NEC UM351W Installation Manual page 3

UM361X, UM351W & UM352W Installation Guide
Desktop and Ceiling Mount
Desktop Setup
The following diagram shows the relationship between projector position and the screen. Refer to the charts below for data.
Distances are in inches. For millimeters multiply by 25.4.
Distance Chart for Popular 4:3 Screen Sizes
Screen Size
Diagonal Width
inch inch
61.5 49
65.0 52
70.0 56
75.0 60
80.0 64
85.0 68
90.0 72
95.0 76
100.0 80
105.0 84
110.0 88
115.0 92
116.6 93
Projection Formulas:
A = C-13.52
B = 0.4854W+4.142
C = 0.360W
D = 0.1104W+4.142
Note: For screen sizes not indicated in the distance charts, use the formulas on page 1.
www.necdisplay.com
A
Height
inch inch inch
37 4.19 28.02
39 5.20 29.38
42 6.64 31.32
45 8.08 33.27
48 9.52 35.21
51 10.96 37.15
54 12.40 39.09
57 13.84 41.03
60 15.28 42.97
63 16.72 44.92
66 18.16 46.86
69 19.60 48.80
70 20.06 49.42
NEC Display Solutions of America, Inc.
B C D
inch inch
17.71 9.57
18.72 9.88
20.16 10.32
21.60 10.77
23.04 11.21
24.48 11.65
25.92 12.09
27.36 12.53
28.80 12.97
30.24 13.42
31.68 13.86
33.12 14.30
33.58 14.44
UM361X, UM351W, UM352W
v1.0
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