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Light Illumination Converter

Light illumination is the amount of light illuminating a point on a surface. Illuminating sources can be natural (daylight) or from lamps, lighter, etc.

 

The definition of Light Illumination determines the amount of light that covers a surface. If Ø is the luminous flux and S is the area of the given surface then the illuminance E is determined by E = ∅/S.

Light converters

Centimeter candle:
cm*c
Flame:
fl
Foot candle :
ft*c
Lumen/square cm:
lm/cm2
Lumen/square foot:
lm*ft2
Lumen/square meter:
lm/m2
Lux:
lx
Meter candle:
mc
Nox :
nx
Phot:
ph
Watt/square centimeter:
W/cm2

Table of Contents:

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    Formula

    L=I/S

    Where,
    I is the luminous intensity and S is the area of the source surface perpendicular to the given direction.

    The unit of illumination in SI system is lx, and in foot-pound system it is foot-candle. One lx is the illuminance of 1 m² surface area uniformly lighted by 1 lm of luminous flux. The following drawing explains this definition. One foot-candle is 10.76 lux.

     

    Example:
    Convert the 5 centimeter candle to various light illumination units.

    Solution:
    centimeter candle = 5
    flame = 1161.288
    foot candle = 4645.152
    lumen/square centimeter = 5
    lumen/square foot = 4645.152
    lumen/square meter = 50000
    lux = 50000
    meter candle = 50000
    nox = 50000000
    phot = 5
    watt/square centimeter = 0.007299999999999999