Light field - Wikipedia

[Gunnar Larson]

https://en.wikipedia.org/wiki/Light_field#:~:text=The%20light%20field%20is%20a,is%20given%20by%20its%20radiance
.

The *light field* is a vector function
<https://en.m.wikipedia.org/wiki/Vector-valued_function> that describes the
amount of light <https://en.m.wikipedia.org/wiki/Light> flowing in every
direction through every point in space. The space of all possible *light
rays <https://en.m.wikipedia.org/wiki/Light_rays>* is given by the
five-dimensional
<https://en.m.wikipedia.org/wiki/Five-dimensional_space> *plenoptic
function*, and the magnitude of each ray is given by its radiance
<https://en.m.wikipedia.org/wiki/Radiance>. Michael Faraday
<https://en.m.wikipedia.org/wiki/Michael_Faraday> was the first to propose
that light should be interpreted as a field, much like the magnetic fields
on which he had been working.[1]
<https://en.m.wikipedia.org/wiki/Light_field#cite_note-1> The phrase *light
field* was coined by Andrey Gershun
<https://en.m.wikipedia.org/wiki/Andrey_Aleksandrovich_Gershun> in a
classic 1936 paper on the radiometric properties of light in
three-dimensional space.
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