide - tele
inch inch
13 - 57
23 87 - 104
28 104 - 126
32 122 - 147
35 131 - 157
38 145 - 175
46 174 - 210
58 219 - 263
69 263 - 317
77 292 - 352
100 380 - 458
115 439 - 529
NEC Corporation of America
Visual Systems Division
4.75"
5.71"
Lens Offset From
Mount Pipe
NEC
1.95"
D α
wide - tele
inch degree
3 - 12.6
5 14.9 - 12.4
6 14.9 - 12.4
7 14.8 - 12.4
8 14.8 - 12.4
8 14.8 - 12.3
10 14.8 - 12.3
13 14.7 - 12.3
15 14.7 - 12.3
17 14.7 - 12.3
22 14.7 - 12.3
25 14.7 - 12.3
NP40/50/60
Rev 1.0
Page 2 of 6