Relationship between Screen Size and Projecting Distance
Screen size at 4:3 | Projecting distance at (m) |
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aspect ratio |
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Max. zooming | Min. zooming | |||||||||
Type – W x D (cm) |
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40" 81 x 61 | 1.2 (3.9') | 2.0 (6.6') | 55 | (1.8') | 6 | (0.2') | 37" 81 x 46 | |||
50" | 102 x 76 | 1.5 (4.9') | 2.5 (8.2') | 69 | (2.3') | 8 (0.26') | 46" 102 x 57 | |||
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60" | 122 x 91 | 1.8 (5.9') | 2.9 (9.6') | 82 | (2.7') | 9 | (0.3') | 55" | 122 x 69 | |
70" 142 x 107 | 2.1 (6.9') | 3.4 (11.2') | 96 | (3.1') | 11 | (0.36') | 64" | 142 x 80 | ||
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80" 163 x 122 | 2.4 (7.9') | 3.9 (12.9') | 110 (3.6') | 12 (0.4') | 74" | 163 x 91 | ||||
90" 183 x 137 | 2.7 (8.9') | 4.4 (14.6') | 123 (4.0') | 14 | (0.46') | 83" 183 x 103 | ||||
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100" | 203 x 152 | 3.0 (9.8') | 4.9 (16.1') | 137 (4.5') | 15 | (0.49') | 91" 203 x 114 | |||
110" | 224 x 168 | 3.3 (10.8') | 5.4 (17.7') | 151 (5.0') | 17 (0.5') | 101" | 224 x 126 | |||
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120" | 244 x 183 | 3.6 (11.8') | 5.9 (19.4') | 165 (5.4') | 18 | (0.59') | 110" | 244 x 137 | ||
130" | 264 x 198 | 3.9 (12.8') | 6.4 (21') | 178 (5.8') | 20 | (0.66') | 119" 264 x 149 | |||
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140" | 284 x 213 | 4.2 (13.8') | 6.9 (22.6') | 192 (6.3') | 21 | (0.69') | 128" | 284 x 160 | ||
150" | 305 x 229 | 4.5 (14.8') | 7.4 (24.2') | 206 (6.8') | 23 | (0.75') | 138" | 305 x 171 | ||
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160" | 325 x 244 | 4.8 (15.5') | 7.9 (25.9') | 219 (7.2') | 24 | (0.79') | 147" | 325 x 183 | ||
170" | 345 x 259 | 5.1 (16.8') | 8.4 (27.4') | 233 (7.6') | 26 | (0.85') | 156" | 345 x 194 | ||
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180" | 366 x 274 | 5.4 (17.7') | 8.9 (29.2') | 247 (8.1') | 27 | (0.86') | 165" | 366 x 206 | ||
182" | 370 x 277 | 5.4 (17.7') | 9.0 (29.5') | 250 (8.2') | 28 (0.9') | 167" | 370 x 208 | |||
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190" | 386 x 290 | 5.6 (18.4') | – | 261 (8.6') | 29 | (0.95') | 174" | 386 x 217 | ||
200" | 406 x 305 | 5.9 (19.4') | – | 274 (9.0') | 30 | (0.98') | 184" | 406 x 229 | ||
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210" | 427 x 320 | 6.2 (20.3') | – | 288 (9.4') | 32 | (1.05') | 193" | 427 x 240 | ||
220" | 447 x 335 | 6.5 (21.3') | – | 302 (9.9') | 34 | (1.12') | 202" | 447 x 251 | ||
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230" | 467 x 351 | 6.8 (22.3') | – | 315 | (10.3') | 35 | (1.15') | 211" | 467 x 263 | |
240" | 488 x 366 | 7.1 (23.3') | – | 329 | (10.8') | 37 | (1.21') | 220" | 488 x 274 | |
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250" | 508 x 381 | 7.4 (24.3') | – | 343 | (11.3') | 38 | (1.25') | 233" | 508 x 286 | |
260" | 528 x 396 | 7.7 (25.3') | – | 357 | (11.7') | 40 | (1.31') | 239" | 528 x 297 | |
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270" | 549 x 411 | 8.0 (26.3') | – | 370 | (12.1') | 41 | (1.35') | 248" | 549 x 309 | |
280" | 569 x 427 | 8.3 (27.2') | – | 384 | (12.6') | 43 | (1.41') | 257" | 569 x 320 | |
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290" | 589 x 442 | 8.6 (28.2') | – | 398 | (13.1') | 44 | (1.44') | 266" | 589 x 331 | |
300" | 610 x 457 | 8.9 (29.2') | – | 411 | (13.5') | 46 | (1.51') | 276" | 610 x 343 | |
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APPENDIX
129
