Positioning your projector 17
LW890USTD
The screen aspect ratio is 16:10 and the projected picture is in a 16:10 aspect ratio.
a.
base on an image 762 mm from the floor, if the image is lower, the min ceiling height is reduced by the
measurement.
b. Assume the thickness of projection screen(X) is 0 mm.
c. Assume the thickness of projection screen(X) is 30 mm.
LH890USTD
The screen aspect ratio is 16:9 and the projected picture is in a 16:9 aspect ratio.
a.
base on an image 762 mm from the floor, if the image is lower, the min ceiling height is reduced by the
measurement.
b. Assume the thickness of projection screen(X) is 0 mm.
c. Assume the thickness of projection screen(X) is 30 mm.
All measurements are approximate and may vary from the actual sizes.
BenQ
recommends that if you intend to permanently install the projector, you should
physically
test the projection size and distance using the actual projector in situ
before you permanently
install it, so as to make allowance for this projector's
optical characteristics. This will help you
determine the exact mounting position so
that it best suits your installation location.
Screen size
Minimum
Ceiling height
Vertical
offset
Installation distance (D)
Diagonal (M)
Height
(h)
Width
(W)
H
a
V
X
b
=0 mm
(D=a)
X
c
=30 mm
(D=a+30 mm)
Inch
mm
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
80
2032
1077
1723
2288
150
85
115
85
2159
1144
1831
2365
160
112
142
90
2286
1212
1939
2443
170
139
169
95
2413
1279
2046
2520
180
166
196
100
2540
1346
2154
2598
190
194
224
105
2667
1414
2262
2675
200
221
251
110
2794
1481
2369
2752
211
248
278
115
2921
1548
2477
2830
221
275
305
119
3023
1602
2563
2892
229
297
327
Screen size
Minimum
Ceiling height
Vertical
offset
Installation distance (D)
Diagonal (M)
Height
(h)
Width
(W)
H
a
V
X
b
=0 mm
(D=a)
X
c
=30 mm
(D=a+30 mm)
Inch
mm
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
81
2057
1009
1793
2247
178
81
111
86
2184
1071
1904
2321
189
107
137
91
2311
1133
2015
2395
201
134
164
96
2438
1195
2125
2469
213
160
190
101
2565
1258
2236
2543
224
187
217
106
2692
1320
2347
2617
236
214
244
111
2819
1382
2457
2691
248
240
270
116
2946
1445
2568
2765
259
267
297
121
3073
1507
2679
2839
271
293
323