NEC VT45K User Manual - Page 26

Ceiling Installation Screen Bottom/ D Lens Center B Screen Center Projector feet 44.6 mm / 1.76" α Throw Distance C B = Vertical distance between lens center and screen center C = Throw distance D = Vertical distance between lens center and top of screen α = Throw angle Lens Offset 5.4mm Diagonal inch mm 25 635 30 762 40 1016 60 1524 67 1702 72 1829 80 2032 84 2134 90 2286 100 2540 120 3048 150 3810 180 4572 200 5080 210 5334 240 6096 261 6629 270 6858 300 7620 Screen Size Width inch mm 20 508 24 610 32 813 48 1219 54 1361 58 1463 64 1626 67 1707 72 1829 80 2032 96 2438 120 3048 144 3658 160 4064 168 4267 192 4877 209 5304 216 5486 240 6096 Height inch mm 15 381 18 457 24 610 36 914 40 1021 43 1097 48 1219 50 1280 54 1372 60 1524 72 1829 90 2286 108 2743 120 3048 126 3200 144 3658 157 3978 162 4115 180 4572 B inch 8 9 12 18 20 22 24 25 27 30 36 45 54 60 63 72 78 81 90 mm 191 229 305 457 511 549 610 640 686 762 914 1143 1372 1524 1600 1829 1989 2057 2286 B = Vertical distance between lens center and screen center C = Throw distance D = Vertical distance between lens center and top of screen α = Throw angle C wide inch mm - 36 910 - 43 1100 - 58 1470 - 87 2220 - 98 2490 - 105 2670 - 117 2970 - 123 3120 - 132 3350 - 147 3730 - 176 4480 - 220 5600 - 265 6730 - 294 7480 - 309 7860 - 354 8980 - 385 9770 - 398 10110 - 443 11240 - tele inch mm 39 1000 48 1210 64 1620 96 2450 108 2740 116 2940 129 3270 135 3440 145 3690 161 4100 194 4930 243 6170 292 7410 324 8240 341 8650 389 9890 424 10760 438 11130 487 12370 D α wide inch mm degree - 0 0 11.8 - 0 0 11.7 - 0 0 11.7 - 0 0 11.6 - 0 0 11.6 - 0 0 11.6 - 0 0 11.6 - 0 0 11.6 - 0 0 11.6 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - 0 0 11.5 - tele degree 10.8 10.7 10.7 10.6 10.6 10.6 10.6 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 WARNING • Installing your projector on the ceiling must be done by a qualified technician. Contact your NEC dealer for more information. * Do not attempt to install the projector yourself. • 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. If your projector is mounted on the ceiling and your image is upside down, use the "Menu" and "Select" buttons on your projector cabinet or LM buttons on your remote control to correct the orientation. (See page E-35.) 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 LM buttons on your remote control to correct the orientation. (See page E-35.) E-18