ilis gmbh develops, produces and distributes software, measuring technology and automatic testing equipment for quality assurance in the glass and optics industry. With the measuring and testing devices of the StrainScope series we offer imaging polarimeter systems for the automatic and objective measurement of stress birefringence in glass and plastic. Chroma is a universal, device-independent software for optical spectroscopy (transmittance, absorbance, reflectance) with integrated color evaluation and data management as well as special functions (not only) for the glass industry.