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3M™ Multimedia Projector MP7650/7750
Adjusting the Screen Size and Projection Distance
Refer to the illustrations and tables below to determine the screen size and
projection distance.
The values shown in the table are calculated for a full size screen
(MP7650: 800x600 pixels / MP7750: 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%)
The screen
Lens center
c
b
a
The screen
c
Lens center
b
a
Top view
If 4:3 aspect ratio
Screen Size [inch (m)]
Side view
Top view
If 16:9 aspect ratio
Screen Size [inch (m)]
Side view
© 3M 2002. All Rights Reserved.
4
3
a [inch (m)]
Min.
30 (0.8)
35 (0.9) 42 (1.1)
40 (1.0)
47 (1.2) 56 (1.4)
50 (1.3)
59 (1.5) 71 (1.8)
60 (1.5)
71 (1.8) 85 (2.2)
70 (1.8)
83 (2.1) 100 (2.5)
80 (2.0)
95 (2.4) 114 (2.9)
90 (2.3)
107 (2.7) 129 (3.3)
100 (2.5)
119 (3.0) 143 (3.6)
120 (3.0)
143 (3.6) 172 (4.4)
150 (3.8)
180 (4.6) 216 (5.5)
200 (5.0)
240 (6.1) 288 (7.3)
250 (6.3)
300 (7.6) 361 (9.2)
300 (7.5)
360 (9.2) 433 (11.0)
16
9
a [inch (m)]
Min.
30 (0.8)
38 (1.0) 46 (1.2)
40 (1.0)
51 (1.3) 61 (1.6)
50 (1.3)
64 (1.6) 77 (2.0)
60 (1.5)
77 (2.0) 93 (2.4)
70 (1.8)
90 (2.3) 109 (2.8)
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)
b
c
[inch (cm)]
[inch (cm)]
Max.
1 (2)
17 (44)
1 (3)
23 (58)
1 (4)
29 (73)
2 (4)
34 (87)
2 (5)
40 (102)
2 (6)
46 (116)
3 (7)
51 (131)
3 (7)
57 (145)
3 (9)
69 (174)
4 (11) 86 (218)
6 (15) 114 (290)
7 (18) 143 (363)
9 (22) 171 (435)
b
c
[inch (cm)]
[inch (cm)]
Max.
2 (4)
16 (41)
2 (5)
22 (55)
3 (6)
27 (69)
3 (8)
32 (82)
4 (9)
38 (96)
7
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