Barco DP2K--20C, Installation Manual

Page: 54 / 141

5. Lenses & lens holder
5.3 Lens formulas
Formulas
Lens Throw ratio for 0.98" DC2K Zoom Formulas (metric and inches)
0.98” DC2K Zoom (1.2–1.81:1) 1.2 - 1.81 PD
min
=1.2 x SW
PD
max
=1.81 x SW
0.98” DC2K Zoom (1.4–2.05:1)
1.4 - 2.05
PD
min
=1.4 x SW
PD
max
=2.05 x SW
0.98” DC2K Zoom (1.6–2.5:1) 1.6 - 2.5 PD
min
=1.60 x SW
PD
max
=2.50 x SW
0.98” DC2K Zoom (1.95–3.2:1) 1.95 - 3.2 PD
min
=1.95 x SW
PD
max
=3.2 x SW
0.98” DC2K Zoom (2.4–3.9:1)
2.4 - 3.9
PD
min
=2.4 x SW
PD
max
=3.9 x SW
Due to production tolerances the real distances can differ by 2% from these calculated values.
For critical situations ( fi xed installs that use the lens at one of its extreme zoom positions) this should be
taken into account.
C
AUTION
:
Never transport the projector with a Lens mounted in the Lens Holder. Always remove the Lens
before transporting the projector. Neglecting this can damage the Lens Holder and Prism.
48 R59770351 DP2K-20C 02/02/2010