Instrument Systems developed a complete family of integrating spheres in the ISP Series with the objective of marketing a broad spectrum of sizes and functionalities.

Integrating spheres with diameters from 75 mm to 2 m therefore allow the characterization of a wide range of different light sources with a very high level of precision.

All integrating spheres from Instrument Systems are in conformity with the guidelines CIE 127:2007 and IES LM-79-08 in respect of concept, construction and functionality. Integrating spheres with an internal diameter greater than 500 mm can be conveniently opened using a swivel or slide mechanism. The test specimen can be positioned in the center of the sphere using sample tables or lamp posts in order to measure the luminous flux in the 4π configuration.

Instrument Systems offers complete measurement solutions for UV-A, -B and -C radiation starting from 200 nm. The operation of the well-proven Instrument Systems spectroradiometers, e.g. CAS series, with integrating spheres made from PTFE facilitate high sensitivity measurements of UV radiant flux.

All Instrument Systems UV measurement solutions with PTFE integrating spheres are delivered with a PTB traceable calibration.