INTEGRATING SPHERES

Integrating spheres, sometimes named Ulbricht spheres, are capable to measure integrated photometric quantities like total luminous or radiant flux. Similarly, average colorimetric quantities of a lighting device may be measured, either within a solid angle of 4π or 2π. Typical applications are

Luminous flux measurements of light sources in production, quality control, research and development
Chromaticity measurements with colorimeters and spectroradiometers
Luminous flux calibration of working standards
Time-resolved light source measurement, for instance Optical Flicker

Products

Integrating spheres with diameters of 1 m and 1.65 m and an Integrator with 2.25 m x 1.65 m for measurement of luminous flux, average chromaticity coordinates or integral radiometric properties.

Integrating Sphere LMT UL 1000
Integrating Sphere LMT UL 1650
Integrator LMT UL 1650×2250

Optional Sphere Equipment

Spectroradiometer LMT SM 8000 UL
High speed Tristimulus Colorimeter LMT C 3300 for time-resolved colour measurements
LMT Optical Flicker Unit for time-resolved analysis
2π-port, 300mm dia., for LED module measurement
4-point measurement socket family
LMT Goniofix
LMT Photometer Paint PHP 80 / 90 / 92