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Optical Technology Instruments

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Goniophotometer for specular gloss calibrations
Last Modified: 01/08/2015

Specular gloss is the perception by an observer of the mirror-like appearance of a surface. The measurement of specular gloss consists of … more

Infrared laser gonioreflectometer instrument (ILGRI)
Last Modified: 10/05/2010

The Infrared Laser Gonioreflectometer Instrument (ILGRI) is used to measure the bidirectional reflectance distribution function (BRDF) or the … more

Infrared reference integrating sphere (IRIS)
Last Modified: 02/14/2013

An integrating-sphere system has been designed and constructed for the measurement of multiple optical properties in the infrared spectral range. … more

Low background infrared (LBIR) facility
Last Modified: 08/06/2015

The Low background infrared (LBIR) facility was originally designed to calibrate user supplied blackbody sources and to characterize … more

Lunar spectro-radiometer
Last Modified: 03/30/2015

Design of the lunar irradiance instrument is based on commercially available spectrographs. These spectrographs can be stable and sub-components … more

Missile defense transfer radiometer (MDXR)
Last Modified: 08/14/2015

The Missile Defense transfer Radiometer (MDXR) is a cryogenic transfer radiometer for providing calibrations of collimated infrared beams in … more

NIST Gonio-spectroradiometer
Last Modified: 02/11/2015

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

Primary optical watt radiometer (POWR) facility
Last Modified: 03/30/2015

POWR is a cryogenic electrical substitution radiometer that serves as the Nation's optical power reference.

Radiance temperature calibration laboratory
Last Modified: 10/13/2011

Radiance Temperature Calibration Laboratory is used for the calibration of radiation thermometers, tungsten-strip lamps and heat flux gauges. more

Reference transmittance spectrophotometer
Last Modified: 07/31/2014

The Reference Transmittance Spectrophotometer (RTS) is the national reference instrument for regular spectral transmittance measurements of … more

Retroreflection calibration facility (CHARM)
Last Modified: 01/08/2015

In 1993, the United States Congress directed the U.S. Department of Transportation to establish "a standard for a minimum level of … more

SIRCUS facility and uncertainties
Last Modified: 07/29/2015

SIRCUS facility: The basic SIRCUS calibration setup is shown at the right. The output from a tunable laser is sent through an intensity … more

Spectral comparator facilities
Last Modified: 08/21/2015

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

Spectrally tunable lighting facility
Last Modified: 11/28/2014

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

Last Modified: 07/31/2014

STARR is the national reference instrument for spectral reflectance measurements of spectrally neutral, non-fluorescent samples at room … more

General Information:
301-975-NIST (6478)

100 Bureau Drive, Stop 1070
Gaithersburg, MD 20899-1070