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  • WS Reflectance Standards

Specular and Diffuse Reflectance Standards

Lead Time: 2 weeks

Prices From $468.00

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Product Details

Ocean Insight offers specular and diffuse reflectance standards for measurements of various types of sample surfaces. Reflectance measurements are a ratio of the reflected light spectrum to the incident light spectrum. Since there is no way to directly collect all of the light incident on a surface, reflectivity is usually measured relative to a reference standard. To ensure best results, the standard selected should be similar in reflectivity to the sample to be measured.

Product Overview

  • Diffusing materials – choose from PTFE or Spectralon standards
  • Specular reflectance standards -- aluminum mirror on fused silica substrate
  • High reflectivity over broad range – >95% reflectivity from 250-2200 nm
  • Additional options – other Spectralon reflectance standards and targets also available


Select model to see full specifications


Diffusing Material:
Reflectance Material:
Front surface-protected aluminum mirror on fused silica substrate
Schott ND9 glass
~5% (200 - 950 nm) ~4% (950-2500 nm)
~87%-93% (200 - 1000 nm) ~93%-98% (1000 - 2500 nm)
~87%-93% (250 - 1000 nm) ~93%-98% (1000 - 2500 nm)
>98% (250-1500 nm)>95% (250-2200 nm)
99% (400-1500 nm)>96% (250-2000 nm)
Spectral Range:
200-2500 nm
250-2000 nm
250-2500 nm
Dimensions (Housing):
32 mm OD
10 mm thick (tile)
38 mm diameter (housing)
38 mm outer diameter x 19 mm height
Dimensions (Substrate):
10 mm thick
31.75 mm outer diameter x 6.35 mm height
Housing Material:
30 g - 40 g

Measurement techniques