CL2_IR Infrared Spectral Distribution Standard (1-20µm)

  • CL2_IR Spectral Distribution Calibration Standard

Including a 40W silicon nitride emitter operating at 1250K and high emissivity the CL2_IR is an excellent source in the infrared.

A mounting bracket provides a universal interface with all optical tables and mounting systems with the calibration distance measured from a simple datum face to the rear of the lamp.

Core benefits


  • Open-frame spectral distribution standard
  • Includes SiN infrared emitter (1250K)
  • Designed for optimal performance when powered by the 610 current stabilised lamp power supply


Lamp TypeSilicon Nitride incandescent source
Nominal lamp power and voltage40W, 12V
Operating current3.3A DC
Expected lamp lifetime5000h


Measurement typeSpectral distribution
Wavelength range1-20µm
Wavelength interval20nm
Calibration frequencyRecommended after 100 hours burn-time


Connector4mm socket
CompatibilityPost mounting hole
Dimensions91.2L x 44.4W x 76.2H (mm)


CALIBRATION-CL2-IRSpectral distribution calibration 1-20µm
CL2_IR Calibration Standard Dimensions - Top View
CL2_IR Dimensions - Top View
Typical CL2_IR Responsivity
Typical Spectral Distribution of CL2_IR

Ordering Information

CAL_CL2_IRCL2_IR Infrared spectral distribution standard
CALIBRATION-CL2-IRSpectral distribution calibration 1-20µm
PSU_610Current stabilised lamp power supply

The Bentham Standard

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