FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Luminous Intensity Formula

Fx Copy

LaTeX Copy

Luminous intensity is a measure of the amount of light emitted by a light source in a specific direction. It quantifies the brightness or concentration of light in that direction. Check FAQs

I v = \frac{Lm}{ω}

I_v - Luminous Intensity?Lm - Lumen?ω - Solid Angle?

Luminous Intensity Example

With values

With units

Only example

Here is how the Luminous Intensity equation looks like with Values.

Here is how the Luminous Intensity equation looks like with Units.

Here is how the Luminous Intensity equation looks like.

1.55 = \frac{41.85}{27}

1.55cd = \frac{41.85cd*sr}{27sr}

1.55 = \frac{41.85}{27}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electrical » Category

Utilization of Electrical Energy » fx Luminous Intensity

Luminous Intensity Solution

Follow our step by step solution on how to calculate Luminous Intensity?

FIRST Step Consider the formula

I v = \frac{Lm}{ω}

Next Step Substitute values of Variables

∴

I v = \frac{41.85cd*sr}{27sr}

Next Step Convert Units

∴

I v = \frac{41.85lm}{27sr}

Next Step Prepare to Evaluate

∴

I v = \frac{41.85}{27}

LAST Step Evaluate

∴

I v = 1.55cd

Luminous Intensity Formula Elements

Variables

Luminous Intensity

Luminous intensity is a measure of the amount of light emitted by a light source in a specific direction. It quantifies the brightness or concentration of light in that direction.

Symbol: I_v

Measurement: Luminous IntensityUnit: cd

Note: Value can be positive or negative.

Formulas to find Luminous Intensity

Lumen

Lumen is a unit of measurement that quantifies the total amount of visible light emitted by a light source. It represents the brightness or light output of the source, irrespective of direction.

Symbol: Lm

Measurement: Luminous FluxUnit: cd*sr

Note: Value can be positive or negative.

Formulas to find Lumen

Solid Angle

Solid angle is a measure of the extent of a cone-shaped region in three-dimensional space, originating from a point and defined by its vertex angle. It quantifies the spatial coverage.

Symbol: ω

Measurement: Solid AngleUnit: sr

Note: Value can be positive or negative.

Formulas to find Solid Angle

Other formulas in Advanced Illumination category

Go Specific Consumption

S.C. = \frac{2 \cdot P in}{CP}

Go Utilization Factor of Electrical Energy

UF = \frac{L r}{L e}

Go Beer-Lambert Law

I t = I o \cdot \exp (- β \cdot c \cdot x)

Go Fresnel's Law of Reflection

r λ = \frac{{(n 2 - n 1)}^{2}}{{(n 2 + n 1)}^{2}}

How to Evaluate Luminous Intensity?

Luminous Intensity evaluator uses Luminous Intensity = Lumen/Solid Angle to evaluate the Luminous Intensity, Luminous intensity often referred to as candlepower, is a fundamental photometric quantity that describes the amount of visible light emitted by a light source in a specific direction per unit solid angle. It takes into account both the power of the light source and the human eye's sensitivity to different wavelengths of light. Luminous Intensity is denoted by I_v symbol.

How to evaluate Luminous Intensity using this online evaluator? To use this online evaluator for Luminous Intensity, enter Lumen (Lm) & Solid Angle (ω) and hit the calculate button.

FAQs on Luminous Intensity

What is the formula to find Luminous Intensity?

The formula of Luminous Intensity is expressed as Luminous Intensity = Lumen/Solid Angle. Here is an example- 1.55 = 41.85/27.

How to calculate Luminous Intensity?

With Lumen (Lm) & Solid Angle (ω) we can find Luminous Intensity using the formula - Luminous Intensity = Lumen/Solid Angle.

Can the Luminous Intensity be negative?

Yes, the Luminous Intensity, measured in Luminous Intensity can be negative.

Which unit is used to measure Luminous Intensity?

Luminous Intensity is usually measured using the Candela[cd] for Luminous Intensity. Candle (International)[cd], Decimal Candle[cd], Hefner Candle[cd] are the few other units in which Luminous Intensity can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Luminous Intensity Formula

Luminous Intensity Example

Luminous Intensity Solution

Luminous Intensity Formula Elements

Other formulas in Advanced Illumination category

How to Evaluate Luminous Intensity?

FAQs on Luminous Intensity

Variable Name