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Prove that irradiance, E, at an axial point, P, due to a disk-shaped extended-area lambertian source with a radius, R, located a distance, r, away (Figure 1) can be expressed by Equation 1 in Axial irradiance due to an extended area source:
| E = πLR2 / (R2 + r2 ) | (1) |
where, L, is the radiance of the extended-area source.
| CITATION: Jonasz M. 2009. Problem: Axial irradiance due to an extended-area source (www.tpdsci.com/Tpc/RdmIrdExtAreaSrc_P.php). In: Top. Part. Disp. Sci. (www.tpdsci.com). |
HISTORY: Published: 05-Jan-2009 Modified: 22-Jun-2009 Peer-reviewed: 12-Feb-2009 |
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