Radiance based hazard measurements (ACC024)
Modern non coherent light sources became brighter and brighter during previous years, therefore the danger of injuries of human skin and eye increases. Typical examples are LED spotlights. So, the legislation created regulations to protect the population against such injuries. These regulations contain hazard categories and related exposure limits. If the risk cannot be calculated using available data, it is necessary to proceed special optical measurements to obtain the individual exposure values. The final result of a hazard evaluation will be the classification of the source into a risk group.
As a result, Jeti offers radiance-based hazard measurements accessories (article number ACC 024) for specbos 1211UV-2 spectroradiometer. The measurements related to the retina of the eye are radiance-based measurements.
With the accessories, the spectroscopy instrument can measure following hazard categories:
- Retinal blue light hazard (BLH)
Blue light LB - calculated by weighting the measured spectrum with the B(λ) actinic curve wavelength range 300 - 700 nm
- Retinal thermal hazard
Retinal thermal LR - calculated by weighting the measured spectrum with the R(λ) actinic curve wavelength range 380 - 1000 nm
- Retinal thermal hazard (weak visual stimulus)
Retinal thermal LIR - calculated by weighting the measured spectrum with the R(λ) actinic curve wavelength range 380 - 1000 nm
Please see the technical note 26 for more facts on radiation-based hazard measurements.
