8-ENGLISH
Projection relationships
The dimensional relationship between the screen and the projector is shown below.
■
Dimensional relationship diagram
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
Projected image height
SW
Projected image width
SD
Projected image size
z
Dimension for L1 (approximate values)
(Unit: m)
Projector model
Dimension for L1 (approximate value)
ET-D3LEW10
ET-D3LET30
ET-D3LET40
PT-RQ32K / PT-RZ31K / PT-RS30K
0.18
0.15
0.10
PT-RQ22K / PT-RZ21K / PT-RS20K
0.21
0.18
0.13
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 at least 500 mm (1 ft. 7 in.) from walls and objects.
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.).
■
Dimensional relationship
For details on the projection distance (L), refer to “Projected image size and Projection
distance” and “Projection distance formulas” in the Appendix.
SD
L (LW/LT)
L1
L1
L (LW/LT)
SW
SH
SH
SW
投写画面
スクリーン
スクリーン
Projected image
Screen
Screen
