Light Power Calculator

✖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.ⓘ Surface Area [A]			+10% -10%
✖Irradiation is the radiation flux incident on a surface from all directions.ⓘ Irradiation [H]			+10% -10%

✖Power is a quantity permitting comparison of illuminances in the image planes of various optical systems.ⓘ Light Power [L_p]

⎘ Copy

👎

Formula

✖

Light Power

Formula

L p = A \cdot H

Example

22.23 W = 28.5 m² \cdot 0.78 W/m²

Calculator

LaTeX

Reset

👍

Download Light Measurement Formulas PDF PDF Image

Light Power Solution

STEP 0: Pre-Calculation Summary

Formula Used

Power = Surface Area*Irradiation
L_p = A*H
This formula uses 3 Variables

Variables Used

Power - (Measured in Watt) - Power is a quantity permitting comparison of illuminances in the image planes of various optical systems.
Surface Area - (Measured in Square Meter) - 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.
Irradiation - (Measured in Watt per Square Meter) - Irradiation is the radiation flux incident on a surface from all directions.

STEP 1: Convert Input(s) to Base Unit

Surface Area: 28.5 Square Meter --> 28.5 Square Meter No Conversion Required
Irradiation: 0.78 Watt per Square Meter --> 0.78 Watt per Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

L_p = A*H --> 28.5*0.78

Evaluating ... ...

L_p = 22.23

STEP 3: Convert Result to Output's Unit

22.23 Watt --> No Conversion Required

FINAL ANSWER

22.23 Watt <-- Power

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics and Instrumentation » Measurement of Physical Parameters » Light Measurement » Light Power

Credits

Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

Shobhit Dimri has created this Calculator and 900+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has verified this Calculator and 1900+ more calculators!

< Light Measurement Calculators

Reflected Luminous Flux

Go Reflected Luminous Flux = Incident Luminous Flux*Reflection Factor

Intensity on Solid Angle

Go Luminous Intensity = Magnetic Flux/Area Projected at Solid Angle

Flux at Solid Angle

Go Magnetic Flux = Luminous Intensity*Area Projected at Solid Angle

Area affected by Light Incident

Go Surface Area = Power/Irradiation

Light Power Formula

Power = Surface Area*Irradiation
L_p = A*H

What is light energy called?

Light energy is Electromagnetic radiation. It is referred to as the visible light of the electromagnetic spectrum. Light is radiant energy and is electromagnetic radiation that travels in a straight line and can be seen with the naked eye in a specific wavelength.

How to Calculate Light Power?

Light Power calculator uses Power = Surface Area*Irradiation to calculate the Power, The Light Power formula is defined as a quantity permitting comparison of illuminances in the image planes of various optical systems. Power is denoted by L_p symbol.

How to calculate Light Power using this online calculator? To use this online calculator for Light Power, enter Surface Area (A) & Irradiation (H) and hit the calculate button. Here is how the Light Power calculation can be explained with given input values -> 22.23 = 28.5*0.78.

FAQ

What is Light Power?

The Light Power formula is defined as a quantity permitting comparison of illuminances in the image planes of various optical systems and is represented as L_p = A*H or Power = Surface Area*Irradiation. 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 & Irradiation is the radiation flux incident on a surface from all directions.

How to calculate Light Power?

The Light Power formula is defined as a quantity permitting comparison of illuminances in the image planes of various optical systems is calculated using Power = Surface Area*Irradiation. To calculate Light Power, you need Surface Area (A) & Irradiation (H). With our tool, you need to enter the respective value for Surface Area & Irradiation and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search