Obtaining A Preferred Projected Image Size; Installation For A 16:9 Ratio Screen - BenQ PE7700 User Manual

PE7700-e.book Page 15 Monday, January 10, 2005 11:20 AM

Obtaining a preferred projected image size

The distance from the projector lens to the screen, the zoom setting, and the video format each factors in the
projected image size. BenQ has provided separate tables of dimensions for both 16:9 and 4:3 screen ratios to
assist you in determining the ideal location for your projector.
1. Determine the aspect ratio of your screen, (16:9 or 4:3)?
2. Select the Screen Size you desire from the 16:9 ratio screen dimension table or 4:3 ratio screen dimension
table below, according to what screen type you have. Install the projector at a distance from the screen
corresponding to between the Min. and Max. Projection Distance values in the table.
3. Decide the exact height of your projector.
For example, if you are using a 16:9 screen with 80 inches diagonal, you are suggested to place your projector
within a range between 2.34m to 3.18m from the screen. The ideal height of your projector lens center will be
level with the bottom or top side of the screen.

Installation for a 16:9 ratio screen

Ceiling Installation
Type
Projection Distance
Offset
16:9 (widescreen) ratio screen dimension table
Screen Size
Type Height
(inch) / (cm) (inch) / (cm)
37 / 94 18.1 / 46
50 / 127 24.4 / 62
60 / 152 29.5 / 75
70 / 178 34.8 / 87
80 / 203 39.4 / 100
90 / 229 44.1 / 112
100 / 254 49.2 / 125
110 / 279 54.8 / 137
120 / 305 58.7 / 149
130 / 325 63.8 / 162
140 / 356 68.5 / 174
150 / 381 73.6 / 187
160 / 406 78.4 / 199
170 / 432 83.5 / 212
180 / 457 88.2 / 224
190 / 483 93.3 / 237
200 / 508 98.0 / 249
250 / 635 122.4 / 311
300 / 762 147.2 / 374
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.
n examination of the table reveals that you can place the projector lens in the range from 1.08 to 11.91m
A
distance from the screen, which will give you a projected image from 0.82 x 0.46m to 6.64 x 3.74m full screen.
Floor Installation
Ceiling
Type
Center of the lens
Screen
Projection Distance
Width Min.
(inch) / (cm) (inch) / (cm)
32.3 / 82 42.5 / 108
43.7 / 111 57.5 / 146
52.4 / 133 68.9 / 175
61.0 / 155 80.3 / 204
69.7 / 177 92.1 / 234
78.4 / 199 103.5 / 263
87.0 / 221 115.0 / 292
96.1 / 244 126.4 / 321
104.7 / 266 137.8 / 350
113.4 / 288 149.6 / 380
122.1 / 310 161.0 / 409
130.7 / 332 172.4 / 438
139.4 / 354 183.9 / 467
148.0 / 376 195.3 / 496
156.7 / 398 207.1 / 526
165.8 / 421 218.5 / 555
174.4 / 443 229.9 / 584
217.7 / 553 287.4 / 730
261.4 / 664 344.9 / 876
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Screen
Center of the lens
Offset
Projection Distance
Height Offset
Max. Tele
(inch) / (cm) (inch) / (cm)
57.9 / 147 0 / 0
78.4 / 199 0 / 0
93.7 / 238 0 / 0
109.5 / 278 0 / 0
125.2 / 318 0 / 0
140.6 / 357 0 / 0
156.3 / 397 0 / 0
172.1 / 437 0 / 0
187.4 / 476 0 / 0
203.2 / 516 0 / 0
218.9 / 556 0 / 0
234.7 / 596 0 / 0
250.0 / 635 0 / 0
265.8 / 675 0 / 0
281.5 / 715 0 / 0
296.9 / 754 0 / 0
312.6 / 794 0 / 0
390.9 / 993 0 / 0
468.9 / 1191 0 / 0
Positioning your projector
Floor
Wide
(inch) / (cm)
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
0 / 0
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