ENGLISH-7
Projection relationships
The dimensional relationship between the screen and the projector is shown below.
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Dimensional relationship diagram
L (LW/LT)
L (LW/LT)
SW
SH
H
SH
SW
SD
L1
L1
Screen
Projected image
Note
z
This diagram assumes that the size and position of the projected image will be adjusted so
that the image fills the entire screen.
z
This illustration is not drawn to scale.
L
Projection distance
LW
Minimum distance
LT
Maximum distance
L1
Lens protrusion dimension
SH
Image height
H
Distance from the lens center to the lower edge of the
projected image
SW
Image width
SD
Projected image size
z
L1 dimensions (approximate values)
(Unit: m)
Projector model
ET-ELW21 ET-ELW20 ET-ELT22
ET-ELT23
PT-MZ770 / PT-MW730 / PT-MZ670 /
PT-MW630 / PT-MZ570 / PT-MW530
0.005
0.035
0.036
0.032
PT-EZ770 / PT-EW730 / PT-EX800
0.050
0.080
0.081
0.080
Note
z
The illustrations of projectors in this manual are for informational purposes only and do not
represent a specific projector model. Configurations may vary with the model.
