The Eye, Light and Color

The Light, exists independently of the function of the eye, The color, is a characteristic of the object and not of the light. The human Eye has adapted to the conditions and physical characteristics of the light to perceive both the intensity and the color. The human vision system allows detecting the light in a spectral range between the 400 nanometers (violet) up to the 700 nanometers (red).
The high resolution vision of the human eye is in narrow angles and has the skill of adapting to different intensities of light and color. The retina is a thin very sensitive membrane that lodges the controls the color and of the intensity of the light (the canes). The color sensor cones of high resolution are those who have the skill of separating the stimuli of color. The eyes divide the stimuli of color between the cones which are sensitive to red, green and blue respectively, so our vision of the color is the result of which cones are stimulated, to form all the existing colors. The controllers work to detect and to answer rapidly to the changes of intensity are the canes, they cannot create images of color. Both controllers, cones and canes, work together to create the images. The vision system across the canes has major sensibility in low levels of light and centers on the zone of intensity of the yellow greenish ones. The cones do not have sufficient sensibility in these conditions.