Off-Axis Projection; Adjustment Procedure - Barco BarcoData 2100 LC Installation Manual

3

OFF-AXIS PROJECTION

Off-axis projection
The projector can be adapted to off-axis installation in order to meet
environmental conditions. The range within which the projection
angle can be changed is 0° (= on-axis) to 10° downwards for the
QSD(0.8:1) and QSD(1.2:1) lens.
For every possible installation a number of things have to be geared
for one another:
- chosen lens : QSD(0.8:1) or QSD(1.2:1)
- position of the lens mounting, called 'discrete off-axis'
- internal conversion-kit: for each projection-angle/lens combi-
nation a different fresnel-lens is needed (see Table 1)
- mechanical shift
Q…‚wrp‡v‚htyr Gr†ÃRT9 !) 
!ƒ S&%('&"F
#ƒ S&%('& F
%ƒ S&%('%(F
'ƒ S&%('%&F
ƒ S&%('%$F
* Note: These combinations are not recommended! The optical
performance towards the corners of the image is reduced.

Adjustment Procedure

Note: for servicing the projector a special tool kit is available with the
Order No R9829530.
a) Changing the discrete off-axis
The discrete off-axis is determined by the position of the fixing
screws in the adaptation holes of the lens mounting. On the lens
mounting, each of the holes of the upper-right set have the
corresponding projection-angle/lens combinations indicated.
5975349A RETRO BLOCK DATA 2100LC 200598
Gr†ÃRT9') 
S&%('&!F
S&%('&F
S&%('%'F
S&%('%%F
S&%('%#F
Table 1
5HDU7DEOH
Off-axis Projection
Q…‚wrp‡v‚Ãhtyr
3-1