Calibrations

What is "NIST Traceability"?
International Light obtains fully characterized Primary Standard Detectors directly from the National Institute of Standards and Technology (NIST), a division of the United States Department of Commerce. Through the transfer of standards technique, we compare the output of a customer's detector to a standard under tightly controlled laboratory conditions. The calibration factor is computed and programmed, allowing direct readings in the optical units requested.
Spectroradiometric responsivity scans and spectrophotometric transmission scans are available, as well as calibration of custom equipment. Our Optical Calibration Lab adheres to the provisions of ANSI.Z540-1 & ISO.10012-1. Extra charges apply for audited military calibrations, and must include electrical recalibration (ECAL) of the radiometer, which is then used in the optical calibration of any detectors used in the system.

Standard Calibrations:

Item

Calibration Description

BIR Band Irradiance Response: Spectral irradiance response (amps*cm²*nm/watt) over the bandwidth of an ILsensor assembly.

CSAR Custom Scanned Absolute Response: Plot of irradiance response vs. wavelength for other than IL sensor assemblies.

CSIM Custom Spectral Irradiance Measurement: Plot of absolute irradiance (watts/cm²) vs. wavelength (nm) for any light source.

CSTM Custom Spectral Transmission Measurement: Plot of absolute transmission vs. wavelength (nm) for any filter or optical material.

ECAL Electrical Calibration of IL Radiometer: Electrical check and/or adjustment of accuracy to NIST Standards, check linearity and I/O over entire range.

IBIR Internal Band Irradiance Response: Band irradiance response of an IL sensor assembly for readout in W/cm²/nm for IL1400A detectors.

IER Internal Recalibration of IL390C or IL290A Light Bug: Electrical and optical calibration in mJ/cm², including battery replacement.

IPIR Internal Peak Irradiance Response: Irradiance response at peak sensitivity of IL1400A detectors for direct readout in W/cm².

IPPR Internal Peak Power Response: Power response at peak sensitivity of an IL sensor assembly for direct readout in Watts for IL1400A detectors.

IYIS Internal Photopic Illuminance Response: Illuminance sensitivity of an IL sensor assembly for direct readout in foot-candles or lux for IL1400A detectors.

PINR Peak Intensity Response: Intensity response (amps*sr/W) at peak sensitivity of an IL sensor assembly.

PIR Peak Irradiance Response: Irradiance response (amps*cm²/W) at peak sensitivity of an IL sensor assembly.

PIRE Peak Irradiance Response - Einsteins (moles): Irradiance response (amps*cm²*sec/Einstein) at peak sensitivity of an IL sensor assembly.

PPR Peak Power Response: Power response (amps/W) at peak sensitivity of an IL sensor assembly.

PRR Peak Radiance Response: Radiance response (amps*cm²*sr/W) at peak sensitivity of an IL sensor assembly.

SAP Scanned Absolute Power Response: Plot of absolute power response (Watts) vs. wavelength (nm) over the spectral band of an IL sensor assembly.

SAR Scanned Absolute Response: Plot of irradiance response (amps*cm²/Watt) vs. wavelength (nm) over the spectral bandwidth of an IL detector.

SIR Spectral Irradiance Response: Spectral irradiance response (amps*cm²*nm/Watt) over the entire spectral bandwidth of an IL Spectroradiometer.

SOL Solar UVB Response: Irradiance response as compared to simulated solar UVB spectral irradiance integrated below 315 nm

SRR Scanned Relative Response: Plot of relative response (% of peak) vs. wavelength (nm) over the spectral bandwidth of an IL sensor assembly.

XIR Irradiance Response at Wavelength X: Irradiance response (amps*cm²/Watt) at specified wavelength, X, of an IL sensor assembly.

XPR Power Response at Wavelength X: Power response (amps/Watt) at specified wavelength, X, within the spectral bandwidth of an IL sensor assembly.

YFS Photopic Flux Sensitivity: Total photopic flux (amps/lumen) sensitivity of an IL detector with integrating sphere input optics.

YIN Standard Lamp Intensity: Mean spherical candlepower output of lamp used with INS250 Integrating Sphere.

YINS Photopic Intensity Sensitivity: Photopic intensity response (amps/candela) of an IL sensor assembly.

YIS Photometric Illuminance Sensitivity: Illuminance sensitivity (amps*ft²/lm, amps*m²/lm) of an IL sensor assembly.

YLS Photometric Luminance Sensitivity: Luminance sensitivity (amps/fL) of an IL sensor assembly.

Item	Calibration Description
BIR	Band Irradiance Response: Spectral irradiance response (ampscm²nm/watt) over the bandwidth of an ILsensor assembly.
CSAR	Custom Scanned Absolute Response: Plot of irradiance response vs. wavelength for other than IL sensor assemblies.
CSIM	Custom Spectral Irradiance Measurement: Plot of absolute irradiance (watts/cm²) vs. wavelength (nm) for any light source.
CSTM	Custom Spectral Transmission Measurement: Plot of absolute transmission vs. wavelength (nm) for any filter or optical material.
ECAL	Electrical Calibration of IL Radiometer: Electrical check and/or adjustment of accuracy to NIST Standards, check linearity and I/O over entire range.
IBIR	Internal Band Irradiance Response: Band irradiance response of an IL sensor assembly for readout in W/cm²/nm for IL1400A detectors.
IER	Internal Recalibration of IL390C or IL290A Light Bug: Electrical and optical calibration in mJ/cm², including battery replacement.
IPIR	Internal Peak Irradiance Response: Irradiance response at peak sensitivity of IL1400A detectors for direct readout in W/cm².
IPPR	Internal Peak Power Response: Power response at peak sensitivity of an IL sensor assembly for direct readout in Watts for IL1400A detectors.
IYIS	Internal Photopic Illuminance Response: Illuminance sensitivity of an IL sensor assembly for direct readout in foot-candles or lux for IL1400A detectors.
PINR	Peak Intensity Response: Intensity response (amps*sr/W) at peak sensitivity of an IL sensor assembly.
PIR	Peak Irradiance Response: Irradiance response (amps*cm²/W) at peak sensitivity of an IL sensor assembly.
PIRE	Peak Irradiance Response - Einsteins (moles): Irradiance response (ampscm²sec/Einstein) at peak sensitivity of an IL sensor assembly.
PPR	Peak Power Response: Power response (amps/W) at peak sensitivity of an IL sensor assembly.
PRR	Peak Radiance Response: Radiance response (ampscm²sr/W) at peak sensitivity of an IL sensor assembly.
SAP	Scanned Absolute Power Response: Plot of absolute power response (Watts) vs. wavelength (nm) over the spectral band of an IL sensor assembly.
SAR	Scanned Absolute Response: Plot of irradiance response (amps*cm²/Watt) vs. wavelength (nm) over the spectral bandwidth of an IL detector.
SIR	Spectral Irradiance Response: Spectral irradiance response (ampscm²nm/Watt) over the entire spectral bandwidth of an IL Spectroradiometer.
SOL	Solar UVB Response: Irradiance response as compared to simulated solar UVB spectral irradiance integrated below 315 nm
SRR	Scanned Relative Response: Plot of relative response (% of peak) vs. wavelength (nm) over the spectral bandwidth of an IL sensor assembly.
XIR	Irradiance Response at Wavelength X: Irradiance response (amps*cm²/Watt) at specified wavelength, X, of an IL sensor assembly.
XPR	Power Response at Wavelength X: Power response (amps/Watt) at specified wavelength, X, within the spectral bandwidth of an IL sensor assembly.
YFS	Photopic Flux Sensitivity: Total photopic flux (amps/lumen) sensitivity of an IL detector with integrating sphere input optics.
YIN	Standard Lamp Intensity: Mean spherical candlepower output of lamp used with INS250 Integrating Sphere.
YINS	Photopic Intensity Sensitivity: Photopic intensity response (amps/candela) of an IL sensor assembly.
YIS	Photometric Illuminance Sensitivity: Illuminance sensitivity (ampsft²/lm, ampsm²/lm) of an IL sensor assembly.
YLS	Photometric Luminance Sensitivity: Luminance sensitivity (amps/fL) of an IL sensor assembly.