Sharp PG-M15X User Manual Page 23

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Operation
21
Setting up the Screen
PG-M15S
Throw distance ratio
x : Picture size (Diag.) (inches)
L
1
: Maximum projection distance (feet)
L
2
: Minimum projection distance (feet)
H: Distance from the lens center to the
bottom of the image (inches)
17
41
64 (44.8 cm)
14
7
64 (35.8 cm)
10
37
64 (26.9 cm)
7
4
64 (17.9 cm)
5
59
64 (15.1 cm)
5
5
64 (12.9 cm)
4
15
64 (10.8 cm)
2
53
64 (7.2 cm)
Distance from the lens center to
the
bottom of the image (H)
Maximum (L
1
)
418 (12.7 m)*1
334 (10.2 m)*3
250 (7.6 m)
168 (5.1 m)
140 (4.3 m)
120 (3.7 m)
100 (3.0 m)
68 (2.0 m)
Minimum (L
2
)
350 (10.7 m)*2
280 (8.5 m)
210 (6.4 m)
140 (4.3 m)
119 (3.6 m)
101 (3.1 m)
85 (2.6 m)
57 (1.7 m)
Projection distance (L)
Picture size
NORMAL Mode
(4:3)
Diag. (x)
250
200
150
100
84
72
60
40
Width
200
160
120
80
67
58
48
32
Height
150
120
90
60
50
43
36
24
The formula for picture size and projection distance
Width
196
174
131
116
92
87
80
73
63
52
35
Height
110
98
74
65
52
49
45
41
35
29
20
Diag. (x)
225
200
150
133
106
100
92
84
72
60
40
STRETCH Mode
(16:9)
35
43
64 (90.6 cm)
31
47
64 (80.6 cm)
23
50
64 (60.4 cm)
21
7
64 (53.6 cm)
16
52
64 (42.7 cm)
15
55
64 (40.3 cm)
14
39
64 (37.1 cm)
13
20
64 (33.8 cm)
11
27
64 (29.0 cm)
9
34
64 (24.2 cm)
6
22
64 (16.1 cm)
Distance from the lens center to
the
bottom of the image (H)
Maximum (L
1
)
4010 (12.5 m)*4
364 (11.1 m)*6
273 (8.3 m)
242 (7.4 m)
193 (5.9 m)
182 (5.5 m)
168 (5.1 m)
153 (4.6 m)
131 (4.0 m)
1011 (3.3 m)
73 (2.2 m)
Minimum (L
2
)
344 (10.5 m)*5
306 (9.3 m)
2211 (7.0 m)
204 (6.2 m)
162 (4.9 m)
153 (4.7 m)
140 (4.3 m)
1210 (3.9 m)
110 (3.3 m)
92 (2.8 m)
61 (1.9 m)
Projection distance (L)
Picture size
L
1
(feet) = 0.05080x 3.281
L
2
(feet) = 0.04269x 3.281
H (inches) = 0.07056x
L
1
(feet) = 0.05535x 3.281
L
2
(feet) = 0.04651x 3.281
H (inches) = 0.1586x
Width
144
120
80
67
58
48
32
Height
108
90
60
50
43
36
24
Diag. (x)
180
150
100
84
72
60
40
34
60
64 (88.7 cm)
29
7
64 (73.9 cm)
19
26
64 (49.3 cm)
16
19
64 (41.4 cm)
13
62
64 (35.5 cm)
11
41
64 (29.6 cm)
7
49
64 (19.7 cm)
Distance from the lens center to
the
bottom of the image (H)
Maximum (L
1
)
400 (12.2 m)*7
334 (10.2 m)*9
223 (6.8 m)
188 (5.7 m)
160 (4.9 m)
134 (4.1 m)
811 (2.7 m)
Minimum (L
2
)
337 (10.2 m)*8
280 (8.5 m)
188 (5.7 m)
158 (4.8 m)
135 (4.1 m)
112 (3.4 m)
76 (2.3 m)
Projection distance (L)
Picture size
The formula for picture size and projection distance
BORDER Mode
(4:3)
L
1
(feet) = 0.06774x 3.281
L
2
(feet) = 0.05692x 3.281
H (inches) = 0.1941x
There is an error of 3% in the formula above.
Values with a minus () sign indicate the distance of the lens center below the bottom of the screen.
The values do not match up when applying the formula in *1 to *9 above. However, this is not a calculation error.
For optimum focus, the recommended projection distance (L) is from 3 9 (1.15m) to 32 10 (10.0m).
The formula for picture size and projection distance
Screen
H
90˚
Lens center
L: Projection distance
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