Quote:
Originally Posted by newday07
However, the strange thing is that there are no data on LED emissions and safety tests.
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If you want information on standards and safety testing methodologies for LEDs, check IEC 62471-2006 (Photobiological safety of lamps and lamp systems) for a standard based on an American developed standard in 2005 called ANSI/IESNA RP-27 which were extended to cover LED light sources.
One item to note is that under IEC 62471-2006 or ANSI/IESNA RP-27, if a device is determined to be
potentially a photobiological hazard, it must display at least a warning sign (check a laser pointer for an example of such a warning).
A quick check of various web sites from LED manufacturers will yield an overabundance of information. One example being
Eye Safety from OSRAM's site. Please note that they are discussing eye safety and exposure as if you were looking directly into the IR LEDs at a 200mm distance. For information on visible light LEDs used in Cree's products, see
Eye Safety With LED Components. I picked these two samples since I was already familiar with OSRAM since the IR touch screen I disassembled used OSRAM LEDs and phototransistors and Cree since I owned a Cree flashlight.