Customized integrating spheres
Besides light sources, optical fibers and spectrometers, Integrating spheres are an often used instrument for various light mesaurement tasks. The diffuse multiple reflexion of light inside the integrating spheres generates a constant radiance in any direction as well as a homogenization of single wavelenthgs.
That means an integrating sphere can be used for example approximately as a Lambertian radiator. Other typical applications are absolute measurement of spectral radiant flux of light sources or of spectral irradiance at a certain position.
Moreover, integrating spheres are ideally suited for relative measurements of spectral reflexion or transmission of materials, as reflected or transmitted light is caught regardless of the angle. Even Haze measurements of glasses can be done exactly.
- Use appr. as Lambertian radiator
- Absolute measurement of spectral radiant flux of light sources
- Absolute measurement of spectral irradiance at a certain position
- Relative measurements of spectral reflexion or transmission of materials
- Haze measurement
Depending on the customer specific application, we manufacture an integrating sphere that matches your measurement task exactly or offer a complete measurement setup, consisting of an integrating sphere, spectrometer, light source, absolute calibration, optical fibers and accessories.
The diameter of our integrating spheres ranges from 30 mm to 1600 mm. We offer coatings made of BaSO4, optical PTFE and gold. On request we manufacture also special constructions such as double spheres, spheres to open up, spheres on rolling tables or water cooled spheres.
If you are looking for an integrating sphere, please call us or contact us by mail. We are looking forward to your request.
Electronic shutter for in-line and integrating sphere applications in 30 mm cage system
Integrating spheres are measured before use using calibration light sources. However, the main problem with the operation of calibration lamps is that a fluctuation of the injection current of the light source leads to a 7 times higher fluctuation of the optical power at the operating point of the calibration lamp. This is why a precisely adjustable and highly stable power supply for the calibration light source is so immensely important.