Photometric Laboratory

Professional light measurement according to CIE

Our lighting laboratory is equipped with state-of-the-art light measurement technology in accordance with the latest CIE requirements and offers precise measurements at the highest level. The measuring devices used are specially designed for the photometric measurement of LEDs and enable, among other things, the verification of data sheet values in pulse mode. In addition, LEDs from different manufacturers can be compared objectively. In cooperation with an external partner, we also carry out the measurement of LED modules and complete luminaires – reliably, reproducibly, and practically for your development and quality requirements.

LEDs and UV-LEDs

We offer comprehensive light measurements for LEDs, recording all relevant parameters. Specific measurements can also be evaluated for UV LEDs.

LED

Luminous flux (lm)

Measured in lumens (lm), it determines the brightness of a light source in three-dimensional space.

LED

Luminous intensity (cd)

Luminous flux / solid angle, measured in candelas (cd), indicates how brightly a light source shines in a specific direction.

LED

color location

x,y coordinates determine the position of the color temperature in the CIE -XYZ color space.

Wavelength (nm)

Measurement of LEDs and UV LEDs in the spectral range from 200 nm (UV) to 1,100 nm (IR). The visible light range from 380–780 nm is fully covered.

LED

Photosynthetic photon flux (PPF)

Measures the number of photons emitted per second that can be used by plants for photosynthesis.

Transmission-Reflection

Measures the permeability of a medium for light waves and its reflected light waves.

LED

CRI | TM30

Color rendering index that describes the quality of color rendering of light sources with the same correlated color temperature.

Spectrum

Spectral software for color measurement, radiometric and effect-related analyses. Display of weighted light distribution across the entire wavelength range.

LED

Illuminance (lx)

Luminous flux/area, measured in lux (lx), indicates how brightly an area is illuminated.

LED

Color temperature (CCT)

CCT/ Measured in Kelvin, reflects the color impression of the light from cool white to warm white.

Additional services for LED modules and luminaires

For LED modules and luminaires, we are expanding our range of services to include additional light measurements, which we carry out in collaboration with selected external partners. This ensures that you receive an even more comprehensive range of services with precise results, the highest quality, and compliance with all relevant standards.

Non-binding inquiries

Photometric measurements on LED modules and luminaires
Luminous flux measurements on LED modules and luminaires
Creation of 3D luminous intensity distributions (LVK) formats: LDT/IES
Conversion of lighting data formats: LDT/IES
Determination of gross/net luminous flux on LED luminaires
Determination of various lighting parameters such as: luminous efficacy, efficiency, UGR values, luminance, luminous intensity, beam angle, zonal luminous flux, closest color temperature (CCT), color coordinates, color rendering index (CRI)
Temperature-dependent measurement of photometric and colorimetric parameters on LED modules
Measurement of spatial luminous intensity distribution according to EN 13032 and LM-79-08
Measurement of absolute luminous flux according to EN 13032
Determination of the energy efficiency class of lamps and luminaires in accordance with the Ecodesign Directive 2009/125/EC, Regulation 1194/2012, and Regulation 874/2012

Measurement of spectral light distribution 380–800 nm
Testing of photobiological safety in accordance with DIN EN 62471
Spectral measurements in the range 200–3000 nm
Irradiance measurements
Measurement of photosynthetically active radiation 400–700 nm in plant lighting (PAR, PPF, PPFD)
Irradiance measurements

EMC testing in accordance with current standards
Emission (interference emission)
Immunity (interference resistance)
Mains interference
Harmonic oscillations

Flicker measurements according to IEEE 1789
Determination of flicker frequency and modulation depth (flicker percentage)
Determination of the flicker index
Stroboscopic effect analyses
Evaluation and classification according to NEMA 77

The technology behind our laboratory.

Ulbricht Kugel

Light- and radiation-measuring device for measurement of luminous intensity in cd or mW/sr, according to requirements after CIE127

Ulbricht Kugel

Precise measurements for the highest standards.

Spektroradiometer

CCD Array 1024 x 128
Range of wavelength-measurement: 350 - 1100nm (UV- / vis- / IR-range)
Integration time 9ms - 60s
Measurement parameters: Color coordinates (x, y / u′, v′), Color temperature, CRI; Ra, Ri; i= 1 - 14, Relative spectral light distribution P (λ), Luminous flux, Luminous power

Spektroradiometer

State-of-the-art equipment for your projects.

UV-Spektroradiometer

Wavelength measuring range: 200nm to 1,100nm
Spectral software for color measurement, radiometric and effect-related measurements
Transmission measurements