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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
b
Lens center
The screen
Side view
Top view
a
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
(MP7640i: 800x600 pixels / MP7740i: 1024x768 pixels).
a:Distance from the projector to the screen (±10%)
b:Distance from the lens center to the bottom of the screen (±10%)
Screen size
[inch (m)]
a [inch (m)]
b
[inch (cm)]
Min. Max.
40 (1.0) 37 (0.9) 46 (1.2) 3 (8.7)
60 (1.5) 57 (1.5) 69 (1.8) 5 (13.1)
80 (2.0) 77 (1.9) 93 (2.4) 7 (17.4)
100 (2.5) 96 (2.4) 116 (2.9) 9 (21.8)
120 (3.0) 116 (2.9) 139 (3.5) 10 (26.1)
150 (3.8) 145 (3.7) 174 (4.4) 13 (32.7)
200 (5.0) 194 (4.9) 233 (5.9) 17 (43.5)
Screen size
[inch (cm)]
a [inch (m)]
b
[inch (cm)]
Min. Max.
30 (0.8) 30 (0.8) 38 (1.0) 0 (1)
40 (1.0) 41 (1.0) 50 (1.3) 0 (1)
60 (1.5) 62 (1.6) 76 (1.9) 1 (2)
80 (2.0) 83 (2.1) 101 (2.6) 1 (2)
100 (2.5) 105 (2.7) 127 (3.2) 1 (3)
120 (3.0) 126 (3.2) 152 (3.9) 1 (4)
150 (3.8) 158 (4.0) 190 (4.8) 2 (4)
200 (5.0) 212 (5.4) 254 (6.4) 2 (6)