Halogen lamp light source ISS-17-VA

blue

Integrating sphere light source The integrating sphere is a “Uniform Light Source” and provides an illumination field that exhibits a magnificent level of luminance homogeneity. Halogen lamps Halogen lamps provide a continuous luminous spectrum and are therefore preferred for spectral radiance and luminance calibration standards. Calibration standard for the spectral radiance Calibration of the spectral radiance of the illumination field makes it possible to use of the integrating sphere light source as a calibration standard for the comparison of spectral radiometers for spectral radiance as well as imaging spectrometers. In these applications, the halogen lamps are operated at a 3100K color temperature so as to ensure maximum intensity in the blue spectrum. Calibration standard for the luminance It is predefined that standard illuminant A with a 2856K color temperature should be used for calibration of the luminance responsivity of luminance measurement devices.