Ceiling Mounted - NEC VT480 Installation Manual

VT480/58/580 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.visualsystems.com
D
Screen Top
Lens Ctr
B
Screen Ctr
Screen Ctr
B
Lens Ctr
D
Screen Bottom
Screen Size (4:3)
Diag W
inches inches inches inches
30 24
60 48
72 57.6
84 67.2
90 72
100 80
120 96
150 120
180 144
200 160
250 200
300 240
NEC Solutions (America), Inc.
Visual Systems Division
C
Throw Distance
C
Throw Distance
2.57"
C
B
H wide - tele
inches
18 6 35 - 43
36 13 69 - 84
43.2 15 83 - 102
50.4 18 98 - 119
54 19 105 - 128
60 21 117 - 142
72 26 141 - 171
90 32 176 - 214
108 38 212 - 257
120 43 236 - 286
150 53 296 - 359
180 64 356 - 431
VT480/58/580
Rev 1.1eu
5.26"
5.68"
Lens Offset From
Mount Pipe
3.27"
α
D
wide - tele
inches degrees
-3 10.2 - 8.5
-5 10.1 - 8.4
-6 10.0 - 8.4
-7 10.0 - 8.4
-8 10.0 - 8.4
-9 10.0 - 8.3
-10 10.0 - 8.3
-13 10.0 - 8.3
-16 10.0 - 8.3
-17 10.0 - 8.3
-22 9.9 - 8.3
-26 9.9 - 8.3
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