47
Projection Distance and Lens Shift Range
Others
Expression#1 Unit: m (inches)Expression#2Projection distance (VPL-CW275)Unit: m (inches)Projection distance formula (VPL-CW275)D: Projected image size (Diagonal)H: Distance between the bottom edge of the image and the center of the lensExpression#1 Unit: m (inches)Expression#2Projection Distance L (min.) Projection Distance L (max.)
L=0.027010 × D – 0.0490
(L=1.063369 × D – 1.9300)
L=0.039363 × D – 0.0482
(L=1.549709 × D – 1.8982)
Height H from lens center to bottom of screen
H=-0.00165 × D+0.00000 (H=-0.06502 × D+0.00000)
Projected image size Throw Distance L Height H from lens center
to bottom of screen
Diagonal D Width × Height
80 inch (2.03 m) 1.72
×
1.08 (68
×
43) 2.22
–
3.25 (88
–
128) 0.00 (0)
100 inch (2.54 m) 2.15
×
1.35 (85
×
53) 2.79
–
4.08 (110
–
160) 0.00 (0)
120 inch (3.05 m) 2.58
×
1.62 (102
×
64) 3.36
–
4.91 (133
–
193) 0.00 (0)
150 inch (3.81 m) 3.23
×
2.02 (127
×
79) 4.21
–
6.15 (166
–
242) 0.00 (0)
200 inch (5.08 m) 4.31
×
2.69 (170
×
106) 5.63
–
8.21 (222
–
323) 0.00 (0)
Projection Distance L (min.) Projection Distance L (max.)
L=0.028357 × D – 0.0490
(L=1.116434 × D – 1.9300)
L=0.041327 × D – 0.0482
(L=1.627044 × D – 1.8982)
Height H from lens center to bottom of screen
H=0.00000
×
D+0.00000 (H=0.00000
×
D+0.00000)