Visible Light Communications

Visible Light Communications

Visible Light Communications, shortly VLC, is a next generationclarify communications medium using visible light between 400T Hz and 800T Hz, that is safe for eyes.

It uses ordinary fluorescent bulb or LED to transmit signals.When using fluorescent bulb, it can send information 10 kbit/s, and if LED, 10 Mbit/s.

Specially designed electronic devices receive signals from such light source.

This technology can be used as communications medium for ubiquitous computing,because lights are put everywhere.

History

First started at Nakagawa Laboratory, in Keio University in 2003.

ee also

*RONJA
*Free space optics

External links

* [http://www.vlcc.net/e/index.html VLC consortium] (Japanese)


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Visible Light Communications — Visible Light Communications, oder kurz VLC, ist eine Datenübertragungstechnologie. Dabei werden Daten oder Informationen mit Hilfe des Übertragungsmediums Licht übertragen. Die Frequenz des zur Übertragung genutzten Lichtes befindet sich dabei… …   Deutsch Wikipedia

  • Light Data Transmission — attempts to transfer information using visible light.The Visible Light Communications Consortium are proposing using light emitting diodes to turn ordinary household fixtures such as light bulbs, televisions, or even flashlights into data… …   Wikipedia

  • Communications optiques en espace libre — Laser optique 8 faisceaux en espace libre, assurant un lien de débit 1Gbits/s à une distance approximative de 2km. Le récepteur est constitué du large disque central, l émetteur des 8 petits disques latéraux. En haut à droite, un objectif… …   Wikipédia en Français

  • light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics …   Universalium

  • Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …   Wikipedia

  • Light — For other uses, see Light (disambiguation). Visible light redirects here. For other uses, see Visible light (disambiguation) …   Wikipedia

  • Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …   Wikipedia

  • light-emitting diode (LED) — Semiconductor diode that produces visible or infrared light when subjected to an electric current, as a result of electroluminescence. Visible light LEDs are used in many electronic devices as indicator lamps (e.g., an on/off indicator) and, when …   Universalium

  • Speed of light — The speed of light in the vacuum of free space is an important physical constant usually denoted by the letter c . [NIST and BIPM practice is to use c 0 for the speed of light in vacuum in accord with international standard ISO 31 5. See… …   Wikipedia

  • Incandescent light bulb — The incandescent light bulb, incandescent lamp or incandescent light globe is a source of electric light that works by incandescence, (a general term for heat driven light emissions which includes the simple case of black body radiation). An… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”