It was in 2011 that the concept of LI-FI was first brought to the attention of the public on a TED talk with almost 3,000,000 viewers, by Harald Hass. LiFi, Lighting Fidelity, is a wireless communication system that depends on light-based signals to carry data across devices. This technology uses infrared and visible wave of the light spectrum to transmit information through light communication.
The LiFi technology is fast gaining popularity as an alternative to the WiFi which uses radio frequency waves to transmit data. The working principle of LiFi lies in using modulation of light intensity to transfer data from one point to another. At its present level, only LED lamps can be used for such data transmission in the visible light spectrum. It is predicted that in the near future we will be able to transmit data through solar energy, which will facilitate access to people without internet and with limited electricity resources.
While traditional technologies like WiFi or 5G depend on radio waves of the electromagnetic spectrum, LiFi technology relies on using its optical waves and the transmission speed of data with Light Fidelity technology is up to 100 times faster then Wi-Fi. The operation of the Li-Fi technology will save costs as in homes and, above all, workplaces, it could do without electronic devices such as routers, modems, signal repeaters, wave amplifiers and antennas. These devices, which are currently connected to the power grid 24 hours a day, 7 days a week, would stop consuming electricity and its function it would be replaced by a LED bulb, which in most cases is already on during work time, so would not mean an extra cost.
On the other hand, being necessary to be in direct contact with the LED light beam emitter, computer security is strengthened. Only devices illuminated by the same light bulb can be interconnected with each other, eliminating attacks or unauthorized entry attempts from devices outside of our light spectrum. If all power to a light is turned off then there is no LiFi. However, LiFi technology can be enabled to dim low enough that a room will appear dark and still transmit data.
Below, images of our 3D lighting calcualtions software from the recenlty completed workplace for Frasers Property in Sydney CBD, with no ceiling troffers lights at all. Changing the way we live in a space, through lighting. on Linkedin @ Light it Design
