BS EN 62471-5:2015

What is BS EN 62471-5 - Image projectors about?  

BS EN 62471-5 is an international standard used for the Photobiological safety of lamps and lamp systems. This ensures the safety of your client while installing these image projectors.  

BS EN 62471-5 provides requirements regarding the photobiological safety of the optical radiation emitted by image projectors. The scope of this part of IEC 62471 is photobiological safety of image projectors including the emissions from laser-illuminated projectors that fulfil the requirements as specified in IEC 60825-1:2014, 4.4 and for which visible light emission has been excluded from classification in IEC 60825-1. 

This part of IEC 62471 provides requirements regarding: 

• Optical radiation safety assessment of image projectors 
• Projector risk groups 
• Testing conditions and measurement conditions 
• Manufacturer’s requirements including user information 

Note: This part of IEC 62471 does not deal with other hazards such as electrical, mechanical, or fire hazards  

Note: This part of IEC 62471 does not address safety requirements for laser display products where collimated laser beams — generally scanned — are employed. It does address those laser-illuminated projectors that employ a laser source to illuminate, for example, a micro-electromechanical system (MEMS) without scanned beams or a crystal-based display projector system. 

Note:  Image projectors containing lasers are subject to those provisions of IEC 60825-1 applicable to the embedded laser. See IEC 60825-1:2014, 4.4 for which visible light emission has been excluded from the laser product classification. 

Note: This part of IEC 62471 includes projectors for only visible image projection and does not include ultraviolet (UV) projectors, infrared (IR) projectors, general lighting service (GLS) lamps (GLS; defined in IEC 62471) or projector lamp systems used for general lighting, which are treated in separate International Standards. 

Who is BS EN 62471-5 - Image projectors for? 

BS EN 62471-5 on Photobiological safety of lamps and lamp systems is useful for: 

• Manufacturers of lamps 
• Manufacturers of electronic devices  
• Manufacturers of display devices 
• Electronic engineers 

Why should you use BS EN 62471-5 - Image projectors?  

Photobiological testing is useful to manufacturers in evaluating the safety of lamps and lamp systems, including luminaires. 

By using BS EN 62471-5 you can determine the risk group of any lamp or any product incorporating a lamp. BS EN 62471-5 specifies the test conditions and measuring methods for image projections. These measuring methods are as follows:  

• Helps in measuring the throw ratio 
• The accessible emission helps in determining the distance 
• The position and size of the apparent source are measured 
• Useful in measuring radiance 

Applying BS EN 62471-5 you can ensure the safety of your client by informing the hazards that may occur during the installation of these image projectors. This helps in manufacturing good quality image projectors.