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Part Number: ISP-REFL

Lead Time: 1 - 3 weeks

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Product Details

The ISP-REFL Integrating Sphere provides even surface illumination for reflectance measurements of surfaces such as the color of flat samples.

The ISP-REFL has 10.32 mm (0.41”) sample port aperture, a transfer optic assembly for restricting the fiber viewing angle and a built-in tungsten-halogen light source. The sphere is coated with Spectralon®, a white diffusing material that provides a highly Lambertian reflecting surface. A simple switch allows users to manipulate the sphere for the inclusion (I) or exclusion (E) of specular reflectance.

Product Overview

  • Versatile – adjusts for diffuse or diffuse plus specular measurements
  • High reflectivity – Spectralon coating is >98% reflective from 400-1500 nm
  • Built-in light source – provides even surface illumination for reflectance


Select model to see full specifications


Sample Port Diameter:
10.32 mm
Spectral Range:
~360-2500 nm
Sphere Coating:
Spectralon doped with BaSO4
Sphere Diameter:
38.1 mm
Bulb Color Temperature:
3100 K
Bulb Life:
900 hours
SMA 905
54 mm x 57 mm x 83 mm (LWH)
PTFE Reflectivity:
>98% (400-1500 nm) >95% (250-2000 nm)
Replacement Bulb:
864.7 g