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Before Installation
Installation Diagrams
Floor Installation Using Rear Projection Flat Screen
When the optical axis angle is 2°
Optical axis
angle
14.6°
Standard hole for
installation
Floor
Screen size
90
(inches)
A (Vsize)
1372
(54
1
/
8
B (Hcent)
95
(3
3
/
4
E (Xlens)
2567
(101
1
/
8
F (Lhole)
2873
(113
1
/
8
G (Lmax)
3594
(141
1
/
2
16
(GB)
Installation
What is the optical axis angle?
The optical axis angle is the angle between the horizontal level line and the
straight line from the center of the projector's green lens to the center of
the screen. When using a rear projection screen, you can get the brightest
picture when the center of the screen is aligned with a straight line
extension of the center of the green lens.
Therefore, the most suitable optical axis angle varies depending on the
height of the screen and your line of sight.
Wall
G
Center of the screen
2°
–
B
0
+
E
F
100
120
1524
1829
)
(60)
(72
1
/
)
8
86
67
)
(3
1
/
)
(2
3
/
)
2
4
2826
3348
)
(111
3
/
)
(131
7
/
)
8
8
3132
3653
)
(123
3
/
)
(143
7
/
)
8
8
3853
4375
)
(151
3
/
)
(172
1
/
)
4
4
Necessary parts modifications
Changing the polarity used for "Floor installation, rear projection"
For details, see "Changing the Polarity" on page 20
A
150
180
2286
2743
(90)
(108)
36
6
(1
7
/
)
(
1
/
)
16
4
4252
5097
(167
1
/
)
(200
3
/
)
2
4
4558
5402
(179
1
/
)
(212
3
/
)
2
4
5279
6124
(207
7
/
)
(241
1
/
)
8
8
Unit: mm (inches)
200
250
3048
3810
(120)
(150)
–13
–60
(–
17
/
)
(–2
3
/
)
32
8
5659
7011
(222
7
/
)
(276
1
/
)
(333
8
8
5964
7316
(234
7
/
)
(288
1
/
)
(345
8
8
6686
8038
(263
1
/
)
(316
1
/
)
(373
4
2
.
(GB)
300
4572
(180)
–111
(–4
3
/
)
8
8467
3
/
)
8
8772
3
/
)
8
9494
7
/
)
8
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