Illumination Solution

STEP 0: Pre-Calculation Summary
Formula Used
Illumination Intensity = Luminous Flux/Area of Illumination
Ev = F/A
This formula uses 3 Variables
Variables Used
Illumination Intensity - (Measured in Lux) - Illumination intensity refers to the level or strength of light in a given area. It quantifies the amount of light reaching a surface and is typically measured in units such as lux or foot-candles.
Luminous Flux - (Measured in Lumen) - Luminous flux is a measure of the total amount of light emitted by a light source in all directions. It quantifies the overall brightness or output of the source.
Area of Illumination - (Measured in Square Meter) - Area of illumination refers to the size or extent of the space covered by light from a source, determining the reach and coverage of light in that area.
STEP 1: Convert Input(s) to Base Unit
Luminous Flux: 42 Lumen --> 42 Lumen No Conversion Required
Area of Illumination: 41 Square Meter --> 41 Square Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ev = F/A --> 42/41
Evaluating ... ...
Ev = 1.02439024390244
STEP 3: Convert Result to Output's Unit
1.02439024390244 Lux --> No Conversion Required
FINAL ANSWER
1.02439024390244 1.02439 Lux <-- Illumination Intensity
(Calculation completed in 00.004 seconds)

Credits

Created by Prahalad Singh
Jaipur Engineering College and Research Centre (JECRC), Jaipur
Prahalad Singh has created this Calculator and 100+ more calculators!
Verified by Payal Priya
Birsa Institute of Technology (BIT), Sindri
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15 Illumination Parameters Calculators

Number of Lamps Required for Illumination
Go Number of Lamp = (Illumination Intensity*Area of Illumination)/(Luminous Flux*Utilization Factor*Maintenance Factor)
Index of Refraction
Go Refractive Index of Medium 1 = (Refractive Index of Medium 2*sin(Refracted Angle))/sin(Incident Angle)
Luminance
Go Luminance = Luminous Intensity/(Area of Illumination*cos(Illumination Angle))
Luminous Flux
Go Luminous Flux = (Area of Illumination*Luminous Intensity)/(Length of Illumination^2)
Reduction Factor
Go Reduction Factor = Mean Spherical Candle Power/Mean Horizontal Candle Power
Mean Horizontal Candle Power
Go Mean Horizontal Candle Power = Sum of Candle Power/Number of Lamp
Solid Angle
Go Solid Angle = Area of Illumination/(Radius of Illumination^2)
Maintenance Factor
Go Maintenance Factor = Final Illumination/Initial Illumination
Illumination
Go Illumination Intensity = Luminous Flux/Area of Illumination
Mean Hemi-Spherical Candle Power
Go Mean Hemi Spherical Candle Power = Luminous Flux/(2*pi)
Mean Spherical Candle Power
Go Mean Spherical Candle Power = Luminous Flux/(4*pi)
Lamp Efficiency
Go Lamp Efficiency = Luminous Flux/Input Power
Candle Power
Go Candle Power = Luminous Flux/Solid Angle
Lumens
Go Lumen = Candle Power*Solid Angle
Depreciation Factor
Go Depreciation Factor = 1/Maintenance Factor

Illumination Formula

Illumination Intensity = Luminous Flux/Area of Illumination
Ev = F/A

What is the Inverse Square law of illumination?

This law states that the Illuminance (E) at any point on a plane perpendicular to the line joining the point and source is inversely proportional to the square of the distance between the source and plane.

How to Calculate Illumination?

Illumination calculator uses Illumination Intensity = Luminous Flux/Area of Illumination to calculate the Illumination Intensity, The Illumination formula is defined as the number of lumens, falling on the surface, per unit area. It is denoted by symbol E and is measured in lumens per square meter or lux or meter-candela. Illumination Intensity is denoted by Ev symbol.

How to calculate Illumination using this online calculator? To use this online calculator for Illumination, enter Luminous Flux (F) & Area of Illumination (A) and hit the calculate button. Here is how the Illumination calculation can be explained with given input values -> 1.02439 = 42/41.

FAQ

What is Illumination?
The Illumination formula is defined as the number of lumens, falling on the surface, per unit area. It is denoted by symbol E and is measured in lumens per square meter or lux or meter-candela and is represented as Ev = F/A or Illumination Intensity = Luminous Flux/Area of Illumination. Luminous flux is a measure of the total amount of light emitted by a light source in all directions. It quantifies the overall brightness or output of the source & Area of illumination refers to the size or extent of the space covered by light from a source, determining the reach and coverage of light in that area.
How to calculate Illumination?
The Illumination formula is defined as the number of lumens, falling on the surface, per unit area. It is denoted by symbol E and is measured in lumens per square meter or lux or meter-candela is calculated using Illumination Intensity = Luminous Flux/Area of Illumination. To calculate Illumination, you need Luminous Flux (F) & Area of Illumination (A). With our tool, you need to enter the respective value for Luminous Flux & Area of Illumination and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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