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Projection Distance
Projection distance table (VPL-EX221)
Unit: m (inches)
Projection distance formula (VPL-EX221)
D: Projected image size (Diagonal)
H: Height H from center of lens to edge of screen
Expression#1(Projection distance L) Unit: m (inches)
Expression#2(Height H from center of lens to edge of screen)
Projected image size
Projection
Distance L
Height H from center of lens to edge of
screen
Diagonal D Width × Height
Minimum Projection
Distance L
Maximum Projection
Distance L
80 inch (2.03m) 1.63 × 1.22
(64 × 48)
2.41-2.88
(95-113)
-0.20 (-8) -0.20 (-8)
100 inch (2.54m) 2.03 × 1.52
(80 × 60)
3.02-3.60
(119-142)
-0.25 (-10) -0.25 (-10)
120 inch (3.05m) 2.44 × 1.83
(96 × 72)
3.63-4.33
(143-170)
-0.30 (-12) -0.30 (-12)
150 inch (3.81m) 3.05 × 2.29
(120 × 90)
4.54-5.42
(179-213)
-0.38 (-15) -0.38 (-15)
200 inch (5.08m) 4.06 × 3.05
(160 × 120)
6.06-7.24
(239-285)
-0.51 (-20) -0.51 (-20)
Minimum Projection Distance L Maximum Projection Distance L
L=0.030411 × D-0.0233
(L=1.197284 × D-0.9154)
L=0.036318 × D-0.0234
(L=1.429835 × D-0.9228)
Height H from center of lens to edge of screen
Minimum Projection Distance L Maximum Projection Distance L
H=-0.00254 × D
(H=-0.10000 × D)
H=-0.00254 × D
(H=-0.10000 × D)