SS
40
60
N
a'
1260
1860
5
1
(49
/
)
(73
/
)
8
4
M
1450
2140
1
3
(57
/
)
(84
/
)
8
8
x
b+293
b+411
5
1
(b+11
/
)
(b+16
8
b
Free
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
80
100
120
2470
3070
3670
3
(97
/
)
(121)
(144
8
2840
3540
4240
7
1
(111
/
)
(139
/
)
(167)
8
2
b+530
b+649
b+767
7
5
/
)
(b+20
/
)
(b+25
/
)
(b+30
4
8
8
150
180
200
4580
5480
6090
5
3
7
/
)
(180
/
)
(215
/
)
(239
8
8
8
5280
6330
7030
1
(208)
(249
/
)
(276
4
b+945
b+1123
b+1241
1
1
1
/
)
(b+37
/
)
(b+44
/
)
(b+48
4
4
4
Unit: mm (inches)
250
300
7600
9100
7
1
3
/
)
(299
/
)
(358
8
4
8770
10520
13
3
1
/
)
(345
/
)
(414
16
8
b+1538
b+1834
7
5
/
)
(b+60
/
)
(b+72
8
8
59
Installation Diagram
/
)
8
/
)
4
1
/
)
4
GB