Measurement of Wavelength Dependant Pulse Durations and Fluence Variation within a Discharge of Broadband Intense Pulsed Light Using Time-resolved Spectroscopy

thermal hazard weighting function as described in by IEC TR 60825-9. All measurements were taken with traceability to national standards. Results: The results are presented as a 9-stage flow diagram. The home-use IPL hair removal device used in this worked example under worst-case conditions shows that any exposure to the human eye will not permanently damage retinal tissue and that safety eyewear is not a necessity. Conclusion: By a worked example, following a simple flowchart, it is shown that the ocular hazard calculation of any intense light equipment can be worked through easily and the protective density of eyewear determined. Prior to publication of the draft revised IEC 60601-2-57 international standard for Optical radiation safety and laser equipment, all suppliers of professional and home-use intense light equipment should refer to BS 8497-2 to evidence ocular safety.