light adaptation

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light adaptation

The process, chiefly involving constriction of the pupil, by which the eye adapts to an increase in illumination.

light′-a·dapt′ed (-ə-dăp′tĭd) adj.

light′ adapta`tion

the reflex adjustment of the eye to bright light, consisting of a constriction of the pupil, an increase in the number of functioning cones, and a decrease in the number of functioning rods.
light′-a•dapt`ed, adj.
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Noun1.light adaptation - the process of adjusting the eyes to relatively high levels of illumination; the pupil constricts and the cones system is operative
adaptation - (physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)
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This LDM 98/PD 16VL01 photometric detector offers a photopic adaptation error of <3%, plus other PD-16 series radiometric detectors can be interchanged on the modular viewer unit for radiance measurement Typical applications include photometric brightness measurement of luminous surfaces such as monitor screens, alphanumeric displays, LED signs, emergency lighting, and illuminated control panels.