NEC NP-UM351W User's Manual - Page 115

6. Installation and Connections [UM351W/UM301W] The further your projector is from the screen or wall, the larger the image. The minimum size the image can be is 58" (1473 mm) measured diagonally when the projector is 4 inches (105 mm) between the screen side of the projector and the wall or screen. The largest the image can be is 110" (2794 mm) when the projector is 20 inches (510 mm) between the screen side of the projector and the wall or screen. [UM351W/UM301W] Diagonal inch mm 58 1473 60 1524 70 1778 80 2032 90 2286 100 2540 110 2794 Screen Size Width inch mm 49 1249 51 1292 59 1508 68 1723 76 1939 85 2154 93 2369 Height inch mm 31 781 32 808 37 942 42 1077 48 1212 53 1346 58 1481 H1 inch mm 9 239 10 244 11 267 11 291 12 315 13 339 14 363 H2 inch mm 40 1020 41 1051 48 1210 54 1368 60 1527 66 1685 73 1843 L1 L2 wide inch mm inch mm 4 105 18 448 5 120 18 464 8 198 21 542 11 276 24 620 14 354 27 698 17 432 31 776 20 510 34 854 Screen height Screen size (inch) Screen size (diagonal) 110 Screen width Center of screen 100 90 H2 L1 L2 80 70 H1 L1 60 L2 Projector bottom 58 0 10 20 30 40 50 60 70 80 90 Screen side of projector Throw distance L1/L2 (cm) Center of projection window 104