EVALUATION OF BLUE LIGHT HAZARD

摘要

Since the previous International Standard IEC 62471 (IEC, 2006) for the photobiological safety is rather theoretical, the IEC Technical Report 62778 (IEC, 2014) explains how to apply the IEC 62741 for simple assessment of the blue light hazard (BLH) of lamps and luminaires with visible radiation. Currently, worldwide efforts are underway to elevate this report to a new standard and add more detailed measurement procedures for BLH assessment that are accessible to a broader community. In this paper we will evaluate and compare the methods for BLH assessment with some practical measurements, and emphasize the advantages and disadvantages of each method. An outlook for further developments with the consequences will be given as well. As every manufacturer should perform BLH assessment for the approval of new SSL products, some more simpler methods will be soon available and understandable for more users.