Thank you for your reply
this site did not work (https://app.knovel.com/uc/)
for the conversion there is an integration over the wavelength which must be carried out over the visible spectrum. but I can't insert this integration into the Atlas Silvaco code!!!
I am trying to simulate an OLED via Atlas SilvacoI want to know how to convert light power (watt/um) into luminance (cd/m2) or the syntax to do that in Atlas silvaco.THANKS