Specular Reflectance Standard, Low Reflectivity


SKU: STAN-SSL Categories: ,

Product Description

The STAN-SSL Low-reflectivity Specular Reflectance Standard is a black glass standard that can be used as a reference when measuring surfaces with low specular reflectance values such as thin film coatings, anti-reflective coatings, blocking filters and substrates. The coated surface of the STAN-SSL provides an ~4.0% reflectance across the 200-2500 nm wavelength range.

The STAN-SSL substrate measures 1.25″ in diameter and is housed in a sturdy 1.5″ x 0.75″ blue anodized aluminum enclosure and protected by a screw-on top.


User’s Tips
  • The use of the STAN-SSL is limited to 200-2500 nm.
  • Use the STAN-SSL to set a low-reflectivity reference of ~4%.
  • Although the black glass is a durable substrate, the user should handle it with care to maintain the integrity of its calibrated surface.
  • To clean the STAN-SSL surface, first remove dirt and dust by blowing it off with a pressurized gas. Then use the drag method of cleaning to remove fingerprints and residual contaminants. In the drag method, lens tissue saturated with reagent-grade isopropyl alcohol or acetone is slowly dragged across the surface. Done correctly, the solvent will evaporate uniformly with no streaking or spotting.
STAN-HOLDER Reflectance Standard Holder

The STAN-HOLDER is a convenient accessory option for keeping the standard secured in place or to an optical post during measurements. STAN-HOLDER is available for $99.

Technical Data

Weight1 lbs
Dimensions50 × 50 × 20 mm


There are no reviews yet.

Be the first to review “Specular Reflectance Standard, Low Reflectivity”

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.