Bentham manufactures an extensive range of integrating spheres from 2cm to 2m diameter, for measuring the total flux, spectral power distribution and chromaticity of almost any light source (from lasers and LEDs to large linear fluorescent tubes.
All our spheres can be coupled to our high performance spectroradiometer systems for UV-visible-IR spectral power distribution measurements yielding full colour information including colour rendering indices, chromaticity co-ordinates, colour temperature, etc. Alternatively precision photometric detectors can be fitted for direct total lumen output measurements.
All our spheres are fully compliant with CIE84 recommendations.
Depending on the wavelength range required, our spheres can be manufactured from various materials:
ODM/Benflect, a proprietary PTFE type material: best performance 200-2500nm
Barium sulphate: general purpose 300-2500nm
Gold: recommended for IR applications beyond 2000nm