Incident Luminous Flux Formula

Fx Copy
LaTeX Copy
Incident Luminous Flux refers to the total amount of visible light energy emitted or received by a surface per unit time. Check FAQs
Φi=Φrρ
Φi - Incident Luminous Flux?Φr - Reflected Luminous Flux?ρ - Reflection Factor?

Incident Luminous Flux Example

With values
With units
Only example

Here is how the Incident Luminous Flux equation looks like with Values.

Here is how the Incident Luminous Flux equation looks like with Units.

Here is how the Incident Luminous Flux equation looks like.

2Edit=5.1Edit2.55Edit
You are here -
HomeIcon Home » Category Engineering » Category Electronics and Instrumentation » Category Measurement of Physical Parameters » fx Incident Luminous Flux

Incident Luminous Flux Solution

Follow our step by step solution on how to calculate Incident Luminous Flux?

FIRST Step Consider the formula
Φi=Φrρ
Next Step Substitute values of Variables
Φi=5.1lm2.55
Next Step Prepare to Evaluate
Φi=5.12.55
LAST Step Evaluate
Φi=2lm

Incident Luminous Flux Formula Elements

Variables
Incident Luminous Flux
Incident Luminous Flux refers to the total amount of visible light energy emitted or received by a surface per unit time.
Symbol: Φi
Measurement: Luminous FluxUnit: lm
Note: Value should be greater than 0.
Reflected Luminous Flux
Reflected Luminous Flux is defined as is a measure of the power of reflected visible light produced by a light source or light fitting.
Symbol: Φr
Measurement: Luminous FluxUnit: lm
Note: Value should be greater than 0.
Reflection Factor
Reflection Factor is the ratio of the total amount of radiation, as of light, reflected by surface to total amount of radiation incident on surface.
Symbol: ρ
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other formulas in Light Measurement category

​Go Area affected by Light Incident
A=LpH
​Go Intensity on Solid Angle
I=ΦmΩ
​Go Flux at Solid Angle
Φm=IΩ
​Go Reflected Luminous Flux
Φr=Φiρ

How to Evaluate Incident Luminous Flux?

Incident Luminous Flux evaluator uses Incident Luminous Flux = Reflected Luminous Flux/Reflection Factor to evaluate the Incident Luminous Flux, The Incident Luminous Flux formula is defined as The ratio of the total amount of radiation, as of light, incident by a surface to the total amount of radiation incident on the surface. Incident Luminous Flux is denoted by Φi symbol.

How to evaluate Incident Luminous Flux using this online evaluator? To use this online evaluator for Incident Luminous Flux, enter Reflected Luminous Flux r) & Reflection Factor (ρ) and hit the calculate button.

FAQs on Incident Luminous Flux

What is the formula to find Incident Luminous Flux?
The formula of Incident Luminous Flux is expressed as Incident Luminous Flux = Reflected Luminous Flux/Reflection Factor. Here is an example- 2 = 5.1/2.55.
How to calculate Incident Luminous Flux?
With Reflected Luminous Flux r) & Reflection Factor (ρ) we can find Incident Luminous Flux using the formula - Incident Luminous Flux = Reflected Luminous Flux/Reflection Factor.
Can the Incident Luminous Flux be negative?
No, the Incident Luminous Flux, measured in Luminous Flux cannot be negative.
Which unit is used to measure Incident Luminous Flux?
Incident Luminous Flux is usually measured using the Lumen[lm] for Luminous Flux. Candela Steradian[lm], Lux Square Meter[lm] are the few other units in which Incident Luminous Flux can be measured.
Copied!