Cone cells are specialized photoreceptor cells found in the retina of the eye. They are responsible for color vision and function best in bright light conditions. There are three types of cone cells, each sensitive to different wavelengths of light: short-wavelength (blue), medium-wavelength (green), and long-wavelength (red). These cells work by converting light into electrical signals, which are then processed by the brain to create visual images. Cone cells play a crucial role in our ability to perceive a wide range of colors and details in our environment, making them essential for activities like reading and recognizing faces.