NEC MT1065 MT1075/MT1065 UM - Page 17

Throw Distance and Screen Size The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation. Distance Chart Screen Height Screen Width Screen Diagonal Screen center (B) Screen Bottom Lens Center Throw Angle (Ͱ) Throw Distance (C) B = Vertical distance between lens center and screen center C = Throw distance α = Throw angle NOTE: Distances may vary +/-5%. Screen Size Diagonal inch 25 30 40 60 67 72 80 84 90 100 120 150 180 200 210 240 261 270 300 350 400 450 500 Width inch 20 24 32 48 54 58 64 67 72 80 96 120 144 160 168 192 209 216 240 280 320 360 400 Height inch 15 18 24 36 40 43 48 50 54 60 72 90 108 120 126 144 157 162 180 210 240 270 300 B inch 8.0 9.0 12.0 18.0 20.0 22.0 24.0 25.0 27.0 30.0 36.0 45.0 54.0 60.0 63.0 72.0 78.0 81.0 90.0 105.0 120.0 135.0 150.0 Screen Size Diagonal Width mm 635 762 1016 1524 1702 1829 2032 2134 2286 2540 3048 3810 4572 5080 5334 6096 6629 6858 7620 8890 10160 11430 12700 mm 508 610 813 1219 1361 1463 1626 1707 1829 2032 2438 3048 3658 4064 4267 4877 5304 5486 6096 7112 8128 9144 10160 Height mm 381 457 610 914 1021 1097 1219 1280 1372 1524 1829 2286 2743 3048 3200 3658 3978 4115 4572 5334 6096 6858 7620 B mm 191 229 305 457 511 549 610 640 686 762 914 1143 1372 1524 1600 1829 1989 2057 2286 2667 3048 3429 3810 C Wide - Tele inch --- - 39.6 35.1 - 47.8 47.4 - 64.4 72.1 - 97.6 80.7 - 109.2 86.9 - 117.5 96.8 - 130.8 101.7 - 137.4 109.1 - 147.4 121.4 - 164.0 146.1 - 197.2 183.1 - 246.9 220.1 - 296.7 244.8 - 329.9 257.1 - 346.5 294.1 - 396.3 320.0 - 431.1 331.1 - 446.0 368.1 - 495.8 429.8 - 578.7 491.5 - --- 553.2 - --- 614.8 - --- C Wide - Tele mm --- - 1005 891 - 1215 1204 - 1636 1831 - 2479 2050 - 2774 2207 - 2985 2458 - 3322 2583 - 3490 2771 - 3743 3084 - 4165 3711 - 5007 4651 - 6272 5591 - 7536 6217 - 8379 6531 - 8800 7471 - 10064 8129 - 10949 8410 - 11328 9350 - 12593 10917 - 14700 12484 - --- 14050 - --- 15617 - --- α Wide - Tele degree --- - 10.7 14.4 - 10.7 14.2 - 10.5 14.0 - 10.4 14.0 - 10.4 14.0 - 10.4 13.9 - 10.4 13.9 - 10.4 13.9 - 10.4 13.9 - 10.4 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.7 - 10.3 13.7 - 10.3 13.7 - 10.3 13.7 - 10.3 13.7 - --- 13.7 - --- 13.7 - --- α Wide - Tele degree --- - 10.7 14.4 - 10.7 14.2 - 10.5 14.0 - 10.4 14.0 - 10.4 14.0 - 10.4 13.9 - 10.4 13.9 - 10.4 13.9 - 10.4 13.9 - 10.4 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.8 - 10.3 13.7 - 10.3 13.7 - 10.3 13.7 - 10.3 13.7 - 10.3 13.7 - --- 13.7 - --- 13.7 - --- WARNING * Installing your projector on the ceiling must be done by a quali- fied technician. Contact your NEC dealer for more information. * Do not attempt to install the projector yourself. • To avoid premature lamp failure, do not tilt the front of the projector up or down by more than 75° from level. Tilting the front of the projector up or down from 15° to 75° might reduce lamp life by up to 25%. • Only use your projector on a solid, level surface. If the projector falls to the ground, you can be injured and the projector severely damaged. • Do not use the projector where temperatures vary greatly. The projector must be used at temperatures between 32˚F (0˚C) and 95˚F (35˚C). • Do not expose the projector to moisture, dust, or smoke. This will harm the screen image. • Ensure that you have adequate ventilation around your projector so heat can dissipate. Do not cover the vents on the side or the front of the projector. Reflecting the Image Using a mirror to reflect your projector's image enables you to enjoy a much larger image. Contact your NEC dealer if you need a mirror. If you're using a mirror and your image is inverted, use the MENU and SELECT buttons on your projector cabinet or ̆̄ buttons on your remote control to correct the orientation. (See page E-46.) E-13