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ISS-17-VA

Integrating sphere source with variable intensity control. Features: 170mm dia, 50.8mm dia port, BaSO4 coating. 100W lamp with variable attenuator. 2856K and 3100K. CCT and L detector. Electronic device. Luminance and spectral radiance calibrations.

ISS-17-VA

Flexible applicable uniform light source


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. 


ISS-17-VA integrating sphere light source 

The adjustable aperture between the light source and the integrating sphere makes it possible to adjust the intensity of the spectral radiance and luminance at constant color temperature. The luminance is displayed as a reference value. Besides the luminance, the monitor detector also measures the color temperature. This makes it possible to set up the light source for both temperatures: 2856K and 3100K. Furthermore, the color temperature can be readjusted making it possible to utilize the typical 2000 operation hours of the halogen lamps. A diffuser window can be fixed between the light source and the sphere to improve diffuse light distribution in the integrating sphere. 


ED-ISS-100-MD control electronic

The control electronic designed and manufactured by Gigahertz-Optik is set-up with a precise power supply and an optometer ensures high precision during operation of the integrating sphere light source. 


 Traceable calibration 

Calibration of the luminance, spectral radiance and color temperature is performed by the Gigahertz-Optik calibration laboratory for optical measurands. The calibration is done in reference to a calibration standard whose spectral radiance was calibration by the national measurements laboratory. The calibration and its results are confirmed by a corresponding calibration certificate that conforms to the ISO 17025.

ISS-17-VA with reference detector

ISS-17-VA with reference detector

Spectral radiance of the ISS-17-VA at 3100K from 300nm to 2500nm.

Spectral radiance of the ISS-17-VA at 3100K from 300nm to 2500nm.

The ISS-17-VA can be operated at both color temperatures:2856K and 3100K

The ISS-17-VA can be operated at both color temperatures:2856K and 3100K

The ISS-17-VA-V01 provides high color temperature consistency across the entire luminance operation range

The ISS-17-VA-V01 provides high color temperature consistency across the entire luminance operation range

The ISS-17-VA offers an excellent uniformity of the Luminance distribution of typical +/-0,5% to the center point and +/-0,3% to the average value. The diffuser UMPF-LSOK30-DTB was used during the measurement of sphere homogeneity.

The ISS-17-VA offers an excellent uniformity of the Luminance distribution of typical +/-0,5% to the center point and +/-0,3% to the average value. The diffuser UMPF-LSOK30-DTB was used during the measurement of sphere homogeneity.

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