[SOLVED] converting lux to W/m2

[yashiro32]

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

 

[htg]

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.

 

[keith1200rs]

https://www.easyunitconverter.com/illuminance-unit-conversion/illuminance-unit-converter.aspx

Keith

 

[htg]

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

 

[keith1200rs]

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:

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Keith.