The model 2500 Integrating Sphere has a diameter of 150 mm and a typical attenuation of 6000:1. It includes an input aperture disk with a standard 19 mm port and a blank adaptor which can be drilled for other aperture sizes.

 It is compatible with a broad range of sensors, and features an internal baffle that is ideal for measurement of diverging light sources. The mounting interface is via a ¼-20 female thread.


  • LED Test & Measurement
  • Laser Power Measurement
  • Fiber-Optic Testing
  • General Photometry & Radiometry