Human Eye:
The human eye works like a camera, taking light and turning it into signals that the brain can understand. Light enters the eye through the cornea and pupil, then passes through the lens which focuses it onto the retina. Specialized cells in the retina convert the light into electrical signals, which are then sent to the brain via the optic nerve, allowing us to see.
How can our eyes ‘see’ colors?
- Light waves that have been emitted (released) or reflected by an object, enter the eye and first pass through the protective transparent layer called the cornea where they are refracted.
- The light rays are then refracted again as they pass through the transparent lens (convex).
- The lens focuses the light waves on the retina, located on the back of the inside of the eye.
- The retina is composed of tiny light sensitive nerves that transfer the energy of the light waves to nerve impulses transmitted through the optic nerve to the brain for interpretation as sight.
