Integrating Spheres ‒ Versatile applications

A hollow sphere coated with a diffuse reflecting material (based on barium sulfate) is designated as an integrating sphere. Due to the characteristics of the multilayered coating, any light incident on the interior surface is scattered back uniformly in all directions, according to the Lambert's Law. A complete mix and uniform distribution of the light radiation within the sphere is thereby achieved.

The Optronik Line integrating spheres are ideal for the following applications:

  • Measurement of total luminous flux and color coordinates of lamps in combination with a photometer, tristimulus colorimeter, or spectroradiometer
  • Determination of reflectance and transmittance properties for a wide range of materials
  • As a luminance standard, i.e. a light source with a uniform light emitting area for calibrating photometers, CCD cameras, etc.

Overview of our range of integrating spheres:

ModelSphere diameterApplication
ITS 500500 mmMeasurement of total luminous flux and color coordinates of small lamps in conformity with CIE publication no. 84 and ECE R37 (automobile lamps)
ITS 10001000 mmMeasurement of luminous flux and color coordinates of medium-sized and large lamps in conformity with CIE publication no. 84 and ECE R37, ECE R99 (automobile lamps incl. discharge lamps)
KMS 500500 mm Determination of transmittance and reflectance properties (specular or diffuse incident light) in conformity with CIE publication no. 38, DIN 5036-3, ECE R46 (automobile rear-view mirror), ISO 5740-1982
LDN 500500 mm Luminance standard with precise color temperature control for calibrating photometers, CCD cameras, etc.