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Luminous Intensity in Direction Normal to Surface Formula

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Luminous Intensity Normal to Surface measures the brightness of light emitted or reflected from a surface in a specific direction, typically perpendicular to the surface. Check FAQs

I n = A \cdot L n

I_n - Luminous Intensity Normal to Surface?A - Surface Area?L_n - Luminance Normal to Surface?

Luminous Intensity in Direction Normal to Surface Example

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Here is how the Luminous Intensity in Direction Normal to Surface equation looks like with Values.

Here is how the Luminous Intensity in Direction Normal to Surface equation looks like with Units.

Here is how the Luminous Intensity in Direction Normal to Surface equation looks like.

10.545 = 28.5 \cdot 0.37

10.545cd = 28.5m² \cdot 0.37lx

10.545 = 28.5 \cdot 0.37

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Luminous Intensity in Direction Normal to Surface Solution

Follow our step by step solution on how to calculate Luminous Intensity in Direction Normal to Surface?

FIRST Step Consider the formula

I n = A \cdot L n

Next Step Substitute values of Variables

∴

I n = 28.5m² \cdot 0.37lx

Next Step Prepare to Evaluate

∴

I n = 28.5 \cdot 0.37

LAST Step Evaluate

∴

I n = 10.545cd

Luminous Intensity in Direction Normal to Surface Formula Elements

Variables

Luminous Intensity Normal to Surface

Luminous Intensity Normal to Surface measures the brightness of light emitted or reflected from a surface in a specific direction, typically perpendicular to the surface.

Symbol: I_n

Measurement: Luminous IntensityUnit: cd

Note: Value should be greater than 0.

Formulas to find Luminous Intensity Normal to Surface

Surface Area

Surface Area refers to the total area of a surface that light rays strike. This area determines the amount of light energy absorbed, reflected, or transmitted by the surface.

Symbol: A

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Surface Area

Luminance Normal to Surface

Luminance Normal to Surface is defined as a measure of wavelength-weighted power emitted by the light source in a particular direction per unit solid angle.

Symbol: L_n

Measurement: IlluminanceUnit: lx

Note: Value should be greater than 0.

Formulas to find Luminance Normal to Surface

Other formulas in Light Measurement category

Go Area affected by Light Incident

A = \frac{L p}{H}

Go Intensity on Solid Angle

I = \frac{Φ m}{Ω}

Go Flux at Solid Angle

Φ m = I \cdot Ω

Go Reflected Luminous Flux

Φ r = Φ i \cdot ρ

How to Evaluate Luminous Intensity in Direction Normal to Surface?

Luminous Intensity in Direction Normal to Surface evaluator uses Luminous Intensity Normal to Surface = Surface Area*Luminance Normal to Surface to evaluate the Luminous Intensity Normal to Surface, The Luminous Intensity in direction normal to surface formula is defined as is measure of wavelength-weighted power emitted by light source in particular direction per unit solid angle, based on luminosity function, standardized model of sensitivity of human eye. Luminous Intensity Normal to Surface is denoted by I_n symbol.

How to evaluate Luminous Intensity in Direction Normal to Surface using this online evaluator? To use this online evaluator for Luminous Intensity in Direction Normal to Surface, enter Surface Area (A) & Luminance Normal to Surface (L_n) and hit the calculate button.

FAQs on Luminous Intensity in Direction Normal to Surface

What is the formula to find Luminous Intensity in Direction Normal to Surface?

The formula of Luminous Intensity in Direction Normal to Surface is expressed as Luminous Intensity Normal to Surface = Surface Area*Luminance Normal to Surface. Here is an example- 10.545 = 28.5*0.37.

How to calculate Luminous Intensity in Direction Normal to Surface?

With Surface Area (A) & Luminance Normal to Surface (L_n) we can find Luminous Intensity in Direction Normal to Surface using the formula - Luminous Intensity Normal to Surface = Surface Area*Luminance Normal to Surface.

Can the Luminous Intensity in Direction Normal to Surface be negative?

No, the Luminous Intensity in Direction Normal to Surface, measured in Luminous Intensity cannot be negative.

Which unit is used to measure Luminous Intensity in Direction Normal to Surface?

Luminous Intensity in Direction Normal to Surface 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 in Direction Normal to Surface can be measured.

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Luminous Intensity in Direction Normal to Surface Formula

Luminous Intensity in Direction Normal to Surface Example

Luminous Intensity in Direction Normal to Surface Solution

Luminous Intensity in Direction Normal to Surface Formula Elements

Other formulas in Light Measurement category

How to Evaluate Luminous Intensity in Direction Normal to Surface?

FAQs on Luminous Intensity in Direction Normal to Surface

Variable Name