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Diffuse Reflectance


Spectralon Reflectance Standards

Spectralon® Reflectance Standards

Spectralon Diffuse Reflectance Standards can offer the highest diffuse reflectance values of any known substance.
Technology From: Labsphere

Spectralon® Reflectance Standards

Spectralon® Diffuse Reflectance Standards can offer the highest diffuse reflectance values of any known substance. These durable, chemically inert standards can have typical reflectance values ranging from 2% to 99% and are spectrally flat over the UV-Vis-NIR

Ultraviolet-Visible-Near Infrared
spectrum. All Spectralon materials are optically flat to ± 4% over the range of 250 - 2500nm and ± 1% over the photopic region of the spectrum.

Spectralon Diffuse Reflectance Standards are highly Lambertian, with Spectralon SRM-99 Reflectance Material being the most Lambertian reflector available for use over the wavelength range from 250 - 2500nm.

They are available individually and in sets, consisting of a diffuse white standard and a selection of diffuse grey standards. Each standard is supplied with complete diffuse reflectance data from 250 - 2500, every 50nm. All standards are housed in a durable delrin holder with a protective cover.

Applications
  • Spectrometer Calibration
  • Densitometer Calibration
  • Integrating Sphere Systems
  • Optical Equipment
  • Photographic Equipment
  • Reflectometers
  • Remote Sensing Instruments
Products Include
  • Diffuse Reflectance Standards
  • Grey Scale Standards
  • Diffuse Colour Standards
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Diffuse Reflectance Coatings

Diffuse Reflectance Coatings

Technology From: Labsphere

Diffuse Reflectance Coatings

Spectraflect® Coating is a proprietary, high-reflectance coating that is useful over a wide wavelength range. It is generally used as a reflectance coating in the UV-Vis-NIR

Ultraviolet-Visible-Near Infrared
region and is most effective over the wavelength range from 300 to 2400nm. This inexpensive, non-toxic material is near-Lambertian in character and easily applied by spray to any substrate. Spray coating allows for faster prototyping and ensures that the final design is not limited by the application process.

The reflectance of Spectraflect, as with all reflectance coatings, is dependent on the thickness of the coating. At thicknesses above 0.5mm (0.02"), the coating is opaque with reflectance of >99% over the wavelength range from 400 to 1100nm. Spectraflect is thermally stable to approximately 100°C.

Key Features
  • High Reflectance
  • Highly Lambertian
  • Optically Stable
  • Non-Toxic
Applications
  • UV-VIS-NIR Applications
  • Optical Components
  • Integrating Spheres
  • Lamp Housings
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High Reflectance Materials

High Reflectance Materials

Spectralon Reflectance Material gives the highest diffuse reflectance of any known material or coating over the UV-VIS-NIR region of the spectrum and can be machined into a wide variety of shapes for the construction of optical components.
Technology From: Labsphere

High Reflectance Materials

Spectralon Reflectance Material gives the highest diffuse reflectance of any known material or coating over the UV-Vis-NIR

Ultraviolet-Visible-Near Infrared
region of the spectrum and can be machined into a wide variety of shapes for the construction of optical components. Spectralon exhibits relatively flat spectral distribution over most of the UV-Vis-NIR from 250 to 2000nm. These spectral properties exceed those of most paints, which show strong absorbencies in the UV
Ultraviolet
due to absorbencies by TiO2 or similar pigments.

The hydrophobic nature of Spectralon also leads to exclusion of water overtone bands in the NIR

Near Infrared
, which may occur in barium-sulphate-based materials. The open structure of Spectralon causes both reflectance and transmittance, but not absorbance of light. The material has hardness roughly equal to that of high-density polyethylene and is thermally stable to >400°C.

Key Features
  • >99% Diffuse Reflectance
  • Extremely Lambertian
  • Chemically Inert
  • Thermally Stable
  • Environmentally Stable
  • NIST
    National Institute of Standards and Technology
    Traceable Calibration
Applications
  • Optical Components
  • Densitometer Standards
  • Remote Sensing Targets

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Infragold

Infragold

Infragold can be applied to metal parts, generally aluminium, nickel or steel, although it has been applied with success to copper and tungsten.
Technology From: Labsphere

Infragold

Infragold NIR-MIR

Near Infrared-Mid Infrared
Reflectance Coating is an electrochemically plated, diffuse, gold-metallic coating which exhibits excellent reflectance properties over the wavelength range from 0.7 to 20µm. The typical reflectance of Infragold is >94% above 1000nm and data is traceable to the National Institute of Standards and Technology (NIST). Infragold can be applied to metal parts, generally aluminium, nickel or steel, although it has been applied with success to copper and tungsten. It is generally used for reflectance integrating spheres and accessories for NIR-MIR applications and is suitable for many space applications.

Key Features
  • High Reflectance
  • Highly Lambertian
  • Durable
  • Easily Cleaned
  • Traceable to NIST
    National Institute of Standards and Technology
    and NRC
    National Research Council
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All products and information are subject to change without notice.