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55Installation Diagram
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Unit: mm (inches)
a’ (N)={(SS × 23.177/0.7874)+51.4} × 1.025
a’ (M)={(SS × 28.177/0.7874)+51.4} × 0.975
x=b+(SS/0.7874 × 4.667+55.8)
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 hole (front) for mounting a projector suspension support on
bottom surface of this projector and the ceiling
x: distance between the center of the screen and the ceiling
N: minimum
M: maximum
SS 40 60 80 100 120 150 180 200 250 300
a’
N
1260
(49
5
/
8
)
1860
(73
1
/
4
)
2470
(97
3
/
8
)
3070
(121)
3670
(144
5
/
8
)
4580
(180
3
/
8
)
5480
(215
7
/
8
)
6090
(239
7
/
8
)
7600
(299
1
/
4
)
9100
(358
3
/
8
)
M
1450
(57
1
/
8
)
2140
(84
3
/
8
)
2840
(111
7
/
8
)
3540
(139
1
/
2
)
4240
(167)
5280
(208)
6330
(249
1
/
4
)
7030
(276
13
/
16
)
8770
(345
3
/
8
)
10520
(414
1
/
4
)
xb+293
(b+11
5
/
8
)
b+411
(b+16
1
/
4
)
b+530
(b+20
7
/
8
)
b+649
(b+25
5
/
8
)
b+767
(b+30
1
/
4
)
b+945
(b+37
1
/
4
)
b+1123
(b+44
1
/
4
)
b+1241
(b+48
7
/
8
)
b+1538
(b+60
5
/
8
)
b+1834
(b+72
1
/
4
)
bFree