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Panasonic PT-DW640EK User Manual

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Projectors
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Calculation of the projection distance
For a screen size different from the above, use the equation below to calculate the projection distance.
•
Distances calculated with the above equations will include a slight error.
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
(fixed focus) 
ET-DLE080
ET-DLE150
Supplied lens
ET-DLE250
ET-DLE350
ET-DLE450
ET-DLE055
Aspect ratio 16:9
Aspect ratio 16:10
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
(fixed focus) 
ET-DLE080
ET-DLE150
Supplied lens
ET-DLE250
ET-DLE350
ET-DLE450
ET-DLE055
Aspect ratio 4:3
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
minimum
maximum 
(fixed focus) 
ET-DLE080
ET-DLE150
Supplied lens
ET-DLE250
ET-DLE350
ET-DLE450
ET-DLE055
PT-DW640K/DW640S/DW640LK/DW640LS
As of November 2012
SFD12M015
L (m) = (diagonal screen size in inches) × 0.0188 - 0.0471
L (m) = (diagonal screen size in inches) × 0.0233 - 0.0442
L (m) = (diagonal screen size in inches) × 0.0309 - 0.0540
L (m) = (diagonal screen size in inches) × 0.0445 - 0.0498
L (m) = (diagonal screen size in inches) × 0.0408 - 0.0650
L (m) = (diagonal screen size in inches) × 0.0539 - 0.0638
L (m) = (diagonal screen size in inches) × 0.0539 - 0.0800
L (m) = (diagonal screen size in inches) × 0.0851 - 0.0792
L (m) = (diagonal screen size in inches) × 0.0850 - 0.1351
L (m) = (diagonal screen size in inches) × 0.1284 - 0.1346
L (m) = (diagonal screen size in inches) × 0.1286 - 0.3017
L (m) = (diagonal screen size in inches) × 0.2034 - 0.2991
L (m) = (diagonal screen size in inches) × 0.0189 - 0.0476
L (m) = (diagonal screen size in inches) × 0.0183 - 0.0471
L (m) = (diagonal screen size in inches) × 0.0227 - 0.0442
L (m) = (diagonal screen size in inches) × 0.0300 - 0.0540
L (m) = (diagonal screen size in inches) × 0.0433 - 0.0498
L (m) = (diagonal screen size in inches) × 0.0397 - 0.0650
L (m) = (diagonal screen size in inches) × 0.0524 - 0.0638
L (m) = (diagonal screen size in inches) × 0.0524 - 0.0800
L (m) = (diagonal screen size in inches) × 0.0828 - 0.0792
L (m) = (diagonal screen size in inches) × 0.0827 - 0.1351
L (m) = (diagonal screen size in inches) × 0.1249 - 0.1346
L (m) = (diagonal screen size in inches) × 0.1252 - 0.3017
L (m) = (diagonal screen size in inches) × 0.1979 - 0.2991
L (m) = (diagonal screen size in inches) × 0.0184 - 0.0476
L (m) = (diagonal screen size in inches) × 0.0207 - 0.0471
L (m) = (diagonal screen size in inches) × 0.0257 - 0.0442
L (m) = (diagonal screen size in inches) × 0.0340 - 0.0540
L (m) = (diagonal screen size in inches) × 0.0490 - 0.0498
L (m) = (diagonal screen size in inches) × 0.0450 - 0.0650
L (m) = (diagonal screen size in inches) × 0.0593 - 0.0638
L (m) = (diagonal screen size in inches) × 0.0594 - 0.0800
L (m) = (diagonal screen size in inches) × 0.0938 - 0.0792
L (m) = (diagonal screen size in inches) × 0.0936 - 0.1351
L (m) = (diagonal screen size in inches) × 0.1414 - 0.1346
L (m) = (diagonal screen size in inches) × 0.1417 - 0.3017
L (m) = (diagonal screen size in inches) × 0.2240 - 0.2991
L (m) = (diagonal screen size in inches) × 0.0208 - 0.0476