Toshiba TDP-XP1 User Manual - Page 22

Placement (Continued) Projection Distance and Size Use the figures, tables, and formulas below to determine the projection size and projection distance. (Projection sizes are approximate values for full-size picture with no keystone adjustment.) As seen from above Screen 90 As seen from the side Lens center H 90 a projection size (inches) 23.9 30 40 60 80 100 150 200 250 300 Wide distance (m) (feet) --- --- 1.15 3.77 1.56 5.10 2.37 7.77 3.18 10.43 3.98 13.07 5.99 19.64 7.97 26.15 9.93 32.59 11.88 38.97 Tele distance (m) (feet) 1.00 3.28 1.28 4.19 1.73 5.66 2.62 8.60 3.52 11.53 4.41 14.46 6.62 21.72 8.82 28.93 10.99 36.07 --- --- Offset height (H) (cm) (feet) 5.5 0.18 6.9 0.23 9.1 0.30 13.7 0.45 18.3 0.60 22.9 0.75 34.3 1.13 45.7 1.50 57.2 1.88 68.6 2.25 a is the distance (cm, feet) between the lens and the screen, and corresponds to a range of 1 m to 11.88m (3.28 ft. to 38.97 ft.). H is the height (cm, feet) from the image bottom to the center of the lens. min length a(cm)= -0.000381 x projection size (inches)2 + 4.1 x projection size (inches) - 7.8 a(feet)= -0.0000125 x projection size (inches)2 + 0.135 x projection size (inches) - 0.256 max length a(cm)= -0.000365 x projection size (inches)2 + 4.52 x projection size (inches) - 7.7 a(feet)= -0.000012 x projection size (inches)2 + 0.148 x projection size (inches) - 0.253 height H(cm)= projection size (inches) x 0.2286 H(feet)= projection size (inches) x 0.0075 22