Digital Projection HIGHlite 660 Series, User Manual, Page: 79 / 109

Digital Projection
HIGHlite 660 Series
CHOOSING A LENS Reference Guide
Ref 21 Rev A November 2012
Lens charts
How to use the lens charts
The lens charts on the following pages provide a quick guide to
the type of lens needed for a particular projector.
To use the lens charts, you need the following information:
•
The DMD resolution of your projector
•
The distance between the projector and the screen (throw
distance)
•
The maximum width of your screen
In the chart for the required DMD resolution, find the point where
the throw distance corresponds to the screen width, as shown in
the example below.
Example
For a 1080p projector with
•
throw distance 14 m, and
•
screen width 3.5 m,
the correct lens would be number 6 in the chart.
Notes
For information about individual lens
part numbers, see
Appendix A
at
the end of this document.
1 2
1
Screen width
2
Throw distance
1 2 3 4 5
6
7
1 m (3.3 ft)
2 m (6.6 ft)
3 m (9.8 ft)
4 m (13.1 ft)
5 m (16.4 ft)
6 m (19.7 ft)
5 m
(16 ft)
10 m
(33 ft)
15 m
(49 ft)
20 m
(66 ft)
25 m
(82 ft)
30 m
(98 ft)
35 m
(115 ft)
40 m
(131 ft)
Screen width
Throw distance