The right choice of sphere depends on the size of the light source under
investigation and the measuring task. Potential measuring errors are
minimized with all models in the ISP Series through the optimized ratio
between sphere surface and area of the measuring port to yield a high
level of measuring accuracy. The small sphere models from Instrument
Systems with diameters of 75mm, 100mm and 150mm were specially
developed for measuring single LEDs in production and laboratory. The
mid-range sizes of 250mm and 500mm are ideal for LED modules or
small lamps with a relatively low output.
The ISP 1000 has a diameter of 1m and is ideally suited to a wide range
of applications. The characteristics of high-power LEDs, large LED
modules and lamps can be determined in both measuring geometries.
The ISP 2000 is the biggest model in the family and this is the
integrating sphere of choice for large luminaires and SSL (Solid State
Lighting) products