FLIR ORION SC7000 User Manual

Advanced Thermal Solutions
ORION SC7000 User Manual
DCOO5U-F ORION SC7000 User Manual Page 28
6.3.3. Consistence of Refraction index
The focus adjustment is the same for all the filter slots of the wheel.
For achieving a good focus in all filter positions, the refraction index of each
filter combination must be the same or very similar.
Remind:
Bandwidth
Filter Material
Refraction index
Group
MWBB < 2.5µm
Quartz SiO2
n=1.54
A
MWBB < 2.5µm
Silica Glass SiO2
n=1.47
A
MWBB > 2.5µm
Sapphire Al2O3
n=1.75
A
LW & VLW
Germanium
n=4
B
That means that all material belonging to the same group (A only or B only)
can be used together on the same wheel with the same thickness (standard
thickness=1mm).
Using a mix of material belonging to group A together with a material
belonging to group B (Germanium) on the same wheel is prohibited, except if
the thickness has been compensated accordingly in order to keep the same
optical path.
NB: If possible, don’t use Germanium with the 1.5 – 5.1 µm ORION SC7000,
since this material does not offer the best performances in this configuration.

FLIR ORION SC7000 Specifications

General

Brand	FLIR
Model	ORION SC7000
Category	Digital Camera
Language	English