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Projection Distance and Screen size for Ceiling Mount
• 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 manufacture 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
Screen size H-Width
48"
(4:3 Diagonal)
(60")
inch
74.41
A
mm
1890
inch
25.51
B
mm
648
inch
72.79
C
mm
1849
inch
–
E
mm
–
NOTE:
• For screen 150 inches (3810mm) or larger (in the diagonal direction), set so that the distance between the surface of installa-
tion 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 = [(5/18 W" 12.5) 4.99] 70.28
B = (0.208 A) 10.04
C = 0.979 A
E = (1/2 Screen Height) B
• The margin of error for projection distance (A) is 3%
C
12
12
A
56"
64"
72"
(70")
(80")
(90")
85.51
96.59
107.68
118.75
2172
2453
2735
27.82
30.13
32.43
707
765
824
83.65
94.48
105.33
116.16
2400
2676
2125
–
–
–
–
–
–
7.92"
(201mm)
12
Line of sight
80"
96"
120"
(100")
(120")
(150")
140.91
174.15
207.40
3016
3579
4423
34.73
39.34
46.25
882
1000
1175
137.86
170.35
202.87
3502
2951
4327
–
–
–
–
–
–
Units=mm W"=Screen H-Width
A = [(5/18 W" 12.5) 126.64] 1785
B = (0.208 A) 255
C = 0.979 A
E = (1/2 Screen Height) B
5
INSTALLATION SET-UP INSTRUCTION
5.12"
(130mm)
E
B
Screen center
144"
160"
192"
(180")
(200")
(240")
229.55
273.86
5268
5830
6956
53.16
57.77
66.98
1351
1468
1702
224.53
267.88
5153
5704
6804
0.84
2.24
5.03
22
57
128
Ceiling Mounting
Ceiling Mounting
When using a screen 150"
(3810mm) or larger (in the
diagonal direction)
216"
240"
(270")
(300")
307.10
340.36
7800
8645
73.89
80.81
1877
2053
300.40
332.92
7630
8457
7.11
9.2
181
234
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