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INSTALLATION SET-UP INSTRUCTION
Ceiling Mount Projection Distance and Screen Size or XG135LC/XG110LC
• Install in such a way that the projector and screen are positioned in the proper direction and at the proper angle. If not, the projector's
performance will be affected and its reliability will decrease. Be sure to position the projector properly.
The manufacturer will not be held responsible for any problems occurring when the projector is not installed in the proper position.
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation
Ceiling Mount System
B
Screen center
α
β (=sinα)
γ (=cosα)
Screen size H-Width
48"
(4:3 Diagonal)
(60")
inch
71.10
A
mm
1806
inch
25.38
B
mm
645
inch
69.61
C
mm
1768
inch
–
E
–
mm
NOTE:
• For screens 150 inches (3810mm) or larger (in the diagonal direction), set so that the distance between the surface of
installation of the mounting A and the ceiling is E.
• Set the projection distance based on the width of the screen.
• If the figures on the table do not match the figures in the formulae, use the figures on the table.
• For screen sizes of 60 to 300 inches not indicated on the table, use the following proportional formulae:
Units=inches W"=Screen H-Width
A = (25/96 W" 12.5) 5.47 71.85
B = (β A) 10.83
C = γ A
E = (1/2 Screen Height) B
• The margin of error for projection distance (A) is 3%.
C
α
α
A
11.8°
0.204
0.979
56"
64"
72"
(70")
(80")
(90")
82.83
94.61
106.34
2104
2403
2701
27.78
30.18
33.31
705
767
846
81.10
92.62
103.89
2060
2353
2639
–
–
–
–
–
–
11.15"
(283mm)
α
Line of sight
12.2°
12.4°
0.211
0.215
0.977
80"
96"
120"
(100")
(120")
(150")
118.07
140.91
175.16
2999
3579
4449
40.61
48.45
35.79
909
1032
1231
115.36
137.66
171.13
2930
3497
4347
–
–
–
–
–
–
Units=mm W"=Screen H-Width
A = (25/96 W" 12.5) 141 1825
B = (β A) 275
C = γ A
E = (1/2 Screen Height) B
8
5.12"
(130mm)
E
B
Screen center
12.6°
0.218
0.976
144"
160"
192"
(180")
(200")
(240")
209.57
232.48
278.15
5323
5905
7065
71.51
56.55
61.55
1436
1563
1816
204.54
226.90
271.47
5195
5763
6895
–
–
0.47
–
–
12
Ceiling Mounting
Ceiling Mounting
When using a screen 150"
(3810mm) or larger (in the
diagonal direction)
216"
240"
(270")
(300")
309.17
338.62
7853
8601
78.28
84.70
1988
2151
301.75
330.50
7665
8395
2.72
5.28
69
134
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