Factors of Dark Adaptation

Dark adaptation: Why is it impossible to see immediately if you turn off the light? When exposed to "subject / patient is bright, adaptive light", the photochromic dye is called biological bleaching of rhodopsin, whereby the light is extinguished. The retina has two types of photoreceptors, a cone and a rod. The number of sticks is about 120 million more. The stick is responsible for low vision sight, not sensitive to color. This is called night vision.

Light sources in dark places are limited and hard to see. Alternating light and dark (night and day) brought some evolution to adapt to the dark. When a vertebrate goes into a dark place like a human being, its pupil spreads, more light comes into the eyes and night vision improves. In addition, photodetecting cells (rods and cones) in the human eye regenerate more unbleached rhodopsin when applied to the dark. The color of a point on a standard 24-bit computer display is defined by three RGB (red, green, blue) values, each ranging from 0 to 255. If the red, green, and blue components of the pixel are fully illuminated (255, 255, 255), the pixel is displayed in white and all three components are not lit (0, 0, 0) , Pixels are displayed in black.

Perhaps one of the most unknown factors in specifying an appropriate color is its role in the protection of visual efficiency and comfort. The ocular adaptation process involves an immediate response of the eye to changes in the extent of lighting. Lower light reflectance expands the pupil, but higher reflectance is opposite. Eyes see the density of lighting instead of lighting. Luminosity is the density that the eyes receive when reflected from the surface (floor, wall, furniture). If the difference in light intensity density in the field of view is too large, the muscles of the iris are constantly adjusted and deformed, causing eye fatigue. Studies have shown that suitable differences in luminescence density can prevent eye strain, improve vision, thereby increasing productivity