Christie Matrix SIM, Руководство по установке

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Section 2: Installation
Matrix StIM/SIM Setup Guide 2-3
020-100397-02 Rev. 1 (11-2012)
In typical front and rear screen installations the projector can be mounted to a secure and level surface. The
projector can be mounted in any orientation without affecting performance.
2.4 Installation Considerations
2.4.1 Throw Distance
Throw distance determines the necessary distance between the projector and the screen in order to achieve the
image size required to fill your screen size.
Throw ratio is defined as:
Percentage offset is defined as:
For example, using a 1.2:1-1.6:1 zoom lens set at its widest (1.2:1) throw ratio, throw distance would roughly
be 1.2 x screen width.
IMPORTANT:
Use the lens and screen size to calculate the precise throw distance. Due to lens manufacturing
tolerances for lens focal length, actual throw distance can vary
±
2% between lenses with the same nominal
throw ratio.
NOTES: 1)
Offsets are subject to ±7% centering tolerance.
2)
Image size outside the specified width range may
result in reduced image quality.
3)
Throw distance is measured from the marked exit pupil position on the lens,
to the screen.
4)
100% offset is defined as having all pixels shifted beyond the axis.
5)
Offsets are measured
from optical lens centre, which may not coincide with mechanical centre.
CHRISTIE Lens
Throw Distance
Offset Percentage (%) / Offset
Pixel (px)
Specified Throw Distance Range
Horizontal Vertical Inches Meters
Min Max Min Max
0.64:1 11% (211) 26% (312 px) 40 120 1.0 3.1
1.2-1.6 75% (1440) 150% (1656 px) 59 213 1.5 5.4
0.75:1 80% (1536) 134% (1608 px) 28 102 0.7 2.6
Throw Ratio
throw distance
screen width
----------------------------------- 2%

=
% Offset
# of pixels of offset
half vertical panel resolution
-------------------------------------------------------------------- 100

=