Chapter 2
Getting Started — Setting up
ENGLISH - 41
Projected image and throw distance
Install the projector referring to the projected image size and projection distance. Image size and image position
can be adjusted in accordance with the screen size and screen position. When the Fixed-focus Lens (Model No.:
ET-D75LE95, ET-D75LE90) is used, the projection relation between the screen and the projector differs from that
of other lenses. Refer to “Fixed-focus Lens (Model No.: ET-D75LE95, ET-D75LE90)” (
x
page 42) for details.
f
Following illustration is prepared on the assumption that the projected image size and position have been
aligned to fit full in the screen.
SD
L (LW/LT)
L1
L1
L (LW/LT)
SW
SH
SH
SW
Projected image
Screen
Screen
(Unit: m)
L (LW/LT)
*1
Projection distance
L1
Lens protrusion dimension
SH
Projected image height
SW
Projected image width
SD
Projected image size
*1
LW: Minimum projection distance when the Zoom Lens is used
LT: Maximum projection distance when the Zoom Lens is used
(Unit: m)
Projection lens Model No.
Dimension for L1 (approximate value)
ET-D75LE6
0.182
ET-D75LE8
0.232
ET-D75LE10
0.095
ET-D75LE20
0.091
ET-D75LE30
0.091
ET-D75LE40
0.094
ET-D75LE50
0.173
