منابع مشابه
Clinical study of colour vision.
THE analysis of colour defects and individual differences in normal colour vision requires an apparatus in which spectral stimuli are used. It should be possible to determine the following: (1) Relative luminous efficiency of spectral light (luminosity curve). (2) Threshold of wavelength discrimination in spectrum (hue discrimination curve). (3) Threshold of saturation discrimination in spectru...
متن کاملColour vision
The immense range of colours that we see belies the relative simplicity of the system underlying colour vision. We see colours because each of the three distinct types of cone photoreceptor in our retinae is sensitive to a different range of wavelengths of light. The L, M and S cones, colloquially called red (R), green (G), and blue (B), are selective for long, middle and short wavelengths, res...
متن کاملColour vision
Editorial Colour vision 2006 is an important bicentenary for the Ulster Medical Society. In 806, the Belfast Medical Society was founded and the later formation of the Belfast Clinical and Pathological Society in 853, allowed amalgamation of both societies to form the current Ulster Medical Society in 862. The vision of the early founders of the Belfast Medical Society, was far sighted, and som...
متن کاملColour vision: Is colour constancy real?
Colour constancy is typically weaker in the laboratory than it seems in our everyday experience. New measurements using real-world stimuli show that colour constancy is in fact almost perfect, and that several different perceptual mechanisms contribute to achieving it.
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1955
ISSN: 0007-1161
DOI: 10.1136/bjo.39.3.170