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Benq W20000 Benutzerhandbuch

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  Positioning your projector
Eng
lish
Installation for a 4:3 ratio screen
The illustrations and table below are provided for those users who already have 4:3 aspect ratio screens or intend 
to purchase 4:3 aspect ratio screens to view 16:9 ratio projected images.
4:3 (standard) ratio screen dimension table
* See the pictures of 
"Shifting the projection lens vertically" on page 12
 for the range of (C) and (D)
The above numbers are approximate and may be slightly different from the actual measurements. Only the 
recommended screen sizes are listed. If the your screen size is not in the table above, please contact your 
BenQ dealer for assistance.
Projection Distance
Floor
Screen
Image Height
Center of the lens
Diagonal
Floor Installation
Screen
Image Height 
Projection Distance
Ceiling
Center of the lens
Diagonal
Ceiling Installation
Screen Dimensions
Projection Distance in cm
Offset
Diagonal
(inch)
Height
(cm)
Width
(cm)
Min 
distance 
(with 
max 
zoom)
Average
Max 
distance 
(with min 
zoom)
Highest 
lens 
position
(cm) 
(C)*
Lowest 
lens 
position
(cm)(D)*
Image 
Height
(cm)
41
62
83
154
169
184
5
-42
47
50
76
102
187
206
225
6
-51
57
60
91
122
225
248
270
7
-62
69
70
107
142
262
289
315
8
-72
80
80
122
163
300
330
360
9
-82
91
90
137
183
337
371
405
10
-93
103
100
152
203
375
413
450
11
-103
114
110
168
224
412
454
495
13
-113
126
120
183
244
450
495
539
14
-123
137
130
198
264
487
536
584
15
-134
149
140
213
284
525
577
629
16
-144
160
150
229
305
562
618
674
17
-154
171
160
244
325
599
659
719
18
-165
183
170
259
345
637
701
764
19
-175
194
180
274
366
674
742
809
21
-185
206
190
290
386
712
783
854
22
-195
217
200
305
406
749
824
899
23
-206
229
250
381
508
937
1031
1124
29
-257
286
300
457
610
1124
1237
1349
34
-309
343
W20000-en.book  Page 15  Monday, October 22, 2007  3:35 PM