Cell phones capture images using image sensors, lenses and LEDs. They transmit and receive voice and data, in part, using optical fiber.
Optical technology makes it possible for cell phones to record images as well as transmit and receive data. Efforts to combine lab-on-a-chip technologies and cell phones are creating powerful diagnostic tools. (Photo: iStock.com/franckreporter)
(Courtesy of iStock.com/franckreporter)