8-ENGLISH
Projection relationships
The dimensional relationship between the screen and the projector is shown below.
■
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
H
Distance from the lens center to
the lower edge of the projected
image
LW
Minimum distance
SH
Projected image height
LT
Maximum distance
SW
Projected image width
L1
Lens protrusion dimension
SD
Projected image size
z
Dimension for L1 (approximate values)
(Unit: m)
Projector model
ET-C1W300 ET-C1W400 ET-C1W500 ET-C1S600 ET-C1T700
PT-REQ12 / PT-REQ10 /
PT-REQ80
0.155
0.149
0.144
0.110
0.160
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.
Attention
z
To prevent obstruction of the intake and exhaust vents, install the projector with a clearance
from walls and objects. For details about the required distance from surrounding walls and
objects, refer to the operating instructions for your projector.
If you are installing the projector in a sealed space, be sure to provide additional air conditioning
equipment and ventilation equipment. Insufficient ventilation will result in an accumulation of
heat and may activate the projector's protection circuit.
z
Avoid setting up in places which are subject to sudden temperature changes, such as near
an air conditioner or lighting equipment (studio lamps, etc.).
