Calibration Sources

Luminance standard ldn 10
Creates on it’s light emitting surface a luminance which is accurately defined

Calibrated bulbs

Standard Lamps for Integrating Spheres and Goniophotometers
Luminous flux standard lamps with calibration certificates to calibrate luminous flux test equipment with integrating spheres or for use the goniophotometers

Standard Flux Lamps for Vehicle Lights Standard lamps for testing vehicle lights according to ECE Regulation No. 37 with certificate issued by an accredited testing laboratory. The test certificate includes the relevant geometrical, electrical, and photometrical values.

Standard Flux Lamps for General Lighting
Standard lamps for calibration of luminous flux test equipment with certificate issued by an accredited testing laboratory. The test certificate includes the relevant electrical values and the luminous flux.

Spectral Calibration Bulbs
Set of spectrally calibrated bulbs with Labsphere calibration certificate.

Standard Intensity Bulb WI41G

Standard intensity calibration bulb WI41G mounted into special socket for highly precise photometric calibration purposes. Luminous intensity usually approx. 256 cd. Traceable to National Standard PTB. The lamp comes optionally with a calibration certificate issued by the German Federal Institution for Physics and Technology PTB. The lamp’s calibration needs to be checked after certain periods of use.