Conversion to lux (Light intensity)

In summary, to convert 59.7 mw/m^2 to lux, you need to know the wavelength of the light. Once you know the wavelength, you can use the human eye sensitivity function to convert the units.
  • #1
Petrucciowns
74
0
How would I go about converting 59.7 mw/m^2 to lux?

I would appreciate any help I can't find an equality.
 
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  • #2
lux

Petrucciowns said:
How would I go about converting 59.7 mw/m^2 to lux?

I would appreciate any help I can't find an equality.

Hi Petrucciowns! :smile:

1 lux = 1 lumen per m2

1 lumen = 1 candela steradian (http://en.wikipedia.org/wiki/Lumen_(unit))

and (http://en.wikipedia.org/wiki/Candela#Definition) …
The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of 1⁄683 watt per steradian.
 
  • #3
Yes, but those conversions don't match up with the variables that I have.
 
  • #4
Petrucciowns said:
How would I go about converting 59.7 mw/m^2 to lux?

I would appreciate any help I can't find an equality.

It depends on the wavelength.

For 555 nm light, 1 W/m^2 is equivalent to 683 lux.

For other wavelengths, multiply that by the human eye sensitivity function.
 

FAQ: Conversion to lux (Light intensity)

What is the conversion factor for converting from watts per square meter to lux?

The conversion factor for converting from watts per square meter to lux is 1 lux = 1 watt per square meter. This means that the light intensity expressed in watts per square meter is equal to the light intensity expressed in lux.

How do I convert from foot-candles to lux?

To convert from foot-candles to lux, use the conversion factor of 1 foot-candle = 10.764 lux. Simply multiply the foot-candle value by 10.764 to get the equivalent value in lux.

What is the formula for converting from lumens to lux?

The formula for converting from lumens to lux is: lux = lumens / area in square meters. This means that the light intensity in lux can be calculated by dividing the lumens by the area in square meters.

Can lux measurements be used to determine the brightness of natural light?

Yes, lux measurements can be used to determine the brightness of natural light. Lux is a unit of measurement for light intensity, so it can be used to measure the brightness of any light source, including natural light.

Is there a difference between lux and lumens?

Yes, there is a difference between lux and lumens. Lux is a measurement of light intensity, while lumens is a measurement of the total amount of visible light emitted by a light source. In other words, lux measures how bright a light is at a certain distance, while lumens measures the overall brightness of the light source.

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