Digital Projection M-Vision 930 3D Series, Инструкция по установке и быстрому запуску

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page 97
Digital Projection M-Vision 930 Series
Reference Guide
APPENDIX B: LENS CHARTS
Rev C February 2015
Appendix B: 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 distance between the projector and the screen (throw
distance)
•
The maximum width of your screen
In the chart, find the point where the throw distance corresponds to
the screen width, as shown in the example below.
Example
For a projector with
•
throw distance 7 m, and
•
screen width 3.5 m,
the correct lens would be number 3 in the chart.
Notes
For information about individual lens
part numbers and lens extension
sizes, see Appendix A earlier in this
document.
1 2
1
Screen width
2
Throw distance
1 2
3
4
Screen width
Throw distance
5 m
(16.4 ft)
10 m
(32.8 ft)
15 m
(49.2 ft)
20 m
(65.6 ft)
25 m
(82.0 ft)
30 m
(98.4 ft)
2 m (6.6 ft)
4 m (13.1 ft)
6 m (19.7 ft)
8 m (26.2 ft)
12 m (39.4 ft)
10 m (32.8 ft)