Perfectly Diffuse Radiator

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Perfectly Diffuse Radiator

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A body that emits radiant energy in accordance with Lambert law. The radiant intensity emitted in any direction from a unit area of such a radiator varies as the cosine of the angle between the normal to the surface and the direction of the radiation. Compare diffuse radiation, isotropic radiator. </dd>
When viewed from a distance, an incandescent perfectly diffuse radiator appears as a uniformly illuminated flat surface regardless of its actual shape or orientation. [[/a>|/a> ]]

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use