Acer X1220H Series User Manual page 22

Desired Screen size
distance
(Min zoom)
(m)
<A>
Diagonal W (cm) x
(inches) H (cm)
<B>
1.5 34 69 x 52
2 46 93 x 69
2.5 57 116 x 87
3 68 139 x 104
3.5 80 162 x 122
4 91 185 x 139
4.5 103 208 x 156
5 114 231 x 174
6 137 278 x 208
7 159 324 x 243
8 182 370 x 278
9 205 417 x 313
10 228 463 x 347
11 251 509 x 382
12 273 556 x 417
Zoom Ratio: 1.1x
Top Screen size
From base to Diagonal
top of image (inches)
<B>
(cm) <C>
68 37
90 50
113 62
135 75
158 87
181 100
203 112
226 125
271 150
316 175
361 200
406 225
451 250
497 275
542 300
Top
(Max zoom)
W (cm) x From base to top
H (cm)
of image (cm)
<C>
76 x 57 74
102 x 76 99
127 x 95 124
152 x 114 148
178 x 133 173
203 x 152 198
228 x 171 223
254 x 190 247
305 x 228 297
355 x 266 346
406 x 305 396
457 x 343 445
508 x 381 495
558 x 419 544
609 x 457 594
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