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Integrating Spheres for Reflectance

From $59.00

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ISP-R series fiber optic integrating spheres couple to Ocean Insight spectrometers to measure the total integrated reflectance of surfaces placed against the sphere’s sample port. ISP-R integrating spheres are well-suited for measurement of opaque or highly directional samples. The spheres are available in 6 mm and 8 mm sample port diameters and gloss-trap options are available that allow you to measure the specular component of the total integrated reflection.


  • Sphere material – PTFE
  • Wavelength range – 200-2500 nm (material)
  • Sample port diameter – 6 mm and 8 mm options (standard); up to 20 mm (custom)
  • Sphere diameter – 30 mm to 80 mm


Subject to change depending on model type


Gloss Trap:
No, Yes
Sample Port Diameter:
10.32 mm, 6 mm, 8 mm
Spectral Range:
~360-2500 nm, 200-2500 nm
Sphere Coating:
PTFE, Spectralon doped with BaSO4
Sphere Diameter:
30 mm, 38.1 mm, 50 mm, 80 mm
Bulb Color Temperature:
3100 K
Bulb Life:
900 hours
SMA 905
107 mm diameter x 117 mm height, 54 mm x 57 mm x 83 mm (LWH), 59 mm diameter x 58 mm height, 80 mm diameter x 78 mm height
PTFE Reflectivity:
>98% (400-1500 nm) >95% (250-2000 nm), >98% (400-1500 nm)>95% (250-2500 nm)
Replacement Bulb:
1650 g, 330 g, 730 g, 743 g, 864.7 g

Measurement techniques