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Floor Installation Using Rear Projection Flat Screen
When the optical axis angle is 2°
Optical axis
angle
15.5°
Standard hole for
installation
Floor
60
Screen size
(inches)
A (Vsize)
914
(36)
B (Hcent)
140
5
(5
/
)
8
E (Xlens)
1977
7
(77
/
)
8
F (Lhole)
2172
5
(85
/
)
8
G (Lmax)
2655
5
(104
/
)
8
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
70
80
90
1067
1219
1372
(42)
(48)
(54)
130
120
110
1
3
3
(5
/
)
(4
/
)
(4
/
4
4
8
2265
2556
2846
1
3
1
(89
/
)
(100
/
)
(112
/
4
4
8
2460
2751
3041
7
3
3
(96
/
)
(108
/
)
(119
/
8
8
4
2943
3234
3524
7
3
3
(115
/
)
(127
/
)
(138
/
8
8
4
Necessary parts modifications
Changing the polarity used for "Floor installation, rear projection"
For details, see "Changing the Polarity" on page 17 (EN).
A
100
120
1524
1829
2286
(60)
(72)
100
80
1
15
)
(4)
(3
/
)
(1
4
3136
3712
4599
1
1
)
(123
/
)
(146
/
)
(181
2
4
3331
3907
4794
1
7
)
(131
/
)
(153
/
)
(188
8
8
3814
4390
5277
1
7
)
(150
/
)
(172
/
)
(207
4
8
Unit: mm (inches)
150
180
200
2743
3048
(90)
(108)
(120)
49
18
-3
23
1
/
)
(
/
)
(-
/
)
16
32
8
5482
6075
1
7
1
/
)
(215
/
)
(239
/
)
(297
8
8
4
5677
6270
3
5
7
/
)
(223
/
)
(246
/
)
(304
4
8
8
6160
6753
7
5
7
/
)
(242
/
)
(265
/
)
(323
8
8
8
Installation
250
3810
(150)
-54
1
(-2
/
)
8
7544
1
/
)
8
7739
3
/
)
4
8222
3
/
)
4
13
(EN)
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