ENGLISH - 27
Screen size and throw distance
Refer to the screen size and projection distances to install the projector. Image size and image position can be adjusted in
accordance with the screen size and screen position.
Projected image
SH
SW
SD
SH
Screen
L
Screen
L
SW
H
L
Projection distance (m)
SH
Image height (m)
SW
Image width (m)
H
Distance from the center of lens to the image lower end (m)
SD
Projected image size (m)
Attention
f
Before installing, please read “Precautions for use” (
x
page 14).
Projection distance
All measurements below are approximate and may differ slightly from the actual measurements. (Unit: m)
Projection
size
4:3 aspect ratio
16:9 aspect ratio
16:10 aspect ratio
Screen
diagonal
(SD)
Projection
distance
(L)
Height position
(H)
Projection
distance
(L)
Height position
(H)
Projection
distance
(L)
Height position
(H)
1.27 (50")
0.55
0.038
0.50
0.133
0.49
0.102
1.52 (60")
0.67
0.046
0.60
0.160
0.59
0.122
1.78 (70")
0.79
0.054
0.71
0.187
0.69
0.143
2.03 (80")
0.91
0.061
0.82
0.213
0.80
0.163
2.29 (90")
1.02
0.069
0.92
0.240
0.90
0.183
2.54 (100")
1.14
0.077
1.03
0.268
1.00
0.204
Projection distance formulas
To use a screen size not listed in this manual, check the screen size SD (m) and use the respective formula to calculate
projection distance.
The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)
If you want to calculate the projection distance with projected image size SD (unit: inch) by substituting, please assign 0.0254
times to the SD value.
4:3 aspect ratio
16:9 aspect ratio
16:10 aspect ratio
Screen height (SH)
= 0.6 × SD
= 0.490 × SD
= 0.530 × SD
Screen width (SW)
= 0.8 × SD
= 0.872 × SD
= 0.848 × SD
Projection distance (L)
= 0.4625 × SD - 0.0339
= 0.4188 × SD - 0.0339
= 0.4085 × SD - 0.0339
Chapter 2 Getting Started - Setting up
