Setting up
JJProjection distance for
(All measurements below are approximate and may differ slightly from the actual measurements.)
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| 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") | 0.9 m(2.91') | 1.1 m(3.50') | 1.0 m(3.17') | 1.2 m(3.83') |
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| 1.02 m(40") | 1.2 m(3.90') | 1.4 m(4.70') | 1.3 m(4.25') | 1.6 m(5.13') |
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| 1.27 m(50") | 1.5 m(4.89') | 1.8 m(5.89') | 1.6 m(5.34') | 2.0 m(6.43') |
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| 1.52 m(60") | 1.8 m(5.89') | 2.2 m(7.09') | 2.0 m(6.42') | 2.4 m(7.74') |
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| 1.78 m(70") | 2.1 m(6.88') | 2.5 m(8.28') | 2.3 m(7.50') | 2.8 m(9.04') |
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| 2.03 m(80") | 2.4 m(7.87') | 2.9 m(9.47') | 2.6 m(8.58') | 3.2 m(10.34') |
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| 2.29 m(90") | 2.7 m(8.87') | 3.3 m(10.67') | 2.9 m(9.67') | 3.5 m(11.64') |
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Getting |
| 2.54 m(100") | 3.0 m(9.86') | 3.6 m(11.86') | 3.3 m(10.75') | 3.9 m(12.94') |
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| 3.05 m(120") | 3.6 m(11.85') | 4.3 m(14.25') | 3.9 m(12.91') | 4.7 m(15.55') | |
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Started |
| 3.81 m(150") | 4.5 m(14.83') | 5.4 m(17.83') | 4.9 m(16.16') | 5.9 m(19.45') |
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| 5.08 m(200") | 6.0 m(19.80') | 7.3 m(23.80') | 6.6 m(21.57') | 7.9 m(25.97') | |
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| 6.35 m(250") | 7.6 m(24.77') | 9.1 m(29.77') | 8.2 m(26.98') | 9.9 m(32.48') |
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| 7.62 m(300") | 9.1 m(29.74') | 10.9 m(35.74') | 9.9 m(32.40') | 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) | = 1.1941 × SD(m) - 23.27 | = 1.301 × SD(m) - 23.27 |
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Maximum distance (LT) | = 1.4335 × SD(m) - 23.67 | = 1.561 × SD(m) - 23.67 |
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24 - ENGLISH