NEC MultiSync XG135LC, Руководство по установке

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9
INSTALLATION SET-UP INSTRUCTION
A:Distance between the lens and the screen center
D:Distance between the desk top and the screen center
Desk Top Projection Distance and Screen Size for XG135LC
• The following shows the relative position relationship of the projector with the screen. See table below.
Screen center
D
α
α
α
Desk top line
A
Line of sight
Desk Top System
NOTE:
• The projection distance is based on the screen width.
• Sizes not found between 48 (60) and 240 (300) inches are determined by the following formulae:
Units=inches W"=Screen H-Width
A = (25/96
2
W"
1
12.5)
2
5.47
`
71.85
D = (
β
2
A)
`
10.04
Units=mm W"=Screen H-Width
A = (25/96
2
W"
1
12.5)
2
141
`
1825
D = (
β
2
A)
`
245
Screen size (Diagonal)
60–89"
90–129"
130–179"
180–300"
α
11.8
°
12.2
°
12.4
°
12.6
°
β
0.204
0.211
0.215
0.218
209.57
5323
55.37
1406
232.48
5905
60.37
1533
309.17
7853
77.10
1958
120"
(150")
144"
(180")
160"
(200")
192"
(240")
216"
(270")
240"
(300")
12.4
°
12.6
°
82.83
2104
26.59
675
94.61
2403
29.00
737
A
D
48"
(60")
Screen size H-Width
(4:3 Diagonal)
56"
(70")
64"
(80")
α
11.8
°
12.2
°
175.16
4449
47.27
1201
278.15
7065
70.33
1786
71.10
1806
24.20
615
inch
mm
inch
mm
338.62
8601
83.52
2121
96"
(120")
140.91
3579
39.43
1002
80"
(100")
118.07
2999
34.61
879
106.34
2701
32.13
816
72"
(90")