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OL 426 Low-Light-Level Integrating Sphere Calibration Standard

Product Description:

The OL Series 426 is a low light level calibration standard designed for accurately calibrating very sensitive instrumentation at moderate to extremely low light levels. The OL 426 consists of an optics head and a separate power supply. The integrating spheres are available in diameters of 4, 6, 8, 12, and 18 inches with exit (radiating) ports of 1, 1½, 2, 3, and 6 inches, respectively. Calibration options include luminance, color temperature, and spectral radiance.


Application Type:

Luminace/ radiance imaging, sensor calibration


Spectral Range:

350 - 2500 nm


Units Of Measure:

W/cm²sr, fL, cd/m²



Various calibration options available


Associated Links:

OL 466 Automated Low Light Level Integrating Sphere Calibration Standard


Hardware/Software History:

Revision 1.5





Product Videos:

Photometric and Spectral Calibration Standards


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