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ISP-50-I-USB Direct-attach Integrating Sphere

Item Code: ISP-50-I-USB

Lead Time: 2 - 3 weeks



Total Price

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ISP-I integrating spheres connect to our spectrometers and optical fibers to measure the spectral output of LEDs, lasers and other light sources. Each sphere consists of a PTFE-based, sintered diffusing material that provides a Lambertian surface (with >98% reflectivity in the visible) for irradiance measurements. This integrating sphere attaches directly to USB2000+/USB4000 spectrometers.



  • Sphere material – PTFE
  • Wavelength range – 200-2500 nm (material)
  • Sample port diameter – 8 mm
  • Sphere diameter – 50 mm


Subject to change depending on model type


Sample Port Diameter:
8 mm
Spectral Range:
200-2500 nm
Sphere Coating:
Sphere Diameter:
50 mm
80 mm diameter, 78 mm height
LED Adapter:
PTFE Reflectivity:
>98% (400-1500 nm); >95% (250-2500 nm)
730 g