Light Field

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Light Field

 

the field of a light vector (seeVECTOR FIELD). The theory of light fields is a division of theoretical photometry, in which the distribution of illuminance is found by applying general methods for calculating the spatial distribution of luminous flux. The projection of a light vector on any direction passing through a point is equal to the difference in illuminance of two sides of a small area that is located at this point and is perpendicular to the given direction. The magnitude and position of the light vector are independent of the system of coordinates. The theory of light fields makes use of the concept of light lines, which is analogous to the concept of lines of force in the classical theory of physical fields.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in classic literature ?
The latter led us across a small parade ground, where a battery of light field guns was parked, and toward a log building, in front of which rose the flagstaff.
Meyer has developed a novel sensor system, the laser deflection scanner, which can acquire high resolution light fields of transparent objects.
They cover from coherent singular optics to correlation optics, edge diffraction/dislocation waves, spatial correlation phase singularities in partially coherent light fields, vector singularities in partially polarized light fields, phase singularities in polychromic (white light) fields, a survey of crystal singular optics, and applications of correlation singular optics.
According to the basic theory of Fourier Optics, the input and output light fields of an ideal spatial filter have the following relation:
Goldluecke, "Datasets and benchmarks for densely sampled 4d light fields," in Annual Workshop on Vision, Modeling and Visualization: VMV, pp.
The Army is looking to replace its old 105 mm light fields guns with a mix of towed, mounted and wheeled artillery.
The first is the frequency comb technique [14] which permitted attaining mutual coherence between consecutive pulses of a femtosecond source, i.e., generation of light fields with not only identical field envelopes envelopes by also field waveforms from pulse to pulse.
Korotkova explores some natural and artificial light fields that are stochastic in nature and limited in space to narrow channels, which she calls stochastic beam-like fields, or simple stochastic beams.
TEHRAN (FNA)- A team of international researchers managed to teleport photonic qubits with extreme reliability by means of the quantum-mechanical entanglement of spatially separated light fields.
The concept/technology behind this camera is light fields, or light traveling in every direction that permeates a space.
These eight papers from international contributors cover such issues as phenolic compounds, toxic metals in foods of animal origin, alcoholic fermentation stabilized by pulsed electric light fields and sulfur dioxide, the chemistry of defective coffee beans, the stability of tomato carotenoids during processing and storage, and the promise of protease from the intestine of the smooth hound fish which is oxidant-stable and has a with low molecular weight.