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7
Refer to the illustrations and tables below to determine the screen size and
projection distance.
Adjusting the Screen Size and Projection Distance
Top view
a
c
b
Lens center
The screen
Side view
Top view
a
c
b
Lens center
The screen
Side view
If 4:3 aspect ratio
If 16:9 aspect ratio
4
3
9
16
The values shown in the table are calculated for a full size screen
(S40: 800x600 pixels/X40: 1024x768 pixels).
a:Distance from the projector to the screen (±10%)
b:Distance from the lens center to the bottom of the screen (±10%)
c:Distance from the lens center to the top of the screen (±10%)
Screen Size [inch (m)]
a [inch (m)]
b
[inch (cm)]
c
[inch (cm)]
Min. Max.
30 (0.8) 35 (0.9) 42 (1.1) 1 (2) 17 (44)
40 (1.0) 47 (1.2) 56 (1.4) 1 (3) 23 (58)
50 (1.3) 59 (1.5) 71 (1.8) 1 (4) 29 (73)
60 (1.5) 71 (1.8) 85 (2.2) 2 (4) 34 (87)
70 (1.8) 83 (2.1)
100 (2.5)
2 (5) 40 (102)
80 (2.0) 95 (2.4)
114 (2.9)
2 (6) 46 (116)
90 (2.3)
107 (2.7) 129 (3.3)
3 (7) 51 (131)
100 (2.5)
119 (3.0) 143 (3.6)
3 (7) 57 (145)
120 (3.0)
143 (3.6) 172 (4.4)
3 (9) 69 (174)
150 (3.8)
180 (4.6) 216 (5.5)
4 (11) 86 (218)
200 (5.0)
240 (6.1) 288 (7.3)
6 (15)
114 (290)
250 (6.3)
300 (7.6) 361 (9.2)
7 (18)
143 (363)
300 (7.5)
360 (9.2)
433 (11.0)
9 (22)
171 (435)
Screen Size [inch (m)]
a [inch (m)]
b
[inch (cm)]
c
[inch (cm)]
Min. Max.
30 (0.8) 38 (1.0) 46 (1.2) 2 (4) 16 (41)
40 (1.0) 51 (1.3) 61 (1.6) 2 (5) 22 (55)
50 (1.3) 64 (1.6) 77 (2.0) 3 (6) 27 (69)
60 (1.5) 77 (2.0) 93 (2.4) 3 (8) 32 (82)
70 (1.8) 90 (2.3)
109 (2.8)
4 (9) 38 (96)
80 (2.0)
104 (2.6) 125 (3.2)
4 (10) 43 (110)
90 (2.3)
117 (3.0) 140 (3.6)
5 (12) 49 (124)
100 (2.5)
130 (3.3) 156 (4.0)
5 (13) 54 (137)
120 (3.0)
156 (4.0) 188 (4.8)
6 (15) 65 (165)
150 (3.8)
196 (5.0) 235 (6.0)
8 (19) 81 (206)
200 (5.0)
261 (6.6) 314 (8.0)
10 (26)
108 (275)
250 (6.3)
327 (8.3)
393 (10.0)
13 (32)
135 (343)
300 (7.5)
393 (10.0)
472 (12.0)
15 (39)
162 (412)