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SS
40
60
a' N
1290
1900
3
7
(50
/
)
(74
/
4
8
M 1470
2170
7
1
(57
/
)
(85
/
8
2
x
b+290
b+409
1
1
(b+11
/
)
(b+16
/
2
b
23.306
a'(N) = {(SS ×
/0.7874)+
28.188
a'(M) = {(SS ×
/0.7874)+
x = b + (SS/0.7874 × 4.667+
The installation measurements and their calculation method for each lens are shown above.
The alphabetical letters in the charts and calculation methods indicate the following.
SS: screen size measured diagonally (inches)
a': distance between the hole (front) for mounting a projector suspension support on bottom
surface of this projector and the center of the screen
b: distance between the projector suspension support mounting surface on bottom of this
projector and the ceiling
x: distance between the center of the screen and the ceiling
N: minimum
M: maximum
80
100
120
2500
3110
3720
1
1
)
(98
/
)
(122
/
)
(146
2
2
2870
3560
4260
1
1
)
(113
/
)
(140
/
)
(167
8
4
b+527
b+646
b+764
3
1
)
(b+20
/
)
(b+25
/
)
(b+30
8
4
2
4.7574
} × 1.025
75.509
} × 0.975
53.2
)
150
180
4630
5540
1
3
1
/
)
(182
/
)
(218
/
)
2
8
4
5310
6360
3
1
1
/
)
(209
/
)
(250
/
)
4
8
2
b+942
b+1120
1
1
1
/
)
(b+37
/
)
(b+44
/
)
8
8
8
Free
Unit: mm (inches)
200
250
300
6140
7660
9180
7
5
1
(241
/
)
(301
/
)
(361
/
8
8
7050
8800
10540
5
1
1
(277
/
)
(346
/
)
(415
/
8
2
b+1239
b+1535
b+1831
7
1
1
(b+48
/
)
(b+60
/
)
(b+72
8
2
Installation Diagram
)
2
)
8
/
)
8
61
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