Acer B123D Series User Manual page 25

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WXGA series
If the projector is 2.0 m from the screen, good image quality is possible for
image sizes between 54" and 60".
Note: Remind as below figure, the space of 91 cm height is
required when located at 2.0 m distance.
Screen size
Desired
Distance
Diagonal
(m)
(inch) W (cm) x H (cm)
<A>
<B>
1.1 29.69
1.5 40
2 54
3 81 174 x 109
4 108 233 x 145
5 135 291 x 182
6 162 349 x 218
7 189 407 x 254
8 216 465 x 291
9 243 523 x 327
10 270 581 x 363
Zoom Ratio: 1.1x
2.0 m
Desired Distance
Top
(Min zoom)
From base
to top of
image (cm)
<C>
64 x 40 45
87 x 55 61
116 x 73 82
123
163
204
245
286
327
368
408
Height: 91 cm
from base to
Height:
top of image
82 cm
Screen size
(Max zoom)
Diagonal
(inch) W (cm) x H (cm)
<B>
33 71 x 45
45 97 x 61
60 130 x 81
90 194 x 121
120 259 x 162
150 324 x 202
180 389 x 243
210 453 x 283
241 518 x 324
271 583 x 364
300.69 648 x 405
15
Top
From base to
top of image
(cm)
<C>
50
68
91
136
182
227
273
318
364
409
455