Stacking Systems - JVC DLA-G20 Sales Manual

Table: Relationship between screen size and throw distance
DLA-S15
4:3
To obtain the throw distance from the
projection size (projection ratio: 1:1)
Projection size
Model Width Length Throw distance
(inches) (diagonal) (m) (m) (m) (1:1)
40 0.81 0.61 0.76
50 1.02 0.76 0.96
60 1.22 0.91 1.16
70 1.42 1.07 1.36
80 1.63 1.22 1.56
90 1.83 1.37 1.76
100 2.03 1.52 1.97
110 2.24 1.68 2.17
120 2.44 1.83 2.37
130 2.64 1.98 2.57
140 2.84 2.13 2.77
150 3.05 2.29 2.97
160 3.25 2.44 3.18
170 3.45 2.59 3.38
180 3.66 2.74 3.58
190 3.86 2.90 3.78
200 4.06 3.05 3.98
For the maximum projection size, use a 200-type (4:3) depending on the lens performance.
As the throw distance and projection size are only accurate to within ±5%, a throw distance adjustment mechanism is
required on the installation platform.
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Use the table below as a guide.
To obtain the projection size from the
throw distance (projection ratio: 1:1)
Projection size
Throw distance
Model Width Length
(m) (1:1)
(inches) (diagonal) (m) (m)
0.76 40.0 0.81 0.61
1.00 52.0 1.06 0.79
1.25 64.5 1.31 0.98
1.50 77.0 1.56 1.17
1.75 89.5 1.82 1.36
2.00 101.4 2.06 1.55
2.25 114.0 2.32 1.74
2.50 126.5 2.57 1.93
2.75 139.0 2.82 2.12
3.00 151.4 3.08 2.31
3.25 163.5 3.32 2.49
3.50 176.0 3.58 2.68
3.75 188.5 3.83 2.87
4.00 201.0 4.08 3.06

Stacking systems

1. DLA-M4000 stacking system
When high-intensity projection capabilities are required,
two DLA-M4000s can be stacked in a vertical or horizontal
configuration.
In a vertical stacking configuration, the DLA-
M4000s are stacked one above the other. Using the
power-driven lens shift function, the two projection images
can be superimposed to obtain an image with double the
standard brightness.
In a horizontal stacking configuration, the DLA-
M4000s are placed side by side. The two projection
images are superimposed using the mechanical lens shift
function.
Note:
As the two projection images are superimposed,
registration differences appear in the center and
peripheral areas of the screen due to the lens distortion.
Use the center portion of the optical lens to minimize the
D-ILA-M4000 stack shift table
Screen size Throw
Width Height (368/H)*100
(4:3) distance
Y=50 Y45=
65 1321 991 1970 37.13 12.87 7.87
15.51 10.51
70 1423 1067 2130 34.49
80 1626 1219 2440 30.19 19.81 14.81
90 1829 1372 2760 26.82 23.18 18.18
100 2032 1524 3080 25.15 24.85 19.85
28.04 23.04
110 2235 1676 3390 21.96
120 2438 1829 3710 20.12 29.88 24.88
130 2642 1981 4030 18.58 31.42 26.42
140 2845 2134 4340 17.24 32.76 27.76
28.9
150 3048 2286 4660 16.1 33.9
160 3751 2438 4980 15.1 34.9 29.9
170 3454 2591 5290 14.2 35.8 30.8
180 3657 2743 5610 13.42 36.58 31.58
32.29
190 3861 2896 5930 12.71 37.29
200 4064 3048 6240 12.07 37.93 32.93
210 4270 3200 6560 11.5 38.5 33.5
220 4470 3350 6880 10.98 39.02 34.02
230 4670 3510 7200 10.48 39.52 34.52
240 4880 3660 7510 10.05 39.95 34.95
250 5080 3810 7830 9.66 40.34 35.34
Note:
The data in this table is based on the assumption that two DLA-M4000s are stacked vertically.
When the offset axis of unit A is X% and that of unit B is Y%, X is obtained with Y = 50 to 10 in the formula
Y X = 368/H x 100 (provided that the vertical offset axis of the DLA-M4000 is 0 to 50%).
registration difference. This difference cannot be
eliminated because it is caused by lens distortion. The
smaller the lens magnification, the less the distortion.
Screen upper edge
Stacking by suspending
from the ceiling (DLA-M4000 x 2)
Screen lower edge
Stacking on the floor (DLA-M4000 x 2)
Vertical stacking limit range:
The DLA-M4000s can be stacked within the area from the screen
upper edge to the lower edge.
X
Y=40 Y=35 Y=30 Y=25 Y=20 Y=15 Y=10
2.78
5.51 0.51
9.81 4.81
13.18 8.18 3.18
14.85 9.85 4.85
18.04 13.04 8.04 3.04
19.88 14.88 9.88 4.88
21.42 16.42 11.42 6.42 1.42
22.76 17.76 12.76 7.76 2.76
23.9 18.9 13.9 8.9 3.9
24.9 19.9 14.9 9.9 4.9
25.8 20.8 15.8 10.8 5.8 0.8
26.58 21.58 16.58 11.58 6.58 1.58
27.29 22.29 17.29 12.29 7.29 2.29
27.93 22.93 17.93 12.93 7.93 2.93
28.5 23.5 18.5 13.5 8.5 3.5
29.02 24.09 19.09 14.09 9.09 4.09
29.52 24.52 19.52 14.52 9.52 4.52
29.95 24.95 19.95 14.95 9.95 4.95
30.34 25.34 20.34 15.34 10.34 5.34 0.34
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