Benq PE5120 用户手册
13
Positioning your projector
Ceiling installation for a 4:3 ratio screen
Floor installation for a 4:3 ratio screen
4:3 (standard) ratio screen dimension table:
The above numbers are approximate and may be slightly different from the actual measurements.
An examination of the table reveals that you can place the projector lens in the range from 1.73 to 8.47m
distance from the screen, which will give you a projected image from 1.02 x 0.62m to 4.43 x 2.49m.
distance from the screen, which will give you a projected image from 1.02 x 0.62m to 4.43 x 2.49m.
Screen Size
Projection
Distance
Height Offset
Image
Height
(cm)
Type
(inch)
Height
(cm)
Width
(cm)
Min.
(cm)
Max.
(cm)
Tele
(cm)
Wide
(cm)
50
76
102
173
212
21
20
62
60
91
122
207
254
25
24
75
70
107
142
242
297
29
29
87
80
122
163
276
339
34
33
100
90
137
183
311
381
38
37
112
100
152
203
345
424
42
41
125
110
168
224
380
466
46
45
137
120
183
244
414
508
50
49
149
130
198
264
449
551
55
53
162
140
213
284
483
593
59
57
174
150
229
305
518
636
63
61
187
160
244
354
553
678
67
65
199
170
259
376
587
720
71
70
212
180
274
398
622
763
76
74
224
190
290
421
656
805
80
78
237
200
305
443
691
847
84
82
249
Screen
Image H
eight
Projection Distance
Offset
Screen Size
Ceiling
Center of the lens
Projection Distance
Floor
Screen
Image Height
Offset
Center of the lens