[SOLVED] converting lux to W/m2

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yashiro32

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lux w/m2

Hi,

is there any formulas or equations to convert measured illuminance in Luxs to irradiance in W/m2

or

convert measured luminance in Cd/m2 to irradiance in W/m2
 

1 lx = 1 lm/m^2, what 1 lumen is depends upon the kind of light, e.g. for white light 1 lm = 5mW, for green light 1 lm = 1/683 W.
 

Keith, this converter gives results corresponding to maximum sensitivity of the eye (green light) WITHOUT MENTIONING IT.
 

There are other online converters - I cannot remember which ones I have used in the past. I usually end up looking up the values based on wavelength of interest.

Keith.

Added after 1 minutes:

This link may be useful:



Keith.
 

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