Calibration and Cleaning Service
SphereOptics can provide a service for the measurement for our Standards and Targets, as well as for samples, that are provided by the customer. The reflectance and transmittance measurements are performed by using a high end spectrometer, Perkin Elmer Lambda 950 or Lambda 19, which are both equipped with an Integrating sphere.
Spectrometerconfiguration (® PerkinElmer)
The measurement of reflectance is done in the 8° geometry. Using this setup, the sample is mounted at the port of the sphere with an angle of 8°, which shifts the specular reflection of the sample toward the spheres wall. Optional, it is possible to have a light trap at this 8° position of the Sphere, to get also the diffuse and specular parts of the total reflection.
Measurement Geometry (® PerkinElmer)
The referencing the measured value is by using a standard, which was certified by the physikalisch technische Bundesanstalt (PTB). The wavelength accuracy of the spectrometer is checked periodically by using a SRM-2036 standard of National Institute of Standards & Technology (NIST)
Accuracy and Range
In case your standard or target become contaminated, dirty or mechanically damaged we offer a cleaning and repair service.
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