Photometry

Photometry

The light quality of LEDs, light detectors (photodiode and phototransistor) and photometric assemblies has an enormous importance for the success of a product. Due to the complete parameterizable and automated measuring stations at HTV measurement or selection of optical and electrical parameters can be carried out in production quantities. In the HTV-analytics laboratory photometric assemblies can also be inspected in view of their quality and functionality.

Our Services

Radiometric spectral measurements in the wavelength range (350 - 1100 nm)
Radiometric spectral measurements
  • Radiant intensity [W/sr], Irradiance [W/qm], Spectrum [W/sr/nm bzw. W/qm/nm], Peak wavelength, Spectral centroid, Full width at half
Photometric spectral measurements in the wavelength range (380 - 780 nm)
  • Photometric spectral measurements

    • Spectrum and dominant wavelength

LED selection
  • Luminous intensity [cd, mcd] and illuminance [lx]
  • Color coordinates (x, y) and color spaces: CIE RGB, CIE XYZ, CIE LAB (L*a*b*)
  • hotometric and electrical measurement of displays (LCD, OLED, ...), for example, before long-term conservation
Industrial thermography with thermal imaging camera
Industrial thermography
  • Detection of heat sources or hot spots on printed circuit boards in devices and systems
  • Temperature range from -30 to +350°C
  • Spectral range from 7.5 to 14 µm
  • Thermal sensitivity <30 mK at +30 °C
  • Creation and analysis of thermal images
  • Video recording for the evaluation of temperature diffusion
  • Simultaneous recording of IR and real image for better mapping
Infrared spectroscopy with FTIR (wavelength: 2,5 - 25 µm, wavenumber: 4000 - 400 cm-1)
  • Transmission and reflection measurement of uncoated and coated films, glasses
    and infrared-absorbing materials.
Electrical measurements
Electrical measurements
  • Forward voltage (VF)
  • Leakage current (IR)
Other services
Other services