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25 Mar, 2016 1856 Views Author: root

EN62471 Light Bio Safety Testing Standards

IEC/EN62471 is the European Union’s testing standards for laser products (including LED). IEC/EN 62471 is designed to evaluate the optical radiation hazards associated with different lamps and lamp systems. And it is also used to replace the IEC/EN60825 standards in the requirements of the LED product energy level. It increased the requirements of the optical biology, including radiation intensity, radiant brightness etc. This standard does the hazard classification according to the test data on the product, including the exemption level, low damage, medium hazard, and high hazard level. Among them, the EU part of the standard EN62471:2008 has been implemented in 2009.09.01, the LED part of EN60825 will be completely ineffective in 2010.09.01.

IEC/EN62471 Standard Background:
1.IEC/EN60825 is mainly for the single wavelength of the light energy testing;
2 IEC/EN62471 is mainly for the wide band of light measurement, and consider the time of eye and skin reacting to light, angle, sensitivity and other aspect to do the calculation.

IIEC/EN62471 Applicable Products: all the lights and lights system except laser. (single wavelength laser is easy to test, the ordinary lamp may be a wide band light source because of the influence of light emitting body and diffuser, lens, optical components and other devices.)

IEC/EN62471 Wavelength range of testing: 3000nm-200nm optical radiation

IEC/EN62471 Parameters and Test object:

1 Irradiance (radiation flux divided by the area of the unit, unit: W? M-2)
2 Radiance (irradiance divided by the field, can be converted through irradiance)

Test object
1 The ultraviolet harm of skin and eyes
2.Near UV hazard (315nm-400nm) of eyes
3 Retina blue light hazard
4 Retina blue light hazard (light source)
5 Retinal thermal hazard
6 Retinal thermal hazard (for weak visual stimuli) (780nm-1400nm)
7 Infrared radiation hazard of eyes (780nm-3000nm)
8 Skin heat hazard (380nm-3000nm)

Judgment of results

  1. Continuous Light: no danger; 1 level danger (low risk); 2 level danger (Intermediate risk); 3 level dangerous (high risk)
  2. Pulse Light: 1. If exceed radiation limits, then in accordance with the 3 level danger; 2 The single pulse no exceed radiation limits in accordance with no danger; 3 The multi pulse light no exceed radiation limits in accordance with continuous lamp classification method.

Lisun developed IEC62471/EN62471-A LED optical radiation measurement system can apply in the general measurement of optical radiation safety in accordance with the requirements of IEC-CTL and the IEC62471 for laboratory. Lisun Electronic (Shanghai) office is committed to the development and after-sales maintenance of lighting instrument, EMI / EMC testing system and safety testing instruments in the domestic and global market. The full range of products of Lisun are in strict accordance with the quality management and control of ISO9001:2008 requirements for R & D and production; Lisun is also the member unit of global lighting CIE association, all products are according to CIE requirements; in addition, all products of Lisun are certified by CE and get the qualification of the EU.


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