Lifi Technology

Editor's Notes

1. “Li-Fi is typically implemented using white LED light bulbs. These devices are normally used for illumination by applying a constant current through the LED. However, by fast and subtle variations of the current, the optical output can be made to vary at extremely high speeds. Unseen by the human eye, this variation is used to carry high-speed data,” says Dr Povey, Product Manager of the University of Edinburgh's Li-Fi Program ‘D-Light Project’.
2. Dr. Gordon Povey  German Physicist , Product Manager of the University of Edinburgh's Li-Fi Program ‘D-Light Project’. Prof. Harald Haas  Professor Harald Haas, from the University of Edinburgh in the UK, is widely recognised as the original founder of Li-Fi. He coined the term LIFI. Dr. Mostafa Afgani  VP Engineering at PureLiFi
3. A number of companies offer uni-directional VLC products which is not the same as Li-Fi.
4. (In USA)
5. However a mere side effect of Li-Fi is that your power cord immediately becomes your data stream, so if you have power, you have Internet. The only infrastructure is an equipped light bulb. Your internet provider doesn't even need to bring you a box, they just connect you to their power-grid-mounted signal relays, and you're online.
6. Solid State-> Solid-state electronics are those circuits or devices built entirely from solid materials and in which the electrons, or other charge carriers, are confined entirely within the solid material. At the heart of LIFI™ is the bulb sub-assembly where a sealed bulb is embedded in a dielectric material. This design is more reliable than conventional light sources that insert degradable electrodes into the bulb. The dielectric material serves two purposes:- first as a waveguide for the RF energy transmitted by the PA second as an electric field concentrator that focuses energy in the bulb. The energy from the electric field rapidly heats the material in the bulb to a plasma state that emits light of high intensity and full spectrum.
7. A proof of concept (POC) or a proof of principle is a realization of a certain method or idea to demonstrate its feasibility, or a demonstration in principle, whose purpose is to verify that some concept or theory has the potential of being used. A proof of concept is usually small and may or may not be complete.
8. Airlines Airline Wi-Fi. Ugh. Nothing says captive audience like having to pay for the "service" of dial-up speed Wi-Fi on the plane. And don’t get me started on the pricing. The best I’ve heard so far is that passengers will "soon" be offered a "high-speed like" connection on some airlines. United is planning on speeds as high as 9.8 Mbps per plane. Uh, I have twice that capacity in my living room. And at the same price as checking a bag, I expect it. Li-Fi could easily introduce that sort of speed to each seat's reading light. I’ll be the guy WoWing next to you. It’s better than listening to you tell me about your wildly successful son, ma’am.
9. The entire lecture can be streamed in HD, downloaded and played back on every individual device in the room. Suddenly a slow lecture on a difficult subject can be a synergistic, adaptive learning experience, merely because you now have the bandwidth.
10. Peruse  Examine Smart Museums Another area where communications and radiation levels are intensely monitored, museums have strict rules about the environments where they store their treasures. What they do allow , all together now, is light. Li-Fi could enable a museum to deliver much more information on pieces in their collection than those tiny cards they paste to the walls could ever dream of. You could learn about the artist’s history, listen to an audio tour, peruse recent auctions of their work, and maybe even stream The Thomas Crown Affair. Extend this concept to art galleries and you can purchase the art right off the walls-- digitally.