 Integrating spheres are typically used to measure various types of light sources (tungsten halogen lamps, LEDs, lasers…). They have turned out to serve as versatile and effective tools in the field of photometry and radiometry. The inner sphere wall is covered with a layer of high diffuse reflectance. By means of this a nearly perfect homogenization of the incoming optical radiation – whether directed or not – can be achieved. Labsphere Inc. is known for its outstanding expertise in the field of diffusely reflecting materials and their use in integrating spheres.  In the meantime LEDs are very well established in numerous applications in the automotive industry. From now on they expand into applications which are typically considered as a native domain of conventional light sources, like tungsten halogen lamps. Therefore, measurement systems, capable of measuring photometric and colorimetric quantities like luminous flux, chromaticity coordinates, dominant wavelength etc. in a fast and reliable way, are essential. Labsphere Inc. offers complete turnkey systems, which are both economic and easy to use.  Reflectors allow a quick-and-easy calibration of measurement devices, e.g. when reflectance values or surface colours are to be measured by using spectroradiometers. Besides a complete grey scale even coloured reflectors of different size and mechanical specifications are available. Thus, nearly every measurement problem can be tackled. |
 Uniform light source are based on integrating spheres but are equipped with one or more stabilized light sources. This leads to a highly homogeneous luminance (radiance) over the whole port area (Lambertian radiation pattern). Such sources are designed to test and calibrate electronic and photographic imaging systems.  The measurement of UV radiation with respect to biological issues (damage of skin and eye) is of growing importance for high-quality spectroradiometers. Laser 2000 offers several turnkey systems optimized for transmission measurement of suntan lotions, textiles and pharmaceutical products. |
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