Calculation formula, Projectors – Panasonic PT-DW5100L User Manual
Page 8
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PT-DW5100/DW5100L
DLP
®
Projectors
As of May 2007
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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.
Aspect ratio 15:9
minimum
L (m) = (diagonal screen size in inches) x 0.0300 - 0.0452
maximum
L (m) = (diagonal screen size in inches) x 0.0404 - 0.0478
minimum
L (m) = (diagonal screen size in inches) x 0.0402 - 0.0650
maximum
L (m) = (diagonal screen size in inches) x 0.0530 - 0.0638
minimum
L (m) = (diagonal screen size in inches) x 0.0547 - 0.0657
maximum
L (m) = (diagonal screen size in inches) x 0.0895 - 0.0758
minimum
L (m) = (diagonal screen size in inches) x 0.0786 - 0.1062
maximum
L (m) = (diagonal screen size in inches) x 0.1026 - 0.1056
minimum
L (m) = (diagonal screen size in inches) x 0.1044 - 0.1374
maximum
L (m) = (diagonal screen size in inches) x 0.1951 - 0.1352
(fixed focus)
L (m) = (diagonal screen size in inches) x 0.0180 - 0.0361
ET-DLE100
Supplied lens
ET-DLE200
ET-DLE310
ET-DLE410
ET-DLE050
Aspect ratio 16:9
minimum
L (m) = (diagonal screen size in inches) x 0.0305 - 0.0452
maximum
L (m) = (diagonal screen size in inches) x 0.0411 - 0.0478
minimum
L (m) = (diagonal screen size in inches) x 0.0409 - 0.0650
maximum
L (m) = (diagonal screen size in inches) x 0.0539 - 0.0638
minimum
L (m) = (diagonal screen size in inches) x 0.0556 - 0.0657
maximum
L (m) = (diagonal screen size in inches) x 0.0910 - 0.0758
minimum
L (m) = (diagonal screen size in inches) x 0.0799 - 0.1062
maximum
L (m) = (diagonal screen size in inches) x 0.1043 - 0.1056
minimum
L (m) = (diagonal screen size in inches) x 0.1061 - 0.1374
maximum
L (m) = (diagonal screen size in inches) x 0.1983 - 0.1352
(fixed focus)
L (m) = (diagonal screen size in inches) x 0.0183 - 0.0361
ET-DLE100
Supplied lens
ET-DLE200
ET-DLE310
ET-DLE410
ET-DLE050
•
Distances calculated with the above equations will include a slight error.
•
When an SXGA signal is input, the left and right edges of the image are blanked, and the image is projected at a screen aspect ratio of 5:4.
•
The brightness varies depending on the zoom setting.