Barco R92112071, User Manual

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4. Installation
4.5.2 Lens formulas
Projection Distance
The Projection Distance or PD is the perpendicular distance between the screen and the reference point on the projector, expressed
in meter or inch.
PD sw
Ref.
Image 4-8
Projection Distance (PD) and Screen Width (SW)
Screen width
The Screen Width or SW is the total width of the image as it is projected on the screen, expressed in meter or inch.
Formulas
Lens Zoom status Metric formulas (meter) Inch formulas (inch)
QSD (0.8:1)
-
PD = 0.0679 + 0.803 x SW -
0.0121/SW PD = 2. 0.803 x SW -
18.755/SW
WA (Wide Angle) PD
min
= 0.0299 + 1.026 x SW +
0.0047/SW
PD
min
= 1. 1.026 x SW +
7.285015/SW
QSD (1.0–1.4:1)
TP (Telephoto) PD
max
= 0.0341 + 1.434 x SW +
0.0030/SW
PD
max
= 1.34252 + 1.434 x SW +
4.650009/SW
WA (Wide Angle) PD
min
= -0.0858 + 1.471 x SW +
0.0077/SW
PD
min
= -3.37795 + 1.471 x SW +
11.93502/SW
QSD (1.4–2.0:1)
TP (Telephoto) PD
max
= -0.0013 + 2.031 x SW -
0.0606/SW
PD
max
= -0.05118 + 2.031 x SW -
93.9302/SW
4.5.3 Shift capabilities
Overview
Lens
Vertical shift Horizontal shift
(if vertical shift is 0%)
Horizontal shift
(if vertical shift is 100%)
QSD (0.8:1) up/down : 12.8%
- -
QSD (1.0–1.4:1) up/down : 100% left/right : 70% left/right : 20%
QSD (1.4–2.0:1) up/down : 100% left/right : 70% left/right : 20%
-70% +70%
-70%
Image 4-9
Lens shift: maximum horizontal shift (vertical shift = 0)
18 R59770198 BARCO SIM 7D 13/02/2013