NEC UM351W Installation Manual page 2

UM361X, UM351W & UM352W Installation Guide
Desktop and Ceiling Mount
Ceiling Mounted Installation
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.
Projection Formulas:
A = C-13.52
B = 0.4229W+4.174
C = 0.360W
D = 0.1104W+4.174
Distance Chart for Popular 16:10 Screen Sizes
Screen Size
Diagonal Width
inch inch
58.0 49
60.0 51
65.0 55
70.0 59
75.0 64
80.0 68
85.0 72
90.0 76
95.0 81
100.0 85
105.0 89
110.0 93
Note: For screen sizes not indicated in the distance charts, use the formulas on page 1.
www.necdisplay.com
A
Height
inch inch
31 4.19
32 4.80
34 6.32
37 7.85
40 9.38
42 10.90
45 12.43
48 13.96
50 15.48
53 17.01
56 18.53
58 20.06
NEC Display Solutions of America, Inc.
B C
inch inch
24.97 17.71
25.69 18.32
27.48 19.84 10.26
29.28 21.37 10.73
31.07 22.90 11.20
32.86 24.42 11.66
34.66 25.95 12.13
36.45 27.48 12.60
38.24 29.00 13.07
40.04 30.53 13.54
41.83 32.05 14.00
43.62 33.58 14.47
UM361X, UM351W, UM352W
D
inch
9.60
9.79
v1.0
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