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Physical Measurement Laboratory / Sensor Science Division

Optical Radiation Group

Tools and Instruments

Displaying 1 - 10 of 10

Aperture area measurement facility

NIST has established an absolute aperture area measurement facility for circular and near-circular apertures use in radiometric instruments. The facility

NIST Gonio-spectroradiometer

The NIST gonio-spectroradiometer is used to measure total spectral radiant flux (TSRF) of incandescent lamps. The instrument consists of a 3-axis scanning
reflectometer

Reference 0:45 reflectometer

The primary purpose of the 0:45 reflectometer is to disseminate color standards to the color and appearance community. The instrument was designed to provide
densiometer

Reference transmittance densiometer

The Reference Transmission Densitometer (RTD) is the national reference instrument for standard diffuse visual transmittance density measurements for x-ray

Spectral comparator facilities

Visible to near-infrared spectral comparator facility (Vis/NIR SCF)The Vis/NIR SCF is a monochromator-based system that typically measures the spectral power

Spectrally tunable lighting facility

Solid-state lighting (SSL) is increasingly being introduced into the market and it is expected that many of the light sources currently used for general