Apr-09
119
Avantes
www.avantes.com
1.
Connect an optical read fiber between the SMA terminated measurement port on the side of the
sphere and the spectrometer.
2.
Connect an optical illumination fiber or bundle between the SMA terminated illumination port
on the top of the sphere and the light source. We recommend a 600um fiber or a bundle of 7
fibers of 200um. A bigger bundle will result in a collimated measurement spot, which is bigger
than the sample port and will therefore make the measurement less accurate.
3.
Loosen the set screw of the collimating lens with the Allen Wrench key 1,27 mm on the barrel
and slide the inner barrel until you see a sharp focused spot without light intensity and color
variations across the beam spot. Focus the illumination spot on the sample port, the optimal
focusing point diameter is ca. 80% of the sample port diameter. The best way to see the spot is
to put a white paper on the sample port and hold the sphere upside down.
4.
Now you can put your AvaSphere on the object you would like to measure, do not forget to take
dark and reference (on a WS-2 white tile) first.
5.
The maximum angle of diffuse reflection is 120° field of view.
6.
Measurements should be done in AvaSoft's reflectance or color parameter mode, see the
appropriate documentation.
Technical Data
AvaSphere-30
AvaSphere-50
AvaSphere-80
Internal diameter (mm)
30
50
80
Sample port diameter (mm)
6
10
15
External Housing
dimensions
59.5 mm diameter
40 mm height
69.5 mm diameter
60 mm height
109 mm diameter
95 mm height
Ordering info for accessories
AvaSphere-LED-
Adapter
Cylindrical Adapter to hold 3, 5, 8 mm LED‟s inside the AvaSphere-50-IRRAD
AvaSphere-LED-ADR-
80
Cylindrical Adapter to hold 3, 5, 8 mm LED‟s inside the AvaSphere-80-IRRAD
AvaSphere-GT50
Optional Gloss Trap for AvaSphere-50-REFL, coated with black absorbing material.
Only in combination with AvaSphere-50-REFL.
AvaSphere-GT50-W
Gloss Trap coated with white material to include specular reflection
AvaSphere-50-HOLD
WS-2-GEM Tile holder for AvaSphere-50-REFL for gemmology applications
