Advertisement
Visual Systems Division
Technical Bulletin
LT85 Throw Distance Data
Desktop and Ceiling Mount
Projection Distance and Screen Size for Desktop
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Desktop Setup
Screen Ctr
B
D
Lens Ctr
Distance Chart
Screen Size
Diagonal
Width (H)
40"
60"
67"
72"
84"
90"
100"
120"
150"
180"
Note:
For screen sizes of 36 to 200 inches not indicated on the projection tables, use the formulas on page 1.
Screen Bottom
1.5"
Height (E)
32"
24"
48"
36"
53.6"
40.2"
57.6"
43.2"
67.2"
50.4"
72"
54"
80"
60"
96"
72"
120"
90"
144"
108"
C
Throw Distance
B
C
16.7"
54.7"
25.1"
81.9"
28.0"
90.8"
30.1"
97.6"
35.1"
113.8"
37.6"
122.0"
41.8"
135.8"
50.2"
162.6"
62.8"
203.5"
75.3"
244.1"
Rev. 1.6
D
4.7"
17.0°
7.1"
17.0°
7.9"
17.1°
8.5"
17.1°
9.9"
17.1°
10.6"
17.1°
11.8"
17.1°
14.2"
17.1°
17.8"
17.1°
21.3"
17.1°
Page 2
Advertisement
