Azure Radiance

Radiance

In radiometry, radiance is the radiant flux emitted, reflected, transmitted or received by a given surface, per unit solid angle per unit projected area. Radiance is used to characterize diffuse emission and reflection of electromagnetic radiation, and to quantify emission of neutrinos and other particles. The SI unit of radiance is the watt per steradian per square metre. It is a directional quantity: the radiance of a surface depends on the direction from which it is being observed.

Azure (color)

Azure is the color between cyan and blue on the color wheel. It is often described as the color of the sky on a clear day.

azure

Noun

1. The clear blue colour of the sky; also, a pigment or dye of this colour.
2. A blue colour on a coat of arms, represented in engraving by horizontal parallel lines.

Adjective

1. Sky blue; resembling the clear blue colour of the unclouded sky.
2. Cloudless.

radiance

Noun

1. The quality or state of being radiant; shining, bright or splendid.
2. The flux of radiation emitted per unit solid angle in a given direction by a unit area of a source.