Setting up
JJProjection distance for
(All measurements below are approximate and may differ slightly from the actual measurements.)
Projection size | For 4:3 aspect ratio | For 16:9 aspect ratio |
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Screen diagonal (SD) | Minimum distance | Maximum distance | Minimum distance | Maximum distance |
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(LW) | (LT) | (LW) | (LT) |
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0.76 m(30") | 1.0 m(3.32') | 1.2 m(4.00') | 1.1 m(3.62') | 1.3 m(4.36') |
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1.02 m(40") | 1.4 m(4.45') | 1.6 m(5.35') | 1.5 m(4.86') | 1.8 m(5.84') |
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1.27 m(50") | 1.7 m(5.58') | 2.0 m(6.71') | 1.9 m(6.09') | 2.2 m(7.32') |
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1.52 m(60") | 2.0 m(6.71') | 2.5 m(8.07') | 2.2 m(7.32') | 2.7 m(8.80') |
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1.78 m(70") | 2.4 m(7.84') | 2.9 m(9.43') | 2.6 m(8.56') | 3.1 m(10.28') |
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2.03 m(80") | 2.7 m(8.98') | 3.3 m(10.79') | 3.0 m(9.79') | 3.6 m(11.76') |
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2.29 m(90") | 3.1 m(10.11') | 3.7 m(12.14') | 3.4 m(11.02') | 4.0 m(13.24') |
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2.54 m(100") | 3.4 m(11.24') | 4.1 m(13.50') | 3.7 m(12.26') | 4.5 m(14.72') |
| Started |
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3.05 m(120") | 4.1 m(13.50') | 4.9 m(16.22') | 4.5 m(14.72') | 5.4 m(17.67') |
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3.81 m(150") | 5.2 m(16.90') | 6.2 m(20.29') | 5.6 m(18.42') | 6.7 m(22.11') |
| Getting |
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5.08 m(200") | 6.9 m(22.56') | 8.3 m(27.08') | 7.5 m(24.59') | 9.0 m(29.51') |
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6.35 m(250") | 8.6m(28.21') | 10.3 m(33.87') | 9.4 m(30.76') | 11.0 m(36.08') |
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7.62 m(300") | 10.3 m(33.87') | 11.0m(36.08') | 11.3 m(36.92') | 11.0 m(36.08') |
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Any other projection distance can be obtained according to the screen dimensions (m) using the following calculations.
The distance is shown in units of meters. (The calculated distance may contain a certain error.) If the screen dimensions are written as “SD",
| For 4:3 aspect ratio | For 16:9 aspect ratio |
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Screen height (SH) | = SD(m) × 0.6 | = SD(m) × 0.490 |
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Screen width (SW) | = SD(m) × 0.8 | = SD(m) × 0.872 |
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Minimum distance (LW) | = 1.357 × SD(m) - 23.27 | = 1.478 × SD(m) - 23.27 |
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Maximum distance (LT) | = 1.629 × SD(m) - 23.67 | = 1.775 × SD(m) - 23.67 |
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ENGLISH - 23