purkinje effect การใช้

• See Purkinje effect . talk ) 21 : 37, 26 October 2008 ( UTC)
• The shift in colour perception from dim light to daylight gives rise to differences known as the Purkinje effect.
• Camouflage experts have noted that the colour may make ships more obvious as a result of the Purkinje effect.
• In this process, the eye's perception of color changes as well ( this is called the Purkinje effect ).
• Could it have been Purkinje effect or scotopic vision ?-- Shantavira 07 : 01, 12 August 2006 ( UTC)
• Purity of color was important for full realization of the Purkinje effect where some colors appear lighter and some appear darker at low levels of illumination.
• This is linked to the Purkinje effect; individuals who desire some light at night time desire lower ( redder ) color temperatures even if luminance levels are very low.
• This is known as the Purkinje effect, and arises because the peak sensitivity of the human eye shifts toward the blue end of the spectrum at lower light levels.
• A red flashlight ( torch ) can be used to illuminate star charts, telescope parts, and the like without undoing the dark adaptation . ( See Purkinje effect ).
• This is because of the Purkinje effect-the light is not actually tinted blue, and although moonlight is often referred to as " silvery " it has no inherent silvery quality.
• The moonlit sky is not perceived as blue, however, because at low light levels human vision comes mainly from rod cells that do not produce any color perception ( Purkinje effect ).
• Though it is commonly thought that Rayleigh scattering strongly increases the brightness of skyglow arising from white sources with strong blue and green emission, the dominant spectral effect has been shown to arise from the Purkinje effect instead.
• This is responsible for the Purkinje effect : as intensity dims at twilight, the rods take over, and before color disappears completely, peak sensitivity of vision shifts towards the rods'peak sensitivity ( blue-green ).
• The Purkinje effect occurs at the transition between primary use of the scotopic ( rod-based ) systems, that is, in the mesopic state : as intensity dims, the rods take over, and before color disappears completely, it shifts towards the rods'top sensitivity.
• The "'Purkinje effect "'( sometimes called the "'Purkinje shift "'or "'dark adaptation "') is the tendency for the peak luminance sensitivity of the human eye to shift toward the blue end of the color spectrum at low Czech anatomist Jan Evangelista Purkyn
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• In 1929 and 1951 photographers found a figure reflected in the Virgin's eyes; upon inspection they said that the reflection was tripled in what is called the Purkinje effect, commonly found in human eyes . [ 77 ] An ophthalmologist, Dr . Jose Aste Tonsmann, later enlarged an image of the Virgin's eyes by 2500x and claimed to have found not only the aforementioned single figure, but images of all the witnesses present when the tilma was first revealed before Zum醨raga in 1531, plus a small family group of mother, father, and a group of children, in the center of the Virgin's eyes, fourteen people in all.
• I have considered the possibilities of differential distributions of " red " " v " " blue " cone cells on the retina ( with proportionally more red-sensitive cones further from the fovea, though references suggest that if anything the opposite is true, with the fovea being blue-cone poor ), of chromatic aberration in the eye varying with distance from the axis of vision ( which I believe exists, but is slight ), and of it being an obscure consequence of the Purkinje effect ( which as an erstwhile astronomer I'm familiar with, but would think should result in the opposite ), but I haven't been able to find any definitive information.