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Adjusting the Projection Distance
AN-P9MX
Throw distance ratio
1:0.9
NORMAL Mode (4:3)
The formula for screen size and projection distance
WIDE Mode (16:9)
The formula for screen size and projection distance
• There is an error of
• Values with a minus ( ) sign indicate the distance of the lens centre below the bottom of the screen.
27
Screen size (4:3) (X)
Diag.
Width
762 cm
(300 )
610 cm
(240 )
457 cm
508 cm
(200 )
406 cm
(160 )
305 cm
381 cm
(150 )
305 cm
(120 )
229 cm
254 cm
(100 )
203 cm
(80 )
152 cm
213 cm
(84 )
170 cm
(67 )
127 cm
183 cm
(72 )
147 cm
(58 )
109 cm
152 cm
(60 )
122 cm
(48 )
102 cm
(40 )
81 cm
(32 )
l = 0.0186x
0.0563
h = 0.3x
2.54
Screen size (4:3) (X)
Diag.
Width
762 cm
(300 )
663 cm
(261 )
373 cm
508 cm
(200 )
442 cm
(174 )
249 cm
381 cm
(150 )
333 cm
(131 )
188 cm
338 cm
(133 )
295 cm
(116 )
165 cm
269 cm
(106 )
234 cm
(92 )
132 cm
254 cm
(100 )
221 cm
(87 )
124 cm
234 cm
(92 )
203 cm
(80 )
114 cm
213 cm
(84 )
185 cm
(73 )
104 cm
183 cm
(72 )
160 cm
(63 )
152 cm
(60 )
132 cm
(52 )
102 cm
(40 )
89 cm
(35 )
l = 0.0203x
0.0579
h = 0.2451x
2.54
3% in the formula above.
Projection distance (L)
Height
(180 )
5.5 m
(120 )
3.7 m
(90 )
2.7 m
(60 )
1.8 m
(50 )
1.5 m
(43 )
1.3 m
91 cm
(36 )
1.1 m
61 cm
(24 )
0.7 m
x: Screen size (diag.) (X) (inches)
l: Projection distance (L) (m)
h: Lens centre to the lower edge of the screen (H) (cm)
Projection distance (L)
Height
(147 )
6.0 m
(98 )
4.0 m
(74 )
3.0 m
(65 )
2.6 m
(52 )
2.1 m
(49 )
2.0 m
(45 )
1.8 m
(41 )
1.6 m
89 cm
(35 )
1.4 m
74 cm
(29 )
1.2 m
51 cm
(20 )
0.8 m
x: Screen size (diag.) (X) (inches)
l: Projection distance (L) (m)
h: Lens centre to the lower edge of the screen (H) (cm)
Lens centre to the lower edge of the screen (H)
228.6 cm
152.4 cm
114.3 cm
76.2 cm
64.0 cm
54.9 cm
45.7 cm
30.5 cm
Lens centre to the lower edge of the screen (H)
186.8 cm
124.5 cm
93.4 cm
82.8 cm
66.0 cm
62.3 cm
57.3 cm
52.3 cm
44.8 cm
37.4 cm
24.9 cm
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