You can add products to the watchlist and compare them with one another or send us an inquiry. There are watchlist symbols on product pages and product tables for this purpose.
This product is no longer manufactured. Remaining stock may still be available. Please refer to the alternatives listed below under "Similar products" or contact us directly.
Alternative Products for this discontinued product:
LED based calibration standard according CIE reference spectrum L41 (CIE 251) lamp for luminous flux or irradiance including electrical supply and temperature stabilization
ISS-8P-LED-VA
Uniform Integrating Sphere Source with Variable Intensity Control
80 mm sphere diameter, 19mm diameter luminous port, ODM98 coating
LED based (BN-LLSF-2P)
Intensity control with variable attenuator
Options: calibrations of luminance or irradiance in certain distance
The uniform light source ISS-8P-LED-VA is based on an ODM98 coating and offers an 19 mm light exit port. Furthermore the system is equipped with an BN-LLSF-2P light source and a manual aperture for continuous intensity adjustment (luminance/radiance). Due to this continuous intensity adjustment it is also perfectly suited as an tunable illuminance/irradiance calibration standard for photometers. Due to its spectral distribution (see BN-LLSF-2P), it is especially suitable for photometers used for LED measurements. The light source is equipeed with electronics which allow fully automated temperature and constant current control of the LED.
Intensity adjustment
With the help of the manual aperture the radiance/luminance of the sphere can be continuously adjusted to the desired level. A quality measure for the intensity adjustment is a constant color temperature and no change in the homogeneity of the light exit port. Both is achieved by the ISS-8P-LED-VA.
Other versions with remote controllable aperture or optical density filters are available on request.
Calibration
A factory calibration with included calibration certificate which is traceable to a national metrology institutes (NMI) can be optionally purchased. DAkkS testing certificates are available on request as well. The calibration is done by Gigahertz-Optik's internal calibration laboratory.
LED based calibration standard according CIE reference spectrum L41 (CIE 251) lamp for luminous flux or irradiance including electrical supply and temperature stabilization
