Throw Distance
Roadster & Mirage S+/HD User Manual
D-3
020-100002-04 Rev. 1 (12-2008)
0.73:1 Fixed
Lens
Image
Diagonal
Image Width
(W)
Throw
Distance
(TD)
Throw Distance Formula
Inch
cm Inch cm Inch cm
TD = 0.7588 x W +12.29
67.8
172.1 59.1 150 57.1 145.0
Where W = image width (inch)
74.5
189.3 65.0 165 61.6 156.4
81.3
206.5 70.9 180 66.1 167.8
NOTE:
The TD formula is provided in
inches, but the chart shows values in cm
and inches for easy reference. Make sure
you are using the correct unit of
measurement when calculating throw
distance.
88.1
223.7 76.8 195 70.5 179.2
94.9
240.9 82.7 210 75.0 190.6
101.6
258.2 88.6 225 79.5 201.9
108.4
275.4 94.5 240 84.0 213.3
115.2
292.6 100.4 255 88.5 224.7
122.0
309.8 106.3 270 92.9 236.1
128.7
327.0 112.2 285 97.4 247.5
135.5
344.2 118.1 300 101.9 258.9
142.3
361.4 124.0 315 106.4 270.2
149.1
378.6 129.9 330 110.9 281.6
155.8
395.8 135.8 345 115.4 293.0
162.6
413.0 141.7 360 119.8 304.4
169.4
430.3 147.6 375 124.3 315.8
176.2
447.5 153.5 390 128.8 327.1
182.9
464.7 159.4 405 133.3 338.5
189.7
481.9 165.4 420 137.8 349.9
196.5
499.1 171.3 435 142.2 361.3
197.4
501.4 172.0 437 142.8 362.8
1.2:1 RP
Fixed Lens
Image
Diagonal
Image Width
(W)
Throw
Distance
(TD)
Throw Distance Formula
Inch
cm Inch cm Inch cm
TD = 1.2865 x W +3.94
54.2
137.7 47.2 120 64.7 164.4
Where W = image width (inch)
61.0
154.9 53.1 135 72.3 183.7
67.8
172.1 59.1 150 79.9 203.0
NOTE:
The TD formula is provided in
inches, but the chart shows values in cm
and inches for easy reference. Make sure
you are using the correct unit of
measurement when calculating throw
distance.
74.5
189.3 65.0 165 87.5 222.3
81.3
206.5 70.9 180 95.1 241.6
88.1
223.7 76.8 195 102.7 260.9
94.9
240.9 82.7 210 110.3 280.2
101.6
258.2 88.6 225 117.9 299.5
108.4
275.4 94.5 240 125.5 318.8
115.2
292.6 100.4 255 133.1 338.1
122.0
309.8 106.3 270 140.7 357.4
128.7
327.0 112.2 285 148.3 376.7
135.5
344.2 118.1 300 155.9 396.0
SXGA+ Lenses