How to Convert Lux to Candela

••• Chonticha Vatpongpee / EyeEm/EyeEm/GettyImages

The lux is the International System of Units unit for luminous emittance. It’s used to measure the apparent intensity of light as it strikes a surface. The candela is the International System of Units (SI) unit for luminous intensity. It measures the apparent intensity of a light source in a specific direction.

    Convert a measurement in lux (lx) to a measurement in lumen (lm). The lumen is the SI unit of luminous flux, which measures the perceived power of light. The difference between lux and lumen is that lux takes the area of luminous flux into account, whereas the lumen does not. The lux may therefore be expressed in terms of lumen per unit area. A lux is equal to 1 lumen per square meter.

    Calculate a measurement in lumen to a measurement in candela (cd). The candela takes the radiation angle into account, which is measured in steradians (sr). The steradian is the SI unit for a solid angle and is equal to 1/4 pi of the entire sphere. A lumen is equal to 1 candela x steradian.

    Express the lux in terms of the candela. Step 1 shows that 1 lx = 1 lm / m ^2. Step 2 shows that 1 lm = 1 cd x sr. This shows that 1 lx = 1 lm / m^2 = 1 cd x sr / m^2, so 1 lx = 1 cd x sr / square meter.

    Convert lux to candela. The equation 1 lx = 1 cd x sr / square meter is equivalent to 1 cd = 1 lm x m^2 / sr. A candela is therefore equal to 1 lumen x square meter per steradian.

Related Articles

How to Measure Lumens
How to Convert Candle Power to Lumens
How to Calculate Light Intensity
How to Find the Volume of a Sphere in Terms of Pi
How to Calculate Foot Candle
How to Calculate a Circular Area
What Are Lumens of Light?
How to Measure Lumens
What Astronomical Instrument Measures the Brightness...
How to Convert Centimeters to Centimeters Squared
How To: Degree to Radian Conversion
How to Convert Photons to Joules
How to Calculate Perimeter and Area Ratio
How to Calculate the Total Area
How to Convert KWH to KVA
How to Convert Joules to Grams
How to Calculate Reflectance
How to Convert Lumens to Candlepower
How to Convert NITS to LUX

Dont Go!

We Have More Great Sciencing Articles!