What is Reflectance?
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China
What is Reflectance?
Reflectance Definition
Reflectance is defined as the ratio of the radiant flux reflected from a surface to the incident radiant flux, and it is unitless.
Types of Reflectance
Specular (mirror-like)
Diffuse (scattering)
Reflectivity Definition
Reflectivity is the property of a material to reflect light or radiation and remains consistent regardless of the material’s thickness.
Reflectance Measurement
Reflectance can be measured relatively using a reference plate or absolutely by comparing to the light source.
Solar Reflectance Index
This index indicates a material’s ability to reflect solar energy, ranging from 0 to 1.
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