LED Light Meter, Integrating Sphere, Diffuser Window

Manufacturer's part number :


Manufacturer Gigahertz Optik

Gigahertz Optik

Description :

The BTS256-LED-DA is a high-quality light meter for measurement of the luminous flux, luminous spectrum and luminous color of LEDs in the visible spectral range. The optional BTS256-LED-DA diffuser window expand the application range by making it possible to measure the illuminance of point light sources.

Technical Data :

  • Quote and availability


  • Luminous flux calibration +/-8%
  • Illuminance calibration +/- 4%
  • Light sensor: Bi-Technology sensor with a broadband detector and a 256 Pixel CMOS diode array. Integrated aperture for automatic dark signal adjustment.
  • Input optics for the illuminance: Bayonet adapter with diffuser window. 20mm diameter of the diffuser window. +/- 30° cosine corrected field of view. 5% cosine correction within the specified range.
  • Input optics for the luminous flux: Integrating sphere with synthetic ODM98 coating and protective window at the sphere port.
  • Operating temperature range: 10°C to 30°C
  • External integrating spheres with diameters ranging from 21cm to 100cm (optional)