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Calibration standard lamp for 2π spectral flux, total flux and CCT

BN-LH250

Calibration Lamp for Spectral Irradiance and Illuminance

BN-LHSF-AP-100

Calibration standard lamp for 4π spectral flux, total flux and CCT

100W tungsten halogen lamp
4Pi Geometry (4π)
Optional calibration

Calibration standards

Calibration standards enable the calibration and adjustment of measurement instruments to absolute measurement quantities. Calibration standards provide a reference signal corresponding to the measurement quantity to be calibrated. The reference signal of the calibration standard is calibrated in the respective measurement quantity. The calibration of the measurement instrument is performed by comparing the measurement signal of the measurement device with the standard specifications in the calibration certificate. Deviations are compensated for by adjusting the measurement instrument accordingly.

Measurement of the spectral radiant flux

The spectral radiant flux [W/nm] is important for qualification of illuminants based on their total emitted radiant power. The spectral radiant flux and its photometric equivalent luminous flux is therefore also used in the investigation of the energy efficiency of lamps. In order to measure the spectral radiant flux, the total light emitted by the lamp must be measured regardless of the radiation direction. Integrating sphere spectrometers and goniometers are typical measurement instruments for the spectral radiant flux.

4π radiation characteristics

Calibration standard lamps with 4π radiation distribution characteristics are preferred for calibration of integrating sphere spectrometers that are used in measurement of lamps in 4π geometry. For 2π standard lamps calibration see e.g. BN-LHSF-2P-20.

BN-LHSF-AP-100

A special feature of the BN-LHSF-AP-100 that it can be directly used in 50 cm and 100 cm integrating spheres from Gigahertz-Optik. The calibration standard has a quartz halogen lamp that is characterized by its continuous emission spectrum. The socket of the lamp itself is mounted in a pole in order to place the lamp in the center of the sphere.

Optional traceable factory calibration

The optional calibration of the spectral irradiance is performed by Gigahertz-Optik’s ISO 17025 calibration laboratory for optical radiation measurement quantities. The calibration is traceable to a reference standard that was calibrated by the national measurement laboratory. Calibration and results of the calibration are confirmed by a factory calibration certificate.