Haidinger’s Brushes and Circularly Polarized Light

Shurcliff, William A.

doi:10.1364/josa.45.000399

Cited by 23 publications

(11 citation statements)

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“…1 B), but somewhat reduced the subsequent UV content of the stimulus. These diffusers allowed the reduction of the degree of linear polarization of the stimulus light without the introduction of elliptical polarization (as is the case when using a circular polarizer), which in some rare cases can be converted back to linearly polarized light in the animal’s eye (Shurcliff, 1955; Choiu et al ., 2008; Templin et al ., 2017). In this study we can therefore disregard elliptical polarization, and its potential conversion to linear polarization, and instead refer to degree of linear polarization (DoLP) as degree of polarization wherever it was manipulated or measured.…”

Section: Methodsmentioning

confidence: 99%

Orienting to Polarized Light at Night—Matching Lunar Skylight to Performance in a Nocturnal Beetle

Foster

Kirwan

Jundi

et al. 2018

Preprint

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A degree-of-polarization threshold for orientation behaviour is 15 reported for nocturnal dung beetle Escarabaeus satyrus in the context 16 of measurements showing changes in the degree of polarization of 17 skylight with lunar phase. 18 Abstract 19For polarized light to inform behaviour, the typical range of degrees of 20 polarization observable in the animal's natural environment must be 21 above the threshold for detection and interpretation. Here we present 22 the first investigation of the degree of linear polarization threshold for 23 orientation behaviour in a nocturnal species, with specific reference to 24 the range of degrees of polarization measured in the night sky. An 25 effect of lunar phase on the degree of polarization of skylight was 26 found, with smaller illuminated fractions of the moon's surface 27 corresponding to lower degrees of polarization in the night sky. We 28 found that South African dung beetle Escarabaeus satyrus 29 (Boheman, 1860) can orient to polarized light for a range of 30 degrees of polarization similar to that observed in diurnal insects, 31 reaching a lower threshold between 0.04 and 0.32, possibly as low as 32 2 0.11. For degrees of polarization lower than 0.23, as measured on a 33 crescent moon night, orientation performance was considerably 34 weaker than that observed for completely linearly-polarized stimuli, 35 but was nonetheless stronger than in the absence of polarized light. 36

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Section: Methodsmentioning

confidence: 99%

Orienting to Polarized Light at Night—Matching Lunar Skylight to Performance in a Nocturnal Beetle

Foster

Kirwan

Jundi

et al. 2018

Preprint

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“…Like color and intensity, polarization is one essential characteristic of light. After training, many people can see the phenomenon ----Haidinger's brush [7] without any equipments.…”

Section: Discussionmentioning

confidence: 99%

“…How to cause Haidinger's brush is still unclear in early studies [7] [8] [9]. Some reports indicated the difference happens when the pigment lutein of retina absorb incidence light at different direction, and others indicated it is related to birefringence of the outer layer of the cones, even it may be involved in nerve centre of vision.…”

Section: Discussionmentioning

confidence: 99%

37.5: Invited Paper: The Circular Polarized LCD‐TV and Its Advantage over Visual Fatigue

Yan

Zhu

et al. 2009

Symp Digest of Tech Papers

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“…We ex pect therefore little or no physiological link with the formation of the well-known Haidinger brush effect of polarized light [1][2][3][4][5][6]. Ophthalmic stress situations, like extremely high or low levels of illumination and their consequent change of the iris diameter or source flicker were not examined in this con text.…”

Section: Discussionmentioning

confidence: 99%

“…This phe nomenon is very difficult to observe with colors other than deep blue, and most expla nations concede to a local sensitivity of the human retina to strongly polarized light [3, p. 111 ff; [4][5][6]. A conversion of the very subtle effect into more perceptible color fringes may be accomplished with Savart's double plate polarimeter.…”

Section: Introductionmentioning

confidence: 99%

Peripheral Response of the Retina to Polarized Light

Gerharz¹

1982

Ophthalmologica

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The perception of polarized light by the human eye is facilitated with Savart’s double-plate polarimeter. This device converts polarized light into interference fringes from which criteria for the polarization sensitivity of the retinal hemisphere may be derived. The rather preliminary tests in this report covered the entire visual fÍeld of the eye and led to the discovery of a nonuniform off-axis distribution of the retinal sensitivity to polarized white light. The results are reminiscent of similar effects in geometrical optics, where oblique light rays become slightly polarized upon the penetration of successive layers of translucent optical surfaces. Similar experiments with incident elliptically polarized rays suggest that the retina responds in the same nonuniform manner.

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Haidinger’s Brushes and Circularly Polarized Light

Cited by 23 publications

References 0 publications

Orienting to Polarized Light at Night—Matching Lunar Skylight to Performance in a Nocturnal Beetle

Orienting to Polarized Light at Night—Matching Lunar Skylight to Performance in a Nocturnal Beetle

37.5: Invited Paper: The Circular Polarized LCD‐TV and Its Advantage over Visual Fatigue

Peripheral Response of the Retina to Polarized Light

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