Setting up
ENGLISH -
23
Getting Started
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Projection distance for PT-CX300E
For 4:3 aspect ratio (unit: m)
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(There maybe some errors in the dimensions shown in the table below.)
Projection size
Throw
distance A
Throw
distance B
Projector top to
Bottom of the
screen
Projector bottom to
Bottom of the screen
Diagonal (SD) Height (SH) Width (SW)
1.524 (60")
0.914
1.219
0.523
0.188
0.182
0.257
1.778 (70")
1.067
1.422
0.617
0.282
0.225
0.300
2.032 (80")
1.219
1.626
0.711
0.376
0.268
0.343
2.286 (90")
1.372
1.829
0.805
0.470
0.311
0.386
For 16:10 aspect ratio (unit: m)
Q
(There maybe some errors in the dimensions shown in the table below.)
Projection size
Throw
distance A
Throw
distance B
Projector top to
Bottom of the
screen
Projector bottom to
Bottom of the screen
Diagonal (SD) Height (SH) Width (SW)
1.524 (60")
0.747
1.328
0.573
0.238
0.312
0.387
1.778 (70")
0.872
1.550
0.676
0.340
0.387
0.462
2.032 (80")
0.996
1.771
0.778
0.443
0.463
0.538
Calculation formulas for projection distance
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Any other projection distance can be obtained according to the screen dimensions (m) using the following
calculations.
The calculation result is with the "m" unit. (The calculated distance below may contain a certain error.) If the
screen dimensions are written as "SD",
For 16:9 aspect ratio
For 4:3 aspect ratio
Screen height (SH)
= SD × 0.6
= SD × 0.490
Screen width (SW)
= SD × 0.8
= SD × 0.872
Throw distance A
= 0.3700 × SD
-
0.04150
= 0.4037 × SD
-
0.04202
Attention
In order to maintain the performance of the lens, please set up the Throw diatance A between 0.523 m to 0.805 m.
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Note
The throw ratio is 0.44:1 when the projection size is 80 inch.
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