Sharp DT 400 DT-400 Operation Manual - Page 17

Setup Screen Size and Projection Distance The projection screen size varies according to the distance from the lens of the projector to the screen. Install the projector so that projected images are projected onto the screen at the optimum size by referring to the table below. Use the values in the table as a reference when installing the projector. Side View Screen H Lens center L When using a wide screen (16:9): In case of displaying the 16:9 picture on the whole of the 16:9 screen. Diag. [χ] 200" 150" 100" 80" 70" 60" 40" Picture (Screen) size Width Height 174" 98" 131" 74" 87" 49" 70" 39" 61" 34" 52" 29" 35" 20" Projection distance [L] Distance from the bottom of the image to Minimum [L1] Maximum [L2] the lens center [H] 17' 4" (5.29 m) 26' 0" (7.95 m) 3 9/32" (8.3 cm) 12' 11" (3.95 m) 19' 6" (5.95 m) 2 29/64" (6.2 cm) 8' 7" (2.62 m) 12' 11" (3.95 m) 1 21/32" (4.2 cm) 6' 9" (2.08 m) 10' 4" (3.15 m) 1 5/16" (3.3 cm) 5' 11" (1.82 m) 9' 0" (2.75 m) 1 5/32" (2.9 cm) 5' 1" (1.55 m) 7' 8" (2.35 m) 63/64" (2.5 cm) 3' 3" (1.01 m) 5' 1" (1.55 m) 43/64" (1.7 cm) χ: Picture size (diag.) (inches) L: Projection distance (ft/m) L1: Minimum projection distance (ft/m) L2: Maximum projection distance (ft/m) H: Distance from the bottom of the image to the lens center (in/cm) The formula for picture size and projection distance [Feet/inches] [m/cm] L1 (ft) = (0.02671χ-0.05334) / 0.3048 L1 (m) = 0.02671χ-0.05334 L2 (ft) = (0.03999χ-0.05215) / 0.3048 L2 (m) = 0.03999χ-0.05215 H (in) = 0.04151χ / 2.54 H (cm) = 0.04151χ When using a normal screen (4:3): In case of setting the 16:9 picture to the full horizontal width of the 4:3 screen. Diag. [χ] 200" 150" 100" 80" 70" 60" 40" Picture (Screen) size Width Height 160" 120" 120" 90" 80" 60" 64" 48" 56" 42" 48" 36" 32" 24" Projection distance [L] Distance from the bottom of the image to Minimum [L1] Maximum [L2] the lens center [H] 15' 10" (4.85 m) 23' 11" (7.29 m) 3" (7.62 cm) 11' 10" (3.62 m) 17' 10" (5.45 m) 2 17/64" (5.72 cm) 7' 10" (2.40 m) 11' 10" (3.62 m) 1 1/2" (3.81 cm) 6' 3" (1.91 m) 9' 5" (2.88 m) 1 13/64" (3.05 cm) 5' 5" (1.66 m) 8' 3" (2.52 m) 1 1/16" (2.67 cm) 4' 7" (1.42 m) 7' 0" (2.15 m) 57/64" (2.29 cm) 3' 0" (0.93 m) 4' 7" (1.42 m) 39/64" (1.52 cm) χ: Picture size (diag.) (inches) L: Projection distance (ft/m) L1: Minimum projection distance (ft/m) L2: Maximum projection distance (ft/m) H: Distance from the bottom of the image to the lens center (in/cm) The formula for picture size and projection distance [Feet/inches] [m/cm] L1 (ft) = (0.02452χ-0.05334) / 0.3048 L1 (m) = 0.02452χ-0.05334 L2 (ft) = (0.03671χ-0.05215) / 0.3048 L2 (m) = 0.03671χ-0.05215 H (in) = 0.03810χ / 2.54 H (cm) = 0.03810χ Note • There may be an error of ± 3% in the above values. -17