Color Research Paper Example | Topics and Well Written Essays - 1250 words

Color - Research Paper Example Color may be quantified and described by the extent to which they stimulate different types of cone cells (Travis, 2003). This is because color perception stems from different spectrum sensitivity of various cone cells in the retina to various parts of the spectrum. The physiological or physical color quantifications do not fully describe the color appearance and its psychophysical perception. The science of color is referred to as chromatography, color science or chromatics (Farndon, 2003). It involves color perception by the brain and human eye. Human perception of color originates from composites of light, photons’ energy spectrum entering the eye. The retina contains photosensitive cells on the back of the eye’s the inner surface. These photosensitive cells are composed of pigments absorbing visible light (Savage, 1998). There are two classes of photosensitive cells: cones and rods. Cones are responsible for human ability to distinguish between various colors (Klein er, 2004). On the other hand, the rods sense light intensity variations and are effective in dim light. Rods sense the flux of no photon energy, the incident photons. Therefore, whenever there is a dim light, human eye do not perceive colored objects as shades of color, but as shades of grey (Travis, 2003). Diagram of color and light Perception of color in the retina is done by photoreceptor cones which are sensitive to photons whose energy widely extend beyond the green, blue, and red spectrum portions (Kleiner, 2004). Color vision is often possible because of the differing photon energy sensitivity of the sets of cones (Savage, 1998). For every flux of photons or color signal, a ration of response in the different sets of cones is triggered. This ration is what permits color perception. During the day, human vision is effectively mostly in the blue-green where the spectrum of the sun is in its maximum region (Travis, 2003). Color sensation primarily depends on light composition, a mixture of colored light and white light (in itself can be wavelength mixture, like purple’s case) (Farndon, 2003). The colored light may have dominant hue or wavelength. The degree to which the wavelength dominates is referred to as chroma, saturation. This saturation, chroma decreases as the white light deletes the wavelength. There are 3 receptors that respond to various wavelengths in the eye. This results in attempts to chart colors via e primary lights mixture. A good number of colors are produces through mixing lights originating from the 3 primary lights. However, not all colors can be produced in this manner (Savage, 1998). Color vision development in human beings is an interesting process of evolution (Kleiner, 2004). The human eye is not in a linear straightforward development. Development of color vision begins as a light sensitive pigment and then differentiates on a smaller creature to create structures that are sensitive to light (Savage, 1998). These light se nsitive structures disperse in the forming eyeball and turns to be the retina. Initially, retina was like a moving sensor. However, it developed the ability to delineate fine details and to see color. The evolution of the eye and color perception is a standard development seen in all vertebrates and many non-vertebrates. So what is color? Why does retina develop ability to see color? (Farndon, 2003). Color is a visual perception that corresponds in human to the categories referred to as blue,