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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.
L
SH
SW
H
SD
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
4:3 aspect ratio
size
Projection
Screen
distance
diagonal
(SD)
(L)
1.27 (50")
0.55
1.52 (60")
0.67
1.78 (70")
0.79
2.03 (80")
0.91
2.29 (90")
1.02
2.54 (100")
1.14
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.
Screen height (SH)
Screen width (SW)
Projection distance (L)
28 - ENGLISH
Chapter 2 Getting Started - Setting up
Projected image
SW
Projection distance (m)
Image height (m)
Image width (m)
Distance from the center of lens to the image lower end (m)
Projected image size (m)
Projection
Height position
(H)
0.108
0.129
0.151
0.172
0.194
0.215
4:3 aspect ratio
= 0.6 × SD
= 0.8 × SD
= 0.4625 × SD - 0.0339
Screen
L
L
Screen
16:9 aspect ratio
Height position
distance
(H)
(L)
0.50
0.145
0.60
0.174
0.71
0.203
0.82
0.232
0.92
0.262
1.03
0.291
16:9 aspect ratio
= 0.490 × SD
= 0.872 × SD
= 0.4188 × SD - 0.0339
16:10 aspect ratio
Projection
Height position
distance
(H)
(L)
0.48
0.108
0.59
0.129
0.69
0.151
0.80
0.172
0.90
0.194
1.00
0.215
16:10 aspect ratio
= 0.530 × SD
= 0.848 × SD
= 0.4085 × SD - 0.0339
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