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**DONOTDELETE**
Guest
Hi,
Can anyone help me with the following problem?
I am trying to build an illumination unit with white LEDs which is supposed to illuminate a humans face, therefore also the eye.
According to EN 60825 LEDs are íncluded wherever the word Laser is used. To calculate the "maximum permissible exposure MPE" I need to know the emitted light power in W and W per sqaremeter, and that for the different wavelengths included in white light. The luxeon spec just has the lm and lux in it and I don't know how I can calculate or measure these values correctly.
Any help would be appretiated.
Regards
David
Can anyone help me with the following problem?
I am trying to build an illumination unit with white LEDs which is supposed to illuminate a humans face, therefore also the eye.
According to EN 60825 LEDs are íncluded wherever the word Laser is used. To calculate the "maximum permissible exposure MPE" I need to know the emitted light power in W and W per sqaremeter, and that for the different wavelengths included in white light. The luxeon spec just has the lm and lux in it and I don't know how I can calculate or measure these values correctly.
Any help would be appretiated.
Regards
David