A.3 Projector-to-Screen Distance
Example of the Multimedia projector and screen installation. Determine picture size and projection distance as shown below.
| Screen Size |
| Distance to Screen | |
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Width | Height | Diagonal | Minimum | Maximum |
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81 cm | 61 cm | 102 cm | 145 cm | 226 cm |
(32 in.) | (24 in.) | (40 in.) | (4.7 ft) | (7.4 ft) |
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130 cm | 91 cm | 152 cm | 226 cm | 347 cm |
(48 in.) | (36 in.) | (60 in.) | (7.4 ft) | (11.4 ft) |
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180 cm | 122 cm | 203 cm | 306 cm | 468 cm |
(64 in.) | (48 in.) | (80 in.) | (10 ft) | (15.3 ft) |
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230 cm | 152 cm | 254 cm | 386 cm | 588 cm |
(80 in.) | (60 in.) | (100 in.) | (12.7 ft) | (19.3 ft) |
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280 cm | 183 cm | 305 cm | 467 cm | 709 cm |
(96 in.) | (72 in.) | (120 in.) | (15.3 ft) | (23.3 ft) |
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354 cm | 229 cm | 381 cm | 587 cm | 890 cm |
(120 in.) | (90 in) | (150 in.) | (19.3 ft) | (29.2 ft) |
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179 cm | 305 cm | 508 cm | 788 cm | 1193 cm |
(160 in.) | (120 in.) | (200 in.) | (25.8 ft) | (39.1 ft) |
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728 cm | 457 cm | 762 cm | 1190 cm | 1197 cm |
(287 in.) | (180 in.) | (300 in.) | (39 ft) | (58.9 ft) |
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✔Note
These sizes are ± 1%. This is due to variations in the manufacture of the lens. If you are close to one of the endpoints you should verify with your unit that the image is the proper size at the proper distance.
The image can be shifted up or down without distortion (keystoning) by turning the Image Shift Control knob on the top of the projector.
Image Shift Control
O I
© 3M 1999 | 3M™ Multimedia Projector MP8780 |
Shift Up
Normal
Shift Down (Ceiling Mount)
TECHNICAL
