Spectral Transmission Factor Solution

STEP 0: Pre-Calculation Summary
Formula Used
Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation
Tλ = Jλ'/G λ
This formula uses 3 Variables
Variables Used
Spectral Transmission Factor - Spectral Transmission Factor an instrument used to determine the relative intensity of various wavelengths in a spectrum of light.
Transmitted Spectral Emission - Transmitted Spectral Emission at a wave length λ.
Spectral Irradiation - Spectral Irradiation also known as spectral power density or spectral radiant flux, It describes the distribution of radiant power emitted by a source across the electromagnetic spectrum.
STEP 1: Convert Input(s) to Base Unit
Transmitted Spectral Emission: 3.89 --> No Conversion Required
Spectral Irradiation: 3.45 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Tλ = Jλ'/G λ --> 3.89/3.45
Evaluating ... ...
Tλ = 1.12753623188406
STEP 3: Convert Result to Output's Unit
1.12753623188406 --> No Conversion Required
1.12753623188406 1.127536 <-- Spectral Transmission Factor
(Calculation completed in 00.004 seconds)
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Created by Aman Dhussawat
GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY (GTBIT), NEW DELHI
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< 6 Methods of Lighting Calculators

Intensity of Light Transmitted
Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption Coefficient*Path Length)
Number of Floodlighting Units
Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux)
Spectral Transmission Factor
Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation
Spectral Reflection Factor
Spectral Reflection Factor = Reflected Spectral Emission/Spectral Irradiation
Spectral Luminous Efficacy
Spectral Luminous Efficacy = Maximum Sensitivity*Photopic Efficiency Value
Luminance for Lambertian Surfaces
Luminance = Illumination Intensity/pi

Beer-Lambert Law
Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption per Concentration Coefficient*Concentration of Absorption Material*Path Length)
Fresnel's Law of Reflection
Reflection Loss = (Refractive Index of Medium 2-Refractive Index of Medium 1)^2/(Refractive Index of Medium 2+Refractive Index of Medium 1)^2
Refracted Angle using Snell's Law
Refracted Angle = arcsinh((Refractive Index of Medium 1*sin(Incident Angle))/(Refractive Index of Medium 2))
Incident Angle using Snell's Law
Incident Angle = arcsinh((Refractive Index of Medium 2*sin(Refracted Angle))/(Refractive Index of Medium 1))
Intensity of Light Transmitted
Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption Coefficient*Path Length)
Illumination by Lambert Cosine Law
Illumination Intensity = (Luminous Intensity*cos(Illumination Angle))/(Length of Illumination^2)
Number of Floodlighting Units
Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux)
Lambert's Cosine Law
Illuminance at Angle of Incidence = Illumination Intensity*cos(Incident Angle)
Spectral Transmission Factor
Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation
Spectral Reflection Factor
Spectral Reflection Factor = Reflected Spectral Emission/Spectral Irradiation
Utilization Factor of Electrical Energy
Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source
Spectral Luminous Efficacy
Spectral Luminous Efficacy = Maximum Sensitivity*Photopic Efficiency Value
Inverse Square Law
Luminance = Intensity of Transmitted Light/Distance^2
Specific Consumption
Specific Consumption = (2*Input Power)/Candle Power
Luminance for Lambertian Surfaces
Luminance = Illumination Intensity/pi
Luminous Intensity
Luminous Intensity = Lumen/Solid Angle

Spectral Transmission Factor Formula

Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation
Tλ = Jλ'/G λ

What is meant by luminous transmission factor?

Luminous transmission factor (LTF) expresses the overall effect of a filter on a standard eye viewing a standard light source. The standard source currently used is determined by the Commission Internationale de l'Eclairage (CIE) as standard illuminant D65, which replicates a daylight source.

How to Calculate Spectral Transmission Factor?

Spectral Transmission Factor calculator uses Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation to calculate the Spectral Transmission Factor, The Spectral Transmission Factor formula is defined as an instrument used to determine the relative intensity of various wavelengths in a spectrum of light. Spectral Transmission Factor is denoted by Tλ symbol.

How to calculate Spectral Transmission Factor using this online calculator? To use this online calculator for Spectral Transmission Factor, enter Transmitted Spectral Emission (Jλ') & Spectral Irradiation (G λ) and hit the calculate button. Here is how the Spectral Transmission Factor calculation can be explained with given input values -> 1.127536 = 3.89/3.45.

FAQ

What is Spectral Transmission Factor?
The Spectral Transmission Factor formula is defined as an instrument used to determine the relative intensity of various wavelengths in a spectrum of light and is represented as Tλ = Jλ'/G λ or Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation. Transmitted Spectral Emission at a wave length λ & Spectral Irradiation also known as spectral power density or spectral radiant flux, It describes the distribution of radiant power emitted by a source across the electromagnetic spectrum.
How to calculate Spectral Transmission Factor?
The Spectral Transmission Factor formula is defined as an instrument used to determine the relative intensity of various wavelengths in a spectrum of light is calculated using Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation. To calculate Spectral Transmission Factor, you need Transmitted Spectral Emission (Jλ') & Spectral Irradiation (G λ). With our tool, you need to enter the respective value for Transmitted Spectral Emission & Spectral Irradiation 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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