What is radiant flux?
The primary concept is that of the radiant flux of a source, that is, the amount of radiant energy emitted into space in unit time. Usually, we consider only a fraction of the total flux, namely the flux within a relatively small solid angle in the direction of observation, for example, the flux that reaches the dispersing medium or the detecting system.
How to Calculate Solid Angle for Radiance?
Solid Angle for Radiance calculator uses Solid Angle for Radiance = (Surface Area for Radiance*cos(Angle for Radiance))/(Distance for Radiance^2) to calculate the Solid Angle for Radiance, Solid Angle for Radiance formula is defined as the flux flowing from a point source Q to a surface of
area dA at the (mean) distance a from Q is proportional to the solid angle. Solid Angle for Radiance is denoted by dω symbol.
How to calculate Solid Angle for Radiance using this online calculator? To use this online calculator for Solid Angle for Radiance, enter Surface Area for Radiance (dA), Angle for Radiance (φ) & Distance for Radiance (a) and hit the calculate button. Here is how the Solid Angle for Radiance calculation can be explained with given input values -> 0.017674 = (25*cos(0.5235987755982))/(35^2).