Editing Luminance (section)

==Health effects==
{{Further|Laser safety}}
Retinal damage can occur when the eye is exposed to high luminance. Damage can occur because of local heating of the retina. Photochemical effects can also cause damage, especially at short wavelengths.<ref name="iec-2060825-1">IEC 60825-1:2014 {{cite book |url=https://webstore.iec.ch/publication/3587 |title=Safety of laser products - Part 1: Equipment classification and requirements |publisher=[[International Electrotechnical Commission]] |edition=3rd |language=EN, FR, ES |pages=220 |date=2014-05-15 }} - [[List of IEC technical committees|TC 76]] - Optical radiation safety and laser equipment</ref>

The IEC 60825 series gives guidance on safety relating to exposure of the eye to lasers, which are high luminance sources. The IEC 62471 series gives guidance for evaluating the photobiological safety of lamps and lamp systems including luminaires. Specifically it specifies the exposure limits, reference measurement technique and classification scheme for the evaluation and control of photobiological hazards from all electrically powered incoherent broadband sources of optical radiation, including LEDs but excluding lasers, in the wavelength range from {{val|200|u=nm}} through {{val|3000|u=nm}}. This standard was prepared as Standard CIE S 009:2002 by the International Commission on Illumination.