scope:

This part of IEC 62471 provides requirements regardingphotobiological safety of the optical radiation emitted by imageprojectors. This part of IEC 62471 does not deal with other hazardssuch as electrical, mechanical or fire hazards. This part of IEC62471 provides requirements regarding: ? optical radiation safetyassessment of image projectors; ? projector risk groups; ? testingconditions and measurement conditions; ? manufacturer?srequirements including user information. The scope of this part ofIEC 62471 is photobiological safety of image projectors includingthe emissions from laser-illuminated projectors that fulfill therequirements as specified in IEC 60825-1:2014, 4.4 and for whichvisible light emission has been excluded from classification in IEC60825-1. This part of IEC 62471 does not address safetyrequirements for laser display products where collimated laserbeams ? generally scanned ? are employed. It does address thoselaserilluminated projectors that employ a laser source toilluminate, for example, a micro-electromechanical system (MEMS)without scanned beams or crystal-based display projector system.NOTE Image projectors containing lasers are subject to thoseprovisions of IEC 60825-1 applicable to the embedded laser. See IEC60825-1:2014, 4.4 for which visible light emission has beenexcluded from the laser product classification. This part of IEC62471 includes projectors for only visible image projection anddoes not include ultraviolet (UV) projectors, infrared (IR)projectors, general lighting service (GLS) lamps (GLS; defined inIEC 62471) or projector lamp systems used for general lighting,which are treated in separate International Standards.