InFocus LP 840/LP 850 User Manual page 44

Table 3: Projection sizes: Short Zoom lens (1.1 -1.51 throw ratio range)
Minimum Image
Diagonal
Distance Image
(feet/m) (feet/m)
Min Distance 1.67/0.51
2/0.6
5/1.5 4.17/1.27
10/3.0 8.33/2.54
20/6.1 16.67/5.08
25/7.6 20.83/6.35
Max Distance 25.42/7.75
30.5/9.3
The image offset range for the short throw lens is 10:1 (100%) to 1:1 (50%).
Maximum Image
Image Diagonal Image
Width Image Width
(feet/m) (feet/m) (feet/m)
1.33/0.41 2.27/0.69 1.82/0.55
3.33/1.02 5.68/1.73 4.55/1.39
6.67/2.03 11.36/3.46 9.09/2.77
13.33/4.06 22.73/6.93 18.18/5.54
16.67/5.08 28.41/8.66 22.73/6.93
20.33/6.2 34.66/10.56 27.73/8.45
Table 4: Projection sizes: Long Throw lens (2.2 - 4.2:1 throw ratio range)
Minimum Image
Diagonal
Distance Image
(feet/m) (feet/m)
Min Distance 1.28/0.39
4.2/1.3
10/3.0 3.05/0.93
20/6.1 6.1/1.86
30/9.1 9.15/2.79
40/12.2 12.2/3.72
60/18.3 18.29/5.58
Max Distance 25.37/7.73
60/18.3
The image offset range for the long throw lens is 10:1 (100%) to 1:1 (50%).
44
Maximum Image
Image Diagonal
Width Image Width
(feet/m) (feet/m) (feet/m)
1.02/.31 2.39/0.73 1.91/0.58
2.44/0.74 5.68/1.73 4.55/1.39
4.88/1.49 11.36/3.46 9.09/2.77
7.32/2.23 17.05/5.2 13.64/4.16
9.76/2.97 22.73/6.93 18.18/5.54
14.63/4.46 34.09/10.39 27.27/8.31
20.29/6.19 47.27/14.41 37.82/11.53
Image